package demo.yt.com.demo;

import android.Manifest;
import android.content.Context;
import android.content.pm.PackageManager;
import android.graphics.ImageFormat;
import android.graphics.SurfaceTexture;
import android.hardware.camera2.CameraAccessException;
import android.hardware.camera2.CameraCaptureSession;
import android.hardware.camera2.CameraCharacteristics;
import android.hardware.camera2.CameraDevice;
import android.hardware.camera2.CameraManager;
import android.hardware.camera2.CaptureFailure;
import android.hardware.camera2.CaptureRequest;
import android.hardware.camera2.CaptureResult;
import android.hardware.camera2.TotalCaptureResult;
import android.hardware.camera2.params.StreamConfigurationMap;
import android.media.Image;
import android.media.ImageReader;
import android.os.Bundle;
import android.os.Handler;
import android.os.HandlerThread;
import android.util.Log;
import android.util.Size;
import android.util.SparseIntArray;
import android.view.Surface;
import android.view.TextureView;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;
import androidx.core.content.ContextCompat;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.util.Arrays;

public class Demo2Activity extends AppCompatActivity {
    private static final String TAG = Camera2Activity.class.getName();
    private String[] permission = {Manifest.permission.CAMERA};
    private TextureView mTextureView;    //注意使用TextureView需要开启硬件加速,开启方法很简单在AndroidManifest.xml 清单文件里,你需要使用TextureView的activity添加android:hardwareAccelerated="true"
    private Button mBtnPhotograph;
    private HandlerThread mHandlerThread;
    private Handler mChildHandler = null;
    private CameraManager mCameraManager;                                //相机管理类,用于检测系统相机获取相机id
    private CameraDevice mCameraDevice;                                        //Camera设备类
    private CameraCaptureSession.StateCallback mSessionStateCallback;        //获取的会话类状态回调
    private CameraCaptureSession.CaptureCallback mSessionCaptureCallback;    //获取会话类的获取数据回调
    private CaptureRequest.Builder mCaptureRequest;                            //获取数据请求配置类
    private CameraDevice.StateCallback mStateCallback;                        //摄像头状态回调
    private CameraCaptureSession mCameraCaptureSession;                    //获取数据会话类
    private ImageReader mImageReader;                                        //照片读取器
    private Surface mSurface;
    private SurfaceTexture mSurfaceTexture;
    private String mCurrentCameraId;
    private static final SparseIntArray ORIENTATIONS = new SparseIntArray();


    static {// /为了使照片竖直显示
        ORIENTATIONS.append(Surface.ROTATION_0, 90);
        ORIENTATIONS.append(Surface.ROTATION_90, 0);
        ORIENTATIONS.append(Surface.ROTATION_180, 270);
        ORIENTATIONS.append(Surface.ROTATION_270, 180);
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_camera2);
        mTextureView = findViewById(R.id.textureview);
        mBtnPhotograph = findViewById(R.id.btn_Photograph);
        mBtnPhotograph.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                try {
                    mCameraCaptureSession.stopRepeating();//停止重复   取消任何正在进行的重复捕获集 在这里就是停止画面预览

                    /*  mCameraCaptureSession.abortCaptures(); //终止获取   尽可能快地放弃当前挂起和正在进行的所有捕获。
                     * 这里有一个坑,其实这个并不能随便调用(我是看到别的demo这么使用,但是其实是错误的,所以就在这里备注这个坑).
                     * 最好只在Activity里的onDestroy调用它,终止获取是耗时操作,需要一定时间重新打开会话通道.
                     * 在这个demo里我并没有恢复预览,如果你调用了这个方法关闭了会话又拍照后恢复图像预览,会话就会频繁的开关,
                     * 导致拍照图片在处理耗时缓存时你又关闭了会话.导致照片缓存不完整并且失败.
                     * 所以切记不要随便使用这个方法,会话开启后并不需要关闭刷新.后续其他拍照/预览/录制视频直接操作这个会话即可
                     */

                    takePicture();//拍照
                } catch (CameraAccessException e) {
                    e.printStackTrace();
                }
            }
        });
        initPermission();
        initChildThread();
        initImageReader();
        initTextureView();

    }

    /**
     * 初始化权限
     */
    private void initPermission() {
        if (ContextCompat.checkSelfPermission(this, Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED) {
            ActivityCompat.requestPermissions(this, permission, 1);
        }

    }

    private void initTextureView() {
        mTextureView.setSurfaceTextureListener(new TextureView.SurfaceTextureListener() {
            @Override
            public void onSurfaceTextureAvailable(SurfaceTexture surface, int width, int height) {
                Log.e(TAG, "TextureView 启用成功");
                initCameraManager();
                initCameraCallback();
                initCameraCaptureSessionStateCallback();
                initCameraCaptureSessionCaptureCallback();
                selectCamera();
                openCamera();

            }

            @Override
            public void onSurfaceTextureSizeChanged(SurfaceTexture surface, int width, int height) {
                Log.e(TAG, "SurfaceTexture 变化");

            }

            @Override
            public boolean onSurfaceTextureDestroyed(SurfaceTexture surface) {
                Log.e(TAG, "SurfaceTexture 的销毁");
　　　　　　　　　　//这里返回true则是交由系统执行释放，如果是false则需要自己调用surface.release();
                return true;
            }

            @Override
            public void onSurfaceTextureUpdated(SurfaceTexture surface) {

            }
        });
    }

    /**
     * 初始化子线程
     */
    private void initChildThread() {
        mHandlerThread = new HandlerThread("camera2");
        mHandlerThread.start();
        mChildHandler = new Handler(mHandlerThread.getLooper());
    }

    /**
     * 初始化相机管理
     */
    private void initCameraManager() {
        mCameraManager = (CameraManager) getSystemService(Context.CAMERA_SERVICE);

    }

    /**
     * 获取匹配的大小
     *
     * @return
     */
    private Size getMatchingSize() {

        Size selectSize = null;
        float selectProportion = 0;
        try {
            float viewProportion = (float) mTextureView.getWidth() / (float) mTextureView.getHeight();
            CameraCharacteristics cameraCharacteristics = mCameraManager.getCameraCharacteristics(mCurrentCameraId);
            StreamConfigurationMap streamConfigurationMap = cameraCharacteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
            Size[] sizes = streamConfigurationMap.getOutputSizes(ImageFormat.JPEG);
            for (int i = 0; i < sizes.length; i++) {
                Size itemSize = sizes[i];
                float itemSizeProportion = (float) itemSize.getHeight() / (float) itemSize.getWidth();
                float differenceProportion = Math.abs(viewProportion - itemSizeProportion);
                Log.e(TAG, "相减差值比例=" + differenceProportion);
                if (i == 0) {
                    selectSize = itemSize;
                    selectProportion = differenceProportion;
                    continue;
                }
                if (differenceProportion <= selectProportion) {
                    if (differenceProportion == selectProportion) {
                        if (selectSize.getWidth() + selectSize.getHeight() < itemSize.getWidth() + itemSize.getHeight()) {
                            selectSize = itemSize;
                            selectProportion = differenceProportion;
                        }

                    } else {
                        selectSize = itemSize;
                        selectProportion = differenceProportion;
                    }
                }
            }

        } catch (CameraAccessException e) {
            e.printStackTrace();
        }
        Log.e(TAG, "getMatchingSize: 选择的比例是=" + selectProportion);
        Log.e(TAG, "getMatchingSize: 选择的尺寸是 宽度=" + selectSize.getWidth() + "高度=" + selectSize.getHeight());
        return selectSize;
    }

    /**
     * 选择摄像头
     */
    private void selectCamera() {
        try {
            String[] cameraIdList = mCameraManager.getCameraIdList();//获取摄像头id列表
            if (cameraIdList.length == 0) {
                return;
            }

            for (String cameraId : cameraIdList) {
                Log.e(TAG, "selectCamera: cameraId=" + cameraId);
                //获取相机特征,包含前后摄像头信息，分辨率等
                CameraCharacteristics cameraCharacteristics = mCameraManager.getCameraCharacteristics(cameraId);
                Integer facing = cameraCharacteristics.get(CameraCharacteristics.LENS_FACING);//获取这个摄像头的面向
                //CameraCharacteristics.LENS_FACING_BACK 后摄像头
                //CameraCharacteristics.LENS_FACING_FRONT 前摄像头
                //CameraCharacteristics.LENS_FACING_EXTERNAL 外部摄像头,比如OTG插入的摄像头
                if (facing == CameraCharacteristics.LENS_FACING_FRONT) {
                    mCurrentCameraId = cameraId;

                }

            }
        } catch (CameraAccessException e) {
            e.printStackTrace();
        }
    }

    /**
     * 初始化摄像头状态回调
     */
    private void initCameraCallback() {
        mStateCallback = new CameraDevice.StateCallback() {
            /**
             * 摄像头打开时
             * @param camera
             */
            @Override
            public void onOpened(@NonNull CameraDevice camera) {
                Log.e(TAG, "相机开启");
                mCameraDevice = camera;

                try {
                    mSurfaceTexture = mTextureView.getSurfaceTexture();        //surfaceTexture    需要手动释放
                    Size matchingSize = getMatchingSize();
                    mSurfaceTexture.setDefaultBufferSize(matchingSize.getWidth(), matchingSize.getHeight());//设置预览的图像尺寸
                    mSurface = new Surface(mSurfaceTexture);//surface最好在销毁的时候要释放,surface.release();
//                        CaptureRequest可以完全自定义拍摄参数,但是需要配置的参数太多了,所以Camera2提供了一些快速配置的参数,如下:
// 　　　　　　　　　      TEMPLATE_PREVIEW ：预览
//                        TEMPLATE_RECORD：拍摄视频
//                        TEMPLATE_STILL_CAPTURE：拍照
//                        TEMPLATE_VIDEO_SNAPSHOT：创建视视频录制时截屏的请求
//                        TEMPLATE_ZERO_SHUTTER_LAG：创建一个适用于零快门延迟的请求。在不影响预览帧率的情况下最大化图像质量。
//                        TEMPLATE_MANUAL：创建一个基本捕获请求，这种请求中所有的自动控制都是禁用的(自动曝光，自动白平衡、自动焦点)。
                    mCaptureRequest = mCameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_PREVIEW);//创建预览请求
                    mCaptureRequest.addTarget(mSurface); //添加surface   实际使用中这个surface最好是全局变量 在onDestroy的时候mCaptureRequest.removeTarget(mSurface);清除,否则会内存泄露
                    mCaptureRequest.set(CaptureRequest.CONTROL_AF_MODE, CaptureRequest.CONTROL_AF_MODE_CONTINUOUS_PICTURE);//自动对焦
                    /**
                     * 创建获取会话
                     * 这里会有一个容易忘记的坑,那就是Arrays.asList(surface, mImageReader.getSurface())这个方法
                     * 这个方法需要你导入后面需要操作功能的所有surface,比如预览/拍照如果你2个都要操作那就要导入2个
                     * 否则后续操作没有添加的那个功能就报错surface没有准备好,这也是我为什么先初始化ImageReader的原因,因为在这里就可以拿到ImageReader的surface了
                     */
                    mCameraDevice.createCaptureSession(Arrays.asList(mSurface, mImageReader.getSurface()), mSessionStateCallback, mChildHandler);
                } catch (CameraAccessException e) {
                    e.printStackTrace();
                }

            }

            /**
             *摄像头断开时
             * @param camera
             */
            @Override
            public void onDisconnected(@NonNull CameraDevice camera) {

            }

            /**
             * 出现异常情况时
             * @param camera
             * @param error
             */
            @Override
            public void onError(@NonNull CameraDevice camera, int error) {

            }

            /**
             * 摄像头关闭时
             * @param camera
             */
            @Override
            public void onClosed(@NonNull CameraDevice camera) {
                super.onClosed(camera);
            }
        };
    }

    /**
     * 摄像头获取会话状态回调
     */
    private void initCameraCaptureSessionStateCallback() {
        mSessionStateCallback = new CameraCaptureSession.StateCallback() {


            //摄像头完成配置，可以处理Capture请求了。
            @Override
            public void onConfigured(@NonNull CameraCaptureSession session) {
                try {
                    mCameraCaptureSession = session;
                    //注意这里使用的是 setRepeatingRequest() 请求通过此捕获会话无休止地重复捕获图像。用它来一直请求预览图像
                    mCameraCaptureSession.setRepeatingRequest(mCaptureRequest.build(), mSessionCaptureCallback, mChildHandler);


//                    mCameraCaptureSession.stopRepeating();//停止重复   取消任何正在进行的重复捕获集
//                    mCameraCaptureSession.abortCaptures();//终止获取   尽可能快地放弃当前挂起和正在进行的所有捕获。请只在销毁activity的时候调用它
                } catch (CameraAccessException e) {
                    e.printStackTrace();
                }

            }

            //摄像头配置失败
            @Override
            public void onConfigureFailed(@NonNull CameraCaptureSession session) {

            }
        };
    }

    /**
     * 摄像头获取会话数据回调
     */
    private void initCameraCaptureSessionCaptureCallback() {
        mSessionCaptureCallback = new CameraCaptureSession.CaptureCallback() {
            @Override
            public void onCaptureStarted(@NonNull CameraCaptureSession session, @NonNull CaptureRequest request, long timestamp, long frameNumber) {
                super.onCaptureStarted(session, request, timestamp, frameNumber);
            }

            @Override
            public void onCaptureProgressed(@NonNull CameraCaptureSession session, @NonNull CaptureRequest request, @NonNull CaptureResult partialResult) {
                super.onCaptureProgressed(session, request, partialResult);
            }

            @Override
            public void onCaptureCompleted(@NonNull CameraCaptureSession session, @NonNull CaptureRequest request, @NonNull TotalCaptureResult result) {
                super.onCaptureCompleted(session, request, result);
//                Log.e(TAG, "onCaptureCompleted: 触发接收数据");
//                Size size = request.get(CaptureRequest.JPEG_THUMBNAIL_SIZE);

            }

            @Override
            public void onCaptureFailed(@NonNull CameraCaptureSession session, @NonNull CaptureRequest request, @NonNull CaptureFailure failure) {
                super.onCaptureFailed(session, request, failure);
            }

            @Override
            public void onCaptureSequenceCompleted(@NonNull CameraCaptureSession session, int sequenceId, long frameNumber) {
                super.onCaptureSequenceCompleted(session, sequenceId, frameNumber);
            }

            @Override
            public void onCaptureSequenceAborted(@NonNull CameraCaptureSession session, int sequenceId) {
                super.onCaptureSequenceAborted(session, sequenceId);
            }

            @Override
            public void onCaptureBufferLost(@NonNull CameraCaptureSession session, @NonNull CaptureRequest request, @NonNull Surface target, long frameNumber) {
                super.onCaptureBufferLost(session, request, target, frameNumber);
            }
        };
    }

    /**
     * 打开摄像头
     */
    private void openCamera() {
        try {
            if (checkSelfPermission(Manifest.permission.CAMERA) == PackageManager.PERMISSION_GRANTED) {
                mCameraManager.openCamera(mCurrentCameraId, mStateCallback, mChildHandler);
                return;
            }
            Toast.makeText(this, "没有授权", Toast.LENGTH_SHORT).show();

        } catch (CameraAccessException e) {
            e.printStackTrace();
        }
    }

    /**
     * 初始化图片读取器
     */
    private void initImageReader() {
        //创建图片读取器,参数为分辨率宽度和高度/图片格式/需要缓存几张图片,我这里写的2意思是获取2张照片
        mImageReader = ImageReader.newInstance(1080, 1920, ImageFormat.JPEG, 2);
        mImageReader.setOnImageAvailableListener(new ImageReader.OnImageAvailableListener() {
            @Override
            public void onImageAvailable(ImageReader reader) {
//        image.acquireLatestImage();//从ImageReader的队列中获取最新的image,删除旧的
//        image.acquireNextImage();//从ImageReader的队列中获取下一个图像,如果返回null没有新图像可用
                Image image = reader.acquireNextImage();
                try {
                    File path = new File(Camera2Activity.this.getExternalCacheDir().getPath());
                    if (!path.exists()) {
                        Log.e(TAG, "onImageAvailable: 路径不存在");
                        path.mkdirs();
                    } else {
                        Log.e(TAG, "onImageAvailable: 路径存在");
                    }
                    File file = new File(path, "demo.jpg");
                    FileOutputStream fileOutputStream = new FileOutputStream(file);

//        这里的image.getPlanes()[0]其实是图层的意思,因为我的图片格式是JPEG只有一层所以是geiPlanes()[0],如果你是其他格式(例如png)的图片会有多个图层,就可以获取指定图层的图像数据　　　　　　　
                    ByteBuffer byteBuffer = image.getPlanes()[0].getBuffer();
                    byte[] bytes = new byte[byteBuffer.remaining()];
                    byteBuffer.get(bytes);
                    fileOutputStream.write(bytes);
                    fileOutputStream.flush();
                    fileOutputStream.close();
                    image.close();
                } catch (FileNotFoundException e) {
                    e.printStackTrace();
                } catch (IOException e) {
                    e.printStackTrace();
                }


            }
        }, mChildHandler);
    }

    private void takePicture() {
        CaptureRequest.Builder captureRequestBuilder = null;
        try {
            captureRequestBuilder = mCameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_STILL_CAPTURE);
            captureRequestBuilder.set(CaptureRequest.CONTROL_AF_MODE, CaptureRequest.CONTROL_AF_MODE_CONTINUOUS_PICTURE);//自动对焦
            captureRequestBuilder.set(CaptureRequest.CONTROL_AE_MODE, CaptureRequest.CONTROL_AE_MODE_ON_AUTO_FLASH);//自动爆光
//            // 获取手机方向,如果你的app有提供横屏和竖屏,那么就需要下面的方法来控制照片为竖立状态
//            int rotation = getWindowManager().getDefaultDisplay().getRotation();
//            Log.e(TAG, "takePicture: 手机方向="+rotation);
//            Log.e(TAG, "takePicture: 照片方向="+ORIENTATIONS.get(rotation));
            captureRequestBuilder.set(CaptureRequest.JPEG_ORIENTATION, 270);//我的项目不需要,直接写死270度 将照片竖立
            Surface surface = mImageReader.getSurface();
            captureRequestBuilder.addTarget(surface);
            CaptureRequest request = captureRequestBuilder.build();
            mCameraCaptureSession.capture(request, null, mChildHandler); //获取拍照
        } catch (CameraAccessException e) {
            e.printStackTrace();
        }
    }

    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        switch (requestCode) {
            case 1:
                if (permissions.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                    Toast.makeText(this, "授权成功", Toast.LENGTH_SHORT).show();
                } else {
                    Toast.makeText(this, "授权失败", Toast.LENGTH_SHORT).show();
                    finish();
                }
                break;
            default:
        }
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        if (mCaptureRequest != null) {
            mCaptureRequest.removeTarget(mSurface);
            mCaptureRequest = null;
        }
        if (mSurface != null) {
            mSurface.release();
            mSurface = null;
        }
        if (mSurfaceTexture != null){
            mSurfaceTexture.release();
            mSurfaceTexture = null;
        }
        if (mCameraCaptureSession != null) {
            try {
                mCameraCaptureSession.stopRepeating();
                mCameraCaptureSession.abortCaptures();
　　　　　　　　　　mCameraCaptureSession.close();
            } catch (CameraAccessException e) {
                e.printStackTrace();
            }
            mCameraCaptureSession = null;
        }

        if (mCameraDevice != null) {
            mCameraDevice.close();
            mCameraDevice = null;
        }
        if (null != mImageReader) {
            mImageReader.close();
            mImageReader = null;
        }
        if (mChildHandler != null) {
            mChildHandler.removeCallbacksAndMessages(null);
            mChildHandler = null;
        }
        if (mHandlerThread != null) {
            mHandlerThread.quitSafely();
            mHandlerThread = null;
        }

        mCameraManager = null;
        mSessionStateCallback = null;
        mSessionCaptureCallback = null;
        mStateCallback = null;

    }
}

public class FaceCameraActivity extends BaseActivity implements View.OnClickListener {
    private TextureView mTextureView;
    private Button mBtnCamera;
    private ImageView mBack;
    private MaterialDialog mHandlerImageWaitDialog;
    private CameraManager mCameraManager;
    private CameraDevice mCameraDevice;
    private ImageReader mImageReader;
    private CaptureRequest.Builder mCaptureRequest;
    private CameraDevice.StateCallback mCameraDeviceStateCallback;
    private CameraCaptureSession.StateCallback mCameraCaptureSessionStateCallback;
    private CameraCaptureSession.CaptureCallback mCameraCaptureSessionCaptureCallback;
    private CameraCaptureSession mCameraCaptureSession;
    private String mCurrentCameraId;
    private Size mCurrentSelectSize;
    private Handler mChildHandler;
    private Surface mSurface;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        initChildThread();
        initCameraManager();
        initSelectCamera();
        initHandlerMatchingSize();
        initImageReader();
        initTextureViewListener();
        initCameraDeviceStateCallbackListener();
        initCameraCaptureSessionStateCallbackListener();
        initCameraCaptureSessionCaptureCallbackListener();

    }

    @Override
    public int getLayout() {
        return R.layout.activity_face_camera;
    }

    @Override
    public void initView() {
        mBack = findViewById(R.id.back);
        mTextureView = findViewById(R.id.texture_view);
        mBtnCamera = findViewById(R.id.btn_camera);
        mBack.setOnClickListener(this);
        mBtnCamera.setOnClickListener(this);

    }

    @Override
    public void onClick(View v) {
        switch (v.getId()) {
            case R.id.btn_camera:
                if (ButtonDelayUtil.isFastClick()){
                    handlerImageWaitDialog().show();
                    stopPreview();
                    takePicture();

                }

                break;
            case R.id.back:
                finish();
                break;
            default:
                break;
        }

    }

    private void initChildThread() {
        HandlerThread handlerThread = new HandlerThread("faceCamera");
        handlerThread.start();
        mChildHandler = new Handler(handlerThread.getLooper());

    }


    /**
     * 初始化相机管理
     */
    private void initCameraManager() {
        mCameraManager = (CameraManager) getSystemService(Context.CAMERA_SERVICE);
    }

    /**
     * 初始化选择摄像头
     */
    private void initSelectCamera() {
        try {
            String[] cameraIdArray = mCameraManager.getCameraIdList();
            for (String itemId : cameraIdArray) {
                CameraCharacteristics itemCharacteristics = mCameraManager.getCameraCharacteristics(itemId);
                Integer facing = itemCharacteristics.get(CameraCharacteristics.LENS_FACING);
                if (facing == CameraCharacteristics.LENS_FACING_FRONT) {
                    mCurrentCameraId = itemId;
                    break;
                }

            }
        } catch (CameraAccessException e) {
            e.printStackTrace();
        }
        if (mCurrentCameraId == null) {
            finish();
            Toast.makeText(this, "此设备不支持前摄像头", Toast.LENGTH_SHORT).show();
        }

    }

   /**
     * 初始化计算适合当前屏幕分辨率的拍照分辨率
     * @return
     */
    private void initHandlerMatchingSize() {
        try {
            CameraCharacteristics cameraCharacteristics = mCameraManager.getCameraCharacteristics(mCurrentCameraId);
            StreamConfigurationMap streamConfigurationMap = cameraCharacteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
            Size[] sizes = streamConfigurationMap.getOutputSizes(ImageFormat.JPEG);
            DisplayMetrics displayMetrics = getResources().getDisplayMetrics();
            int deviceWidth = displayMetrics.widthPixels;
            int deviceHeigh = displayMetrics.heightPixels;
            L.e("当前屏幕密度宽度="+deviceWidth+"高度="+deviceHeigh);
            for (int j = 1; j < 81; j++) {
                for (int i = 0; i < sizes.length; i++) {
                    Size itemSize = sizes[i];
                    if (itemSize.getHeight() < (deviceWidth + j * 5) && itemSize.getHeight() > (deviceWidth - j * 5)) {
                        if (mCurrentSelectSize != null) { //如果之前已经找到一个匹配的宽度
                            if (Math.abs(deviceHeigh-itemSize.getWidth()) < Math.abs(deviceHeigh - mCurrentSelectSize.getWidth())){ //求绝对值算出最接近设备高度的尺寸
                                mCurrentSelectSize = itemSize;
                                continue;

                            }
                        }else {
                            mCurrentSelectSize = itemSize;
                        }

                    }
                }

            }
        } catch (CameraAccessException e) {
            e.printStackTrace();
        }
        L.e("当前预览宽度="+mCurrentSelectSize.getWidth()+"高度="+mCurrentSelectSize.getHeight());
    }

    private void initImageReader() {
        L.e("初始化图片ImageReader的宽="+mCurrentSelectSize.getWidth()+"高="+mCurrentSelectSize.getHeight());
        mImageReader = ImageReader.newInstance(mCurrentSelectSize.getWidth()
                , mCurrentSelectSize.getHeight()
                , ImageFormat.JPEG
                , 2);

        mImageReader.setOnImageAvailableListener(new ImageReader.OnImageAvailableListener() {
            @Override
            public void onImageAvailable(ImageReader reader) {
                FilePathSession.deleteFaceImageFile();
                Image image = reader.acquireLatestImage();
                ByteBuffer byteBuffer = image.getPlanes()[0].getBuffer();
                byte[] bytes = new byte[byteBuffer.remaining()];
                byteBuffer.get(bytes);
                try {
                    FileOutputStream fileOutputStream = new FileOutputStream(FilePathSession.getFaceImagePath());
                    fileOutputStream.write(bytes);
                    fileOutputStream.flush();
                    fileOutputStream.close();
                    image.close();
                    startPreview();
                    handlerImageWaitDialog().dismiss();
                    runOnUiThread(new Runnable() {
                        @Override
                        public void run() {
                            Intent startFaceConfirm = new Intent(FaceCameraActivity.this, FaceConfirmActivity.class);
                            startActivity(startFaceConfirm);
                            FaceCameraActivity.this.finish();
                        }
                    });

                } catch (FileNotFoundException e) {
                    e.printStackTrace();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }, mChildHandler);
    }

    private void initTextureViewListener() {
        mTextureView.setSurfaceTextureListener(new TextureView.SurfaceTextureListener() {
            @Override
            public void onSurfaceTextureAvailable(SurfaceTexture surface, int width, int height) {
                openCamera();

            }

            @Override
            public void onSurfaceTextureSizeChanged(SurfaceTexture surface, int width, int height) {

            }

            @Override
            public boolean onSurfaceTextureDestroyed(SurfaceTexture surface) {
                return true;
            }

            @Override
            public void onSurfaceTextureUpdated(SurfaceTexture surface) {

            }
        });
    }

    private void initCameraDeviceStateCallbackListener() {
        mCameraDeviceStateCallback = new CameraDevice.StateCallback() {
            @Override
            public void onOpened(@NonNull CameraDevice camera) {
                //相机开启
                mCameraDevice = camera;
                try {
                    SurfaceTexture surfaceTexture = mTextureView.getSurfaceTexture();
                    surfaceTexture.setDefaultBufferSize(mCurrentSelectSize.getWidth(),mCurrentSelectSize.getHeight());
                    mSurface = new Surface(surfaceTexture);
                    mCaptureRequest = mCameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_PREVIEW);
                    mCaptureRequest.set(CaptureRequest.CONTROL_AF_MODE, CaptureRequest.CONTROL_AF_MODE_CONTINUOUS_PICTURE);
                    mCaptureRequest.set(CaptureRequest.CONTROL_AE_MODE, CaptureRequest.CONTROL_AE_MODE_ON_AUTO_FLASH);//自动爆光
                    mCaptureRequest.addTarget(mSurface);
                    mCameraDevice.createCaptureSession(Arrays.asList(mSurface, mImageReader.getSurface())
                            , mCameraCaptureSessionStateCallback
                            , mChildHandler);

                } catch (CameraAccessException e) {
                    e.printStackTrace();
                }

            }

            @Override
            public void onDisconnected(@NonNull CameraDevice camera) {

            }

            @Override
            public void onError(@NonNull CameraDevice camera, int error) {
                finish();
                Toast.makeText(FaceCameraActivity.this, "相机打开失败", Toast.LENGTH_SHORT).show();
                L.e("CameraDevice.StateCallback onError : 相机异常 error code="+error);

            }
        };
    }

    private void initCameraCaptureSessionStateCallbackListener() {
        mCameraCaptureSessionStateCallback = new CameraCaptureSession.StateCallback() {
            @Override
            public void onConfigured(@NonNull CameraCaptureSession session) {
                mCameraCaptureSession = session;
                startPreview();

            }

            @Override
            public void onConfigureFailed(@NonNull CameraCaptureSession session) {
                finish();
                Toast.makeText(FaceCameraActivity.this, "相机打开失败", Toast.LENGTH_SHORT).show();
                L.e("CameraCaptureSession.StateCallback onConfigureFailed : CameraCaptureSession会话通道创建失败");

            }
        };
    }

    private void initCameraCaptureSessionCaptureCallbackListener() {
        mCameraCaptureSessionCaptureCallback = new CameraCaptureSession.CaptureCallback() {
            @Override
            public void onCaptureStarted(@NonNull CameraCaptureSession session, @NonNull CaptureRequest request, long timestamp, long frameNumber) {
                super.onCaptureStarted(session, request, timestamp, frameNumber);
                //获取开始
            }

            @Override
            public void onCaptureProgressed(@NonNull CameraCaptureSession session, @NonNull CaptureRequest request, @NonNull CaptureResult partialResult) {
                super.onCaptureProgressed(session, request, partialResult);
                //获取中
            }

            @Override
            public void onCaptureCompleted(@NonNull CameraCaptureSession session, @NonNull CaptureRequest request, @NonNull TotalCaptureResult result) {
                super.onCaptureCompleted(session, request, result);
                //获取结束
            }

            @Override
            public void onCaptureFailed(@NonNull CameraCaptureSession session, @NonNull CaptureRequest request, @NonNull CaptureFailure failure) {
                super.onCaptureFailed(session, request, failure);
                //获取失败

                Toast.makeText(FaceCameraActivity.this, "拍照失败", Toast.LENGTH_SHORT).show();
                L.e("失败报告Reason="+failure.getReason());

            }
        };
    }

    @SuppressLint("MissingPermission")
    private void openCamera() {
        try {
            mCameraManager.openCamera(mCurrentCameraId, mCameraDeviceStateCallback, mChildHandler);
        } catch (CameraAccessException e) {
            e.printStackTrace();
        }
    }


    private MaterialDialog handlerImageWaitDialog(){
        if (mHandlerImageWaitDialog == null){
            mHandlerImageWaitDialog = new MaterialDialog.Builder(this)
                    .content("正在处理图像中...")
                    .progress(true,-1)
                    .cancelable(false)
                    .build();
        }
        return mHandlerImageWaitDialog;
    }

    /**
     * 开始预览
     */
    private void startPreview(){
        try {
            mCameraCaptureSession.setRepeatingRequest(mCaptureRequest.build(), mCameraCaptureSessionCaptureCallback, mChildHandler);
        } catch (CameraAccessException e) {
            e.printStackTrace();
        }
    }

    /**
     * 停止预览
     */
    private void stopPreview(){
        try {
            mCameraCaptureSession.stopRepeating();
        } catch (CameraAccessException e) {
            e.printStackTrace();
        }

    }

     /**
     * 拍照
     */
    private void takePicture(){
        try {
            CaptureRequest.Builder takePictureRequest = mCameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_STILL_CAPTURE);
            takePictureRequest.set(CaptureRequest.CONTROL_AF_MODE, CaptureRequest.CONTROL_AF_MODE_CONTINUOUS_PICTURE);//自动对焦
            takePictureRequest.set(CaptureRequest.CONTROL_AE_MODE, CaptureRequest.CONTROL_AE_MODE_ON_AUTO_FLASH);//自动爆光
            int rotation = getWindowManager().getDefaultDisplay().getRotation();
            int angle = getJpegOrientation(mCameraManager.getCameraCharacteristics(mCurrentCameraId), rotation);
            L.i("人脸拍照 照片角度="+angle);
            takePictureRequest.set(CaptureRequest.JPEG_ORIENTATION, angle);
            Surface surface = mImageReader.getSurface();
            takePictureRequest.addTarget(surface);
            CaptureRequest request = takePictureRequest.build();
            mCameraCaptureSession.capture(request, null, mChildHandler);
        } catch (CameraAccessException e) {
            e.printStackTrace();
        }

    }

    /**
     * 官方提供的JPEG图片方向算法
     * @param c
     * @param deviceOrientation
     * @return
     */
    private int getJpegOrientation(CameraCharacteristics c, int deviceOrientation) {
          if (deviceOrientation == OrientationEventListener.ORIENTATION_UNKNOWN){
              return 0;
          }
          int sensorOrientation = c.get(CameraCharacteristics.SENSOR_ORIENTATION);//获取传感器方向

          // Round device orientation to a multiple of 90
          deviceOrientation = (deviceOrientation + 45) / 90 * 90;

          // Reverse device orientation for front-facing cameras
          boolean facingFront = c.get(CameraCharacteristics.LENS_FACING) == CameraCharacteristics.LENS_FACING_FRONT;//判断摄像头面向
          if (facingFront) {
              deviceOrientation = -deviceOrientation;
          }

          // Calculate desired JPEG orientation relative to camera orientation to make
          // the image upright relative to the device orientation
          int jpegOrientation = (sensorOrientation + deviceOrientation + 360) % 360;

          return jpegOrientation;
    }



    @Override
    protected void onDestroy() {
        super.onDestroy();
        if (mImageReader != null){
            mImageReader.close();
            mImageReader = null;
        }
        if (mCameraCaptureSession != null){
            stopPreview();
            try {
                mCameraCaptureSession.abortCaptures();
            } catch (CameraAccessException e) {
                e.printStackTrace();
            }
            mCameraCaptureSession.close();
            mCameraCaptureSession = null;
        }
        if (mCaptureRequest != null){
            mCaptureRequest.removeTarget(mSurface);//注意释放mSurface
            mCaptureRequest = null;
        }
        if (mSurface != null){
            mSurface.release();//注意释放mSurface
            mSurface = null;
        }
　　　　//也可以用onSurfaceTextureDestroyed这种方式释放SurfaceTexture 但是在上面的public boolean onSurfaceTextureDestroyed(SurfaceTexture surface) 回调中你需要返回true或者自己执行 surface.release(); 这步资源释放很重要
        mTextureView.getSurfaceTextureListener().onSurfaceTextureDestroyed(mTextureView.getSurfaceTexture()); 
        mCameraDeviceStateCallback = null;
        mCameraCaptureSessionStateCallback = null;
        mCameraCaptureSessionCaptureCallback = null;
        mCameraManager = null;
        if (mCameraDevice != null){
            mCameraDevice.close();
            mCameraDevice = null;
        }
        mCameraManager = null;
       if (mChildHandler != null){
           mChildHandler.removeCallbacksAndMessages(null);
           mChildHandler = null;

       }
    }

}

import android.annotation.SuppressLint;
import android.content.Context;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.ImageFormat;
import android.graphics.SurfaceTexture;
import android.hardware.camera2.CameraAccessException;
import android.hardware.camera2.CameraCaptureSession;
import android.hardware.camera2.CameraCharacteristics;
import android.hardware.camera2.CameraDevice;
import android.hardware.camera2.CameraManager;
import android.hardware.camera2.CameraMetadata;
import android.hardware.camera2.CaptureFailure;
import android.hardware.camera2.CaptureRequest;
import android.hardware.camera2.CaptureResult;
import android.hardware.camera2.TotalCaptureResult;
import android.hardware.camera2.params.StreamConfigurationMap;
import android.media.Image;
import android.media.ImageReader;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.os.HandlerThread;
import android.text.TextUtils;
import android.util.DisplayMetrics;
import android.util.Log;
import android.util.Range;
import android.util.Size;
import android.view.OrientationEventListener;
import android.view.Surface;
import android.view.TextureView;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.Toast;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;

import com.afollestad.materialdialogs.MaterialDialog;
import com.soundcloud.android.crop.Crop;

import net.wt.gate.dev.R;
import net.wt.gate.dev.base.BaseActivity;
import net.wt.gate.dev.constant.FileConstant;
import net.wt.gate.dev.libs.imageHandle.FileImageHandleListener;
import net.wt.gate.dev.libs.imageHandle.ImageHandle;
import net.wt.gate.dev.libs.log.L;
import net.wt.gate.dev.service.state.State;
import net.wt.gate.dev.service.state.StateConfig;
import net.wt.gate.dev.service.state.StateMachine;
import net.wt.gate.dev.util.ButtonDelayUtil;

import java.io.File;
import java.io.FileOutputStream;
import java.nio.ByteBuffer;
import java.util.Arrays;

/**
 * @content:拍照activity
 * @time:2019-9-24
 * @build:
 */

public class CameraTakeActivity extends BaseActivity implements View.OnClickListener {
    private static final String TAG = CameraTakeActivity.class.getSimpleName();
    private File mTempImageSavePath = null;                             //临时拍照图片路径
    private File mTempCropImageSavePath = null;                         //临时裁剪图片路径
    public static final String IMAGE_SAVE_PATH_KEY = "imageSavePath";   //图片保存路径
    public static final String CAMERA_FACING_KEY = "cameraFacing";      //摄像头面向
    public static final String CAMERA_TAKE_RESULT_KEY = "cameraTakeResult";             //回调结果 boolean值 true=成功 false=失败
    public static final String CAMERA_TAKE_RESULT_PATH_KEY = "cameraTakeResultPath";    //回调路径 String值
    public static final int FACING_BACK = 1;                            //后摄像头
    public static final int FACING_FRONT = 2;                           //前摄像头
    public static final int FACING_EXTERNAL = 3;                        //外置摄像头

    private File mImageSavePath = null;
    private Integer mCameraFacing = null;

    private TextureView mTextureView;
    private ImageView mBack     //返回
            , mTake             //拍照
            , mDelete           //删除
            , mSubmit           //确认
            , mCropFinishImage; //裁剪完成image

    private TextureView.SurfaceTextureListener mSurfaceTextureListener;
    private Surface mSurface;
    private MaterialDialog mHandlerImageWaitDialog
            , mCompressionImageWaitDialog;
    private CameraManager mCameraManager;
    private CameraDevice mCameraDevice;
    private ImageReader mImageReader;
    private CaptureRequest.Builder mCaptureRequest;
    private CameraDevice.StateCallback mCameraDeviceStateCallback;
    private CameraCaptureSession.StateCallback mCameraCaptureSessionStateCallback;
    private CameraCaptureSession.CaptureCallback mCameraCaptureSessionCaptureCallback;
    private CameraCaptureSession mCameraCaptureSession;
    private String mCurrentCameraId;
    private Size mCurrentSelectSize;
    private HandlerThread mHandlerThread;
    private Handler mChildHandler;
    private Bitmap mCropBitmap;

    private boolean isRelease = false;
    private boolean isStopPreview = false;
    private boolean isCroping = false;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        getIntentData();
        initPath();
        initChildThread();
        initCameraManager();
        if (!initSelectCamera()) {
            Toast.makeText(CameraTakeActivity.this, R.string.this_device_camera_is_unavailable, Toast.LENGTH_SHORT).show();
            Intent intent = new Intent();
            intent.putExtra(CAMERA_TAKE_RESULT_KEY, false);
            setResult(RESULT_OK, intent);
            finish();
            return;
        }
        initHandlerMatchingSize();
        initImageReader();
        initTextureViewListener();
        initCameraDeviceStateCallbackListener();
        initCameraCaptureSessionStateCallbackListener();
        initCameraCaptureSessionCaptureCallbackListener();
    }

    @Override
    protected int getLayoutID() {
        return R.layout.activity_camera_take;
    }

    @Override
    protected void initViews() {
        mBack = findViewById(R.id.back);
        mTextureView = findViewById(R.id.texture_view);
        mTake = findViewById(R.id.take);
        mDelete = findViewById(R.id.delete);
        mSubmit = findViewById(R.id.submit);
        mCropFinishImage = findViewById(R.id.crop_finish_image);
        mDelete.setOnClickListener(this);
        mSubmit.setOnClickListener(this);
        mBack.setOnClickListener(this);
        mTake.setOnClickListener(this);

    }

    @Override
    public void onClick(View v) {
        switch (v.getId()) {
            case R.id.take:
                if (ButtonDelayUtil.isFastClick()) {
                    handlerImageWaitDialog().show();
                    takePicture();
                    stopPreview();
                }
                break;

            case R.id.back:
                finish();
                break;

            case R.id.delete:
                if (ButtonDelayUtil.isFastClick()) {
                    if (mTempImageSavePath.exists()) {
                        mTempImageSavePath.delete();
                    }
                    mTake.setVisibility(View.VISIBLE);
                    mDelete.setVisibility(View.GONE);
                    mSubmit.setVisibility(View.GONE);
                    startPreview();

                }
                break;

            case R.id.submit:
                if (ButtonDelayUtil.isFastClick()) {
                    isCroping = true;
                    Uri inputFileUri = Uri.fromFile(mTempImageSavePath);
                    Uri outputFileUri = Uri.fromFile(mTempCropImageSavePath);
                    mTake.setVisibility(View.GONE);
                    mSubmit.setVisibility(View.GONE);
                    mDelete.setVisibility(View.GONE);
                    mTextureView.setVisibility(View.GONE);
                    mCropFinishImage.setVisibility(View.VISIBLE);
                    Crop.of(inputFileUri, outputFileUri).asSquare().start(CameraTakeActivity.this);

                }
                break;

            default:
                break;
        }

    }

    private void getIntentData() {
        Intent intentData = getIntent();
        String path = intentData.getStringExtra(IMAGE_SAVE_PATH_KEY);
        if (TextUtils.isEmpty(path)) {
            L.ee(TAG, "您没有传入图片保存地址");
            Intent intent = new Intent();
            intent.putExtra(CAMERA_TAKE_RESULT_KEY, false);
            setResult(RESULT_OK, intent);
            finish();
        }
        mImageSavePath = new File(path);
        mCameraFacing = intentData.getIntExtra(CAMERA_FACING_KEY, 0);
        if (mCameraFacing == 0) {
            L.ee(TAG, "您没有传入需要使用的摄像头");
            Intent intent = new Intent();
            intent.putExtra(CAMERA_TAKE_RESULT_KEY, false);
            setResult(RESULT_OK, intent);
            finish();
        }
    }

    /**
     * 初始化路径
     */
    private void initPath() {
        mTempImageSavePath = new File(FileConstant.CAMERA_TAKE_TEMP_IMAGE_FILE);
        mTempCropImageSavePath = new File(FileConstant.TEMP_CROP_IMAGE_FILE);
        if (!mTempImageSavePath.getParentFile().isDirectory()) {
            mTempImageSavePath.getParentFile().mkdirs();
        }
        if (!mTempCropImageSavePath.getParentFile().isDirectory()) {
            mTempCropImageSavePath.getParentFile().mkdirs();
        }
        if (!mImageSavePath.getParentFile().isDirectory()) {
            mImageSavePath.getParentFile().mkdirs();
        }
        if (mTempImageSavePath.exists()) {
            mTempImageSavePath.delete();
        }
        if (mTempCropImageSavePath.exists()) {
            mTempCropImageSavePath.delete();
        }
        if (mImageSavePath.exists()){
            mImageSavePath.delete();
        }
    }

    private void initChildThread() {
        mHandlerThread = new HandlerThread("faceCamera");
        mHandlerThread.start();
        mChildHandler = new Handler(mHandlerThread.getLooper());

    }


    /**
     * 初始化相机管理
     */
    private void initCameraManager() {
        mCameraManager = (CameraManager) getSystemService(Context.CAMERA_SERVICE);
    }


    /**
     * 初始化选择摄像头
     *
     * @return ture=初始化成功 false=初始化失败
     */
    private boolean initSelectCamera() {
        try {
            String[] cameraIdArray = mCameraManager.getCameraIdList();
            Loop:for (String itemId : cameraIdArray) {
                CameraCharacteristics itemCharacteristics = mCameraManager.getCameraCharacteristics(itemId);
                Integer facing = itemCharacteristics.get(CameraCharacteristics.LENS_FACING);
                switch (mCameraFacing){
                    case FACING_BACK:
                        if (facing == CameraCharacteristics.LENS_FACING_BACK) {
                            mCurrentCameraId = itemId;
                            break Loop;
                        }
                        break;
                    case FACING_FRONT:
                        if (facing == CameraCharacteristics.LENS_FACING_FRONT) {
                            mCurrentCameraId = itemId;
                            break Loop;
                        }
                        break;
                    case FACING_EXTERNAL:
                        if (facing == CameraCharacteristics.LENS_FACING_EXTERNAL) {
                            mCurrentCameraId = itemId;
                            break Loop;
                        }
                        break;
                    default:
                        break;
                }


            }
        } catch (CameraAccessException e) {
            e.printStackTrace();
        }
        if (mCurrentCameraId == null) {
            return false;
        }
        return true;

    }

    /**
     * 初始化计算适合当前屏幕分辨率的拍照分辨率
     *
     * @return
     */
    private void initHandlerMatchingSize() {
        try {
            CameraCharacteristics cameraCharacteristics = mCameraManager.getCameraCharacteristics(mCurrentCameraId);
            StreamConfigurationMap streamConfigurationMap = cameraCharacteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
            Size[] sizes = streamConfigurationMap.getOutputSizes(ImageFormat.JPEG);
            DisplayMetrics displayMetrics = getResources().getDisplayMetrics();
            int deviceWidth = displayMetrics.widthPixels;
            int deviceHeigh = displayMetrics.heightPixels;
            for (int j = 1; j < 81; j++) {
                for (int i = 0; i < sizes.length; i++) {
                    Size itemSize = sizes[i];
                    if (itemSize.getHeight() < (deviceWidth + j * 5) && itemSize.getHeight() > (deviceWidth - j * 5)) {
                        if (mCurrentSelectSize != null) { //如果之前已经找到一个匹配的宽度
                            if (Math.abs(deviceHeigh - itemSize.getWidth()) < Math.abs(deviceHeigh - mCurrentSelectSize.getWidth())) { //求绝对值算出最接近设备高度的尺寸
                                mCurrentSelectSize = itemSize;
                            }
                        } else {
                            mCurrentSelectSize = itemSize;
                        }

                    }
                }
            }
        } catch (CameraAccessException e) {
            e.printStackTrace();
        }
        ViewGroup.LayoutParams layoutParams = mTextureView.getLayoutParams();
        layoutParams.height = mCurrentSelectSize.getWidth();
        mTextureView.setLayoutParams(layoutParams);
    }

    private void initImageReader() {
        mImageReader = ImageReader.newInstance(mCurrentSelectSize.getWidth()
                , mCurrentSelectSize.getHeight()
                , ImageFormat.JPEG
                , 1);

        mImageReader.setOnImageAvailableListener(new ImageReader.OnImageAvailableListener() {
            @Override
            public void onImageAvailable(ImageReader reader) {
                Image image = reader.acquireLatestImage();
                ByteBuffer byteBuffer = image.getPlanes()[0].getBuffer();
                byte[] bytes = new byte[byteBuffer.remaining()];
                byteBuffer.get(bytes);
                try {
                    FileOutputStream fileOutputStream = new FileOutputStream(mTempImageSavePath);
                    fileOutputStream.write(bytes);
                    fileOutputStream.flush();
                    fileOutputStream.close();
                    image.close();
                    runOnUiThread(new Runnable() {
                        @Override
                        public void run() {
                            mTake.setVisibility(View.GONE);
                            mDelete.setVisibility(View.VISIBLE);
                            mSubmit.setVisibility(View.VISIBLE);
                            handlerImageWaitDialog().dismiss();
                        }
                    });

                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        }, mChildHandler);
    }

    private void initTextureViewListener() {
        mSurfaceTextureListener = new TextureView.SurfaceTextureListener() {
            @Override
            public void onSurfaceTextureAvailable(SurfaceTexture surface, int width, int height) {
                openCamera();

            }

            @Override
            public void onSurfaceTextureSizeChanged(SurfaceTexture surface, int width, int height) {

            }

            @Override
            public boolean onSurfaceTextureDestroyed(SurfaceTexture surface) {
                surface.release();
                return true;
            }

            @Override
            public void onSurfaceTextureUpdated(SurfaceTexture surface) {

            }
        };
        mTextureView.setSurfaceTextureListener(mSurfaceTextureListener);
    }

    private void initCameraDeviceStateCallbackListener() {
        mCameraDeviceStateCallback = new CameraDevice.StateCallback() {
            @Override
            public void onOpened(@NonNull CameraDevice camera) {
                //相机开启
                mCameraDevice = camera;
                try {
                    SurfaceTexture surfaceTexture = mTextureView.getSurfaceTexture();
                    surfaceTexture.setDefaultBufferSize(mCurrentSelectSize.getWidth(), mCurrentSelectSize.getHeight());
                    mSurface = new Surface(surfaceTexture);
                    mCaptureRequest = mCameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_PREVIEW);
                    mCaptureRequest.set(CaptureRequest.CONTROL_AE_TARGET_FPS_RANGE, getRange());
                    mCaptureRequest.set(CaptureRequest.CONTROL_AE_LOCK, false);
                    mCaptureRequest.set(CaptureRequest.CONTROL_AF_MODE, CaptureRequest.CONTROL_AE_PRECAPTURE_TRIGGER_START);
                    mCaptureRequest.set(CaptureRequest.CONTROL_AF_MODE, CameraMetadata.CONTROL_AF_MODE_OFF);//关闭自动对焦
                    mCaptureRequest.addTarget(mSurface);
                    mCameraDevice.createCaptureSession(Arrays.asList(mSurface, mImageReader.getSurface())
                            , mCameraCaptureSessionStateCallback
                            , mChildHandler);

                } catch (CameraAccessException e) {
                    e.printStackTrace();
                }

            }

            @Override
            public void onDisconnected(@NonNull CameraDevice camera) {

            }

            @Override
            public void onError(@NonNull CameraDevice camera, int error) {
                Intent intent = new Intent();
                intent.putExtra(CAMERA_TAKE_RESULT_KEY, false);
                setResult(RESULT_OK, intent);
                finish();
                Toast.makeText(CameraTakeActivity.this, "相机打开失败", Toast.LENGTH_SHORT).show();

            }
        };
    }


    private void initCameraCaptureSessionStateCallbackListener() {
        mCameraCaptureSessionStateCallback = new CameraCaptureSession.StateCallback() {
            @Override
            public void onConfigured(@NonNull CameraCaptureSession session) {
                mCameraCaptureSession = session;
                startPreview();

            }

            @Override
            public void onConfigureFailed(@NonNull CameraCaptureSession session) {
                Intent intent = new Intent();
                intent.putExtra(CAMERA_TAKE_RESULT_KEY, false);
                setResult(RESULT_OK, intent);
                finish();
                Toast.makeText(CameraTakeActivity.this, "相机打开失败", Toast.LENGTH_SHORT).show();

            }
        };
    }

    private void initCameraCaptureSessionCaptureCallbackListener() {
        mCameraCaptureSessionCaptureCallback = new CameraCaptureSession.CaptureCallback() {
            @Override
            public void onCaptureStarted(@NonNull CameraCaptureSession session, @NonNull CaptureRequest request, long timestamp, long frameNumber) {
                super.onCaptureStarted(session, request, timestamp, frameNumber);
                //获取开始
            }

            @Override
            public void onCaptureProgressed(@NonNull CameraCaptureSession session, @NonNull CaptureRequest request, @NonNull CaptureResult partialResult) {
                super.onCaptureProgressed(session, request, partialResult);
                //获取中
            }

            @Override
            public void onCaptureCompleted(@NonNull CameraCaptureSession session, @NonNull CaptureRequest request, @NonNull TotalCaptureResult result) {
                super.onCaptureCompleted(session, request, result);
                //获取结束
            }

            @Override
            public void onCaptureFailed(@NonNull CameraCaptureSession session, @NonNull CaptureRequest request, @NonNull CaptureFailure failure) {
                super.onCaptureFailed(session, request, failure);
                //获取失败


            }
        };
    }

    @SuppressLint("MissingPermission")
    private void openCamera() {
        try {
            mCameraManager.openCamera(mCurrentCameraId, mCameraDeviceStateCallback, mChildHandler);
        } catch (CameraAccessException e) {
            e.printStackTrace();
        }
    }


    private MaterialDialog handlerImageWaitDialog() {
        if (mHandlerImageWaitDialog == null) {
            mHandlerImageWaitDialog = new MaterialDialog.Builder(this)
                    .content("正在处理图像中...")
                    .progress(true, -1)
                    .cancelable(false)
                    .build();
        }
        return mHandlerImageWaitDialog;
    }

    private MaterialDialog compressionImageWaitDialog() {
        if (mCompressionImageWaitDialog == null) {
            mCompressionImageWaitDialog = new MaterialDialog.Builder(this)
                    .content("压缩图像中...")
                    .progress(true, -1)
                    .cancelable(false)
                    .build();
        }
        return mCompressionImageWaitDialog;
    }

    /**
     * 开始预览
     */
    private void startPreview() {
        try {
            mCameraCaptureSession.setRepeatingRequest(mCaptureRequest.build(), mCameraCaptureSessionCaptureCallback, mChildHandler);
        } catch (CameraAccessException e) {
            e.printStackTrace();
        }
    }

    /**
     * 停止预览
     */
    private void stopPreview() {
        try {
            mCameraCaptureSession.stopRepeating();
        } catch (CameraAccessException e) {
            e.printStackTrace();
        }

    }


    /**
     * 拍照
     */
    private void takePicture() {
        try {
            CaptureRequest.Builder takePictureRequest = mCameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_STILL_CAPTURE);
            mCaptureRequest.set(CaptureRequest.CONTROL_AE_TARGET_FPS_RANGE, getRange());//This line of code is used for adjusting the fps range and fixing the dark preview
            mCaptureRequest.set(CaptureRequest.CONTROL_AE_LOCK, false);
            mCaptureRequest.set(CaptureRequest.CONTROL_AF_MODE, CaptureRequest.CONTROL_AE_PRECAPTURE_TRIGGER_START);
            mCaptureRequest.set(CaptureRequest.CONTROL_AF_MODE, CameraMetadata.CONTROL_AF_MODE_OFF);//关闭自动对焦
            int rotation = getWindowManager().getDefaultDisplay().getRotation();
            int angle = getJpegOrientation(mCameraManager.getCameraCharacteristics(mCurrentCameraId), rotation);
            takePictureRequest.set(CaptureRequest.JPEG_ORIENTATION, angle);
            Surface surface = mImageReader.getSurface();
            takePictureRequest.addTarget(surface);
            CaptureRequest request = takePictureRequest.build();
            if (mCameraCaptureSession != null) {
                mCameraCaptureSession.capture(request, null, mChildHandler);
            }else {
                Toast.makeText(context, "拍照异常", Toast.LENGTH_SHORT).show();
                finish();
            }
        } catch (CameraAccessException e) {
            e.printStackTrace();
        }

    }

    /**
     * 官方提供的JPEG图片方向算法
     *
     * @param c
     * @param deviceOrientation
     * @return
     */
    private int getJpegOrientation(CameraCharacteristics c, int deviceOrientation) {
        if (deviceOrientation == OrientationEventListener.ORIENTATION_UNKNOWN) {
            return 0;
        }
        int sensorOrientation = c.get(CameraCharacteristics.SENSOR_ORIENTATION);//获取传感器方向

        // Round device orientation to a multiple of 90
        deviceOrientation = (deviceOrientation + 45) / 90 * 90;

        // Reverse device orientation for front-facing cameras
        boolean facingFront = c.get(CameraCharacteristics.LENS_FACING) == CameraCharacteristics.LENS_FACING_FRONT;//判断摄像头方向
        if (facingFront) {
            deviceOrientation = -deviceOrientation;
        }

        // Calculate desired JPEG orientation relative to camera orientation to make
        // the image upright relative to the device orientation

        return (sensorOrientation + deviceOrientation + 360) % 360;
    }

    /**
     * 获取曝光范围
     *
     * @return
     */
    private Range<Integer> getRange() {
        CameraCharacteristics chars = null;
        try {
            chars = mCameraManager.getCameraCharacteristics(mCurrentCameraId);
        } catch (CameraAccessException e) {
            e.printStackTrace();
        }
        Range<Integer>[] ranges = chars.get(CameraCharacteristics.CONTROL_AE_AVAILABLE_TARGET_FPS_RANGES);

        Range<Integer> result = null;

        for (Range<Integer> range : ranges) {
            //帧率不能太低，大于10
            if (range.getLower() < 10)
                continue;
            if (result == null)
                result = range;
                //FPS下限小于15，弱光时能保证足够曝光时间，提高亮度。range范围跨度越大越好，光源足够时FPS较高，预览更流畅，光源不够时FPS较低，亮度更好。
            else if (range.getLower() <= 15 && (range.getUpper() - range.getLower()) > (result.getUpper() - result.getLower()))
                result = range;
        }
        return result;
    }

    /**
     * 压缩图片
     */
    private void compressionImage() {
        ImageHandle.fileImageConfig(mTempCropImageSavePath, mImageSavePath)
                .setTargetKB(30)
                .setHandleListener(new FileImageHandleListener() {
                    @Override
                    public boolean onReady(File inpFile, File outFile) {
                        return true;
                    }

                    @Override
                    public void onSuccess() {
                        Log.e(TAG, "onFailure: 图片压缩成功");
                        runOnUiThread(new Runnable() {
                            @Override
                            public void run() {
                                compressionImageWaitDialog().dismiss();
                                Intent intent = new Intent();
                                intent.putExtra(CAMERA_TAKE_RESULT_KEY, true);
                                intent.putExtra(CAMERA_TAKE_RESULT_PATH_KEY, mImageSavePath.toString());
                                setResult(RESULT_OK, intent);
                                CameraTakeActivity.this.finish();
                            }
                        });

                    }

                    @Override
                    public void onFailure(String text) {
                        Log.e(TAG, "onFailure: 失败原因=" + text);

                        runOnUiThread(new Runnable() {
                            @Override
                            public void run() {
                                compressionImageWaitDialog().dismiss();
                                Toast.makeText(CameraTakeActivity.this, "压缩失败", Toast.LENGTH_SHORT).show();
                                Intent intent = new Intent();
                                intent.putExtra(CAMERA_TAKE_RESULT_KEY, false);
                                setResult(RESULT_OK, intent);
                                CameraTakeActivity.this.finish();
                            }
                        });

                    }

                    @Override
                    public void onError(Exception e) {
                        Log.e(TAG, "onFailure: 失败原因=" + e);
                        runOnUiThread(new Runnable() {
                            @Override
                            public void run() {
                                compressionImageWaitDialog().dismiss();
                                Toast.makeText(CameraTakeActivity.this, "压缩失败", Toast.LENGTH_SHORT).show();
                                Intent intent = new Intent();
                                intent.putExtra(CAMERA_TAKE_RESULT_KEY, false);
                                setResult(RESULT_OK, intent);
                                CameraTakeActivity.this.finish();
                            }
                        });

                    }
                }).build();
    }


    @Override
    protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (requestCode == Crop.REQUEST_CROP && resultCode == RESULT_OK) {
            compressionImageWaitDialog().show();
            mTake.setVisibility(View.GONE);
            mSubmit.setVisibility(View.GONE);
            mDelete.setVisibility(View.GONE);
            mTextureView.setVisibility(View.GONE);
            mCropFinishImage.setVisibility(View.VISIBLE);
            mCropBitmap = BitmapFactory.decodeFile(mTempCropImageSavePath.getAbsolutePath());
            mCropFinishImage.setImageBitmap(mCropBitmap);
            compressionImage();
            return;
        }
        if (requestCode == Crop.REQUEST_CROP && resultCode == RESULT_CANCELED){
            Toast.makeText(this, R.string.cancel_cropping, Toast.LENGTH_SHORT).show();
        }else {
            Toast.makeText(this, R.string.unknown_exception_cropping_failed, Toast.LENGTH_SHORT).show();
        }
        Intent intent = new Intent();
        intent.putExtra(CAMERA_TAKE_RESULT_KEY, false);
        setResult(RESULT_OK, intent);
        CameraTakeActivity.this.finish();
    }

    private void release(){
        if (isRelease){
            return;
        }
        if (isFinishing()){
            if (mTempImageSavePath != null && mTempImageSavePath.exists()) {
                mTempImageSavePath.delete();
            }
            if (mTempCropImageSavePath != null && mTempCropImageSavePath.exists()) {
                mTempCropImageSavePath.delete();
            }
            if (mImageReader != null) {
                mImageReader.close();
                mImageReader = null;
            }
            if (mCameraCaptureSession != null) {
                mCameraCaptureSession.close();
                mCameraCaptureSession = null;
            }
            if (mCameraDevice != null) {
                mCameraDevice.close();
                mCameraDevice = null;
            }
            if (mCaptureRequest != null){
                mCaptureRequest.removeTarget(mSurface);
                mCaptureRequest = null;

            }
            if (mSurface != null){
                mSurface.release();
                mSurface = null;
            }
            if (mTextureView.getSurfaceTextureListener() != null) {
                mTextureView.getSurfaceTextureListener().onSurfaceTextureDestroyed(mTextureView.getSurfaceTexture());
            }
            mCameraDeviceStateCallback = null;
            mCameraCaptureSessionStateCallback = null;
            mCameraCaptureSessionCaptureCallback = null;
            mCameraManager = null;
            mSurfaceTextureListener = null;
            if (mChildHandler != null) {
                mChildHandler.removeCallbacksAndMessages(null);
                mChildHandler = null;

            }
            if (mHandlerThread != null){
                mHandlerThread.quitSafely();
                mHandlerThread = null;
            }
            if (mCompressionImageWaitDialog != null) {
                mCompressionImageWaitDialog.dismiss();
                mCompressionImageWaitDialog = null;
            }
            if (mHandlerImageWaitDialog != null) {
                mHandlerImageWaitDialog.dismiss();
                mHandlerImageWaitDialog = null;
            }
            mCropFinishImage.setImageDrawable(null);
            if (mCropBitmap != null) {
                mCropBitmap.recycle();
                mCropBitmap = null;
            }
            StateMachine.instance().finishExit(StateConfig.TAKE_PICTURE_KEY);
            isRelease = true;
        }
    }

    @Override
    protected void onResume() {
        super.onResume();
        if (isCroping){
            return;
        }
        if (isStopPreview){
            if (mCameraCaptureSession == null || !mCameraCaptureSession.isReprocessable()){
                finish();
                return;
            }
            startPreview();
        }
    }

    @Override
    protected void onPause() {
        super.onPause();
        if(isFinishing()){
            release();
        }else {
            isStopPreview = true;
            stopPreview();
        }
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        release();
    }

}