调用相机和相册
调用照相机和相册
直接下代码看吧。。
第二个包是对照片进行剪裁等操作
直接下代码看吧。。
public class testCarema extends Activity { /** Called when the activity is first created. */ private ImageView imageView; private OnClickListener imgViewListener; private Bitmap myBitmap; private byte[] mContent; @ Override public void onCreate ( Bundle savedInstanceState ) { super.onCreate(savedInstanceState); setContentView(R.layout.main); imageView = (ImageView) findViewById(R.id.imageView); imgViewListener = new OnClickListener() { public void onClick ( View v ) { final CharSequence[] items = { "相册", "拍照" }; AlertDialog dlg = new AlertDialog.Builder(testCarema.this).setTitle("选择图片").setItems(items, new DialogInterface.OnClickListener() { public void onClick ( DialogInterface dialog , int item ) { // 这里item是根据选择的方式, // 在items数组里面定义了两种方式,拍照的下标为1所以就调用拍照方法 if (item == 1) { Intent getImageByCamera = new Intent("android.media.action.IMAGE_CAPTURE"); startActivityForResult(getImageByCamera, 1); } else { Intent getImage = new Intent(Intent.ACTION_GET_CONTENT); getImage.addCategory(Intent.CATEGORY_OPENABLE); getImage.setType("image/jpeg"); startActivityForResult(getImage, 0); } } }).create(); dlg.show(); } }; // 给imageView控件绑定点点击监听器 imageView.setOnClickListener(imgViewListener); } @ Override protected void onActivityResult ( int requestCode , int resultCode , Intent data ) { // TODO Auto-generated method stub super.onActivityResult(requestCode, resultCode, data); ContentResolver resolver = getContentResolver(); /** * 因为两种方式都用到了startActivityForResult方法, * 这个方法执行完后都会执行onActivityResult方法, 所以为了区别到底选择了那个方式获取图片要进行判断, * 这里的requestCode跟startActivityForResult里面第二个参数对应 */ if (requestCode == 0) { try { // 获得图片的uri Uri originalUri = data.getData(); // 将图片内容解析成字节数组 mContent = readStream(resolver.openInputStream(Uri.parse(originalUri.toString()))); // 将字节数组转换为ImageView可调用的Bitmap对象 myBitmap = getPicFromBytes(mContent, null); // //把得到的图片绑定在控件上显示 imageView.setImageBitmap(myBitmap); } catch ( Exception e ) { System.out.println(e.getMessage()); } } else if (requestCode == 1) { try { super.onActivityResult(requestCode, resultCode, data); Bundle extras = data.getExtras(); myBitmap = (Bitmap) extras.get("data"); ByteArrayOutputStream baos = new ByteArrayOutputStream(); myBitmap.compress(Bitmap.CompressFormat.JPEG, 100, baos); mContent = baos.toByteArray(); } catch ( Exception e ) { // TODO Auto-generated catch block e.printStackTrace(); } // 把得到的图片绑定在控件上显示 imageView.setImageBitmap(myBitmap); } } public static Bitmap getPicFromBytes ( byte[] bytes , BitmapFactory.Options opts ) { if (bytes != null) if (opts != null) return BitmapFactory.decodeByteArray(bytes, 0, bytes.length, opts); else return BitmapFactory.decodeByteArray(bytes, 0, bytes.length); return null; } public static byte[] readStream ( InputStream inStream ) throws Exception { byte[] buffer = new byte[1024]; int len = -1; ByteArrayOutputStream outStream = new ByteArrayOutputStream(); while ((len = inStream.read(buffer)) != -1) { outStream.write(buffer, 0, len); } byte[] data = outStream.toByteArray(); outStream.close(); inStream.close(); return data; } }
通过相册拿到图片路径等信息 Uri uri = data.getData(); Cursor cursor = getContentResolver().query(uri, null, null, null, null); cursor.moveToFirst(); String imgNo = cursor.getString(0); //图片编号 String imgPath = cursor.getString(1); //图片文件路径 String imgSize = cursor.getString(2); //图片大小 String imgName = cursor.getString(3); //图片文件名
第二个包是对照片进行剪裁等操作