Android 自定义进度条
Android 自定义进度条，
onDraw方法用来绘制我们需要的东西，任何东西，bitmap、线、矩形、路径、等等。
这里通常处理跟控件宽高有关的数值。
这个方法，我们就可以用任何颜色的画笔，在任何位置绘制矩形。
既然是拖拽，肯定是ontouch方法来处理业务。
这样，就能实现拖拽的效果了，当然功能不止这些，放开脑洞，当基础条件具备时，一切都可以set和get。
That‘s all。
最近工作繁忙，一直都埋头在工作中，也不知这么热心工作究竟是为了什么，不知不觉的，到今天才晓得夏天已经来了。天气热，心也热。
网络上出个牛人，辞职信上写着：世界那么大，我想去看看。由衷的佩服她的勇气，我也想去看看这大千世界，可惜我们总是身不由己，有太多的放不下，或许哪天放下了，我也出去走走。
之前一直以为罗永浩是个逗比，直到前两天看了他几期演讲，才发现逗比一直是我。他有句话我很欣赏，这里也分享给大家：在什么样的年纪，就做什么样的事情，怎么能在每个阶段都做错呢！PS:该玩的年纪玩，该谈恋爱的年纪谈恋爱，该成家立业担起一个家的年纪就要挺起胸膛，总不能错过玩的年纪，错过谈恋爱的年纪，而成家后却又搞外遇，怎么能在每个阶段都做错呢？
在我有那个勇气也在辞职信上写着“世界那么大，我也想去看看！”之前，还是要把眼前的事情做完，现在开始规划。
正文
Android进度条是很多人都接触到的，然而面对各种各样的需求时，原生的很多东西都满足不了我们的需要，在各种压迫下，大家都选择自定义来解决问题。今天给大家介绍一下自定义进度条。
提到自定义，这曾经一直是使我头疼的问题，看过很多大牛的源码之后，发现一个道理，有些代码不应该记住，而有些代码也不应该忘记。所以我决定，今天的博客里给大家分享方法。（其实是代码逻辑实在是太糟糕了，我写过后回头看的时候都不知道自己为什么那么写，而且还必须那么写，哈哈。）
首先我们要知道自定义View中那些方法是我们需要用到的。
构造方法：
构造方法是必不可少的，所有在View对象一出来就需要存在的都要在这里初始化。这里就不多说了。
onDraw
@Override
protected void onDraw(Canvas canvas) {
// TODO Auto-generated method stub
super.onDraw(canvas);
}
onDraw方法用来绘制我们需要的东西，任何东西，bitmap、线、矩形、路径、等等。
onSizeChanged
@Override
protected void onSizeChanged(int w, int h, int oldw, int oldh) {
// TODO Auto-generated method stub
super.onSizeChanged(w, h, oldw, oldh);
}
这里通常处理跟控件宽高有关的数值。
以上这三个，就可以完成常规的自定义组件，往往我们的业务逻辑上，需要加上很多事件，比如onclick，ontouch等。用到这些事件监听时，通常需要invalidate方法来在需要的时候刷新界面。
需要注意的是，每个方法的执行顺序，建议大家自己用log日志实验一下。方便记忆。
接下来开始贴代码，现在大多数需求都是圆角进度条，这里也以此为例。
onDraw方法是用来绘制任何我们需要的东西的，所以进度条也在此绘制，我将进度条矩形抽取出一个方法，方便复用。
/**
* 绘制矩形
*
* @param canvas
* @param paint
* @param left
* 左
* @param top
* 上
* @param right
* 右
* @param bottom
* 下
*/
private void drawRect(Canvas canvas, Paint paint, float left, float top, float right, float bottom) {
RectF rectF = new RectF(left, top, right, bottom);
if (isRoundRect) {
canvas.drawRoundRect(rectF, mRadius, mRadius, paint);
} else {
canvas.drawRect(rectF, paint);
}
}
这个方法，我们就可以用任何颜色的画笔，在任何位置绘制矩形。
好了，我们的自定义进度条讲完了。
但是这也就是纯粹的进度条了，需要对应的set和get方法来设置和获取值。set后，记得调用invalidate方法来重绘界面。
我的进度条有拖拽功能，先绘制拖拽的圆圈。
/**
* 绘制拖动点
* @param canvas
*/
private void drawDragClick(Canvas canvas) {
mDragClickPaint.setColor(Color.BLACK);
RectF oval = new RectF(mAboveProgressWidth - mDragClickPaintRadius, mStartY + mProgressRealHeight/2 - mDragClickPaintRadius, mAboveProgressWidth + mDragClickPaintRadius, mStartY + mProgressRealHeight/2 + mDragClickPaintRadius);
canvas.drawOval(oval, mDragClickPaint);
mDragClickPaint.setColor(Color.WHITE);
RectF oval2 = new RectF(mAboveProgressWidth - mDragClickPaintRadius + 1, mStartY + mProgressRealHeight/2 - mDragClickPaintRadius + 1, mAboveProgressWidth + mDragClickPaintRadius - 1, mStartY + mProgressRealHeight/2 + mDragClickPaintRadius - 1);
canvas.drawOval(oval2, mDragClickPaint);
}
既然是拖拽，肯定是ontouch方法来处理业务。
private boolean isActionUp;
@Override
public boolean onTouch(View v, MotionEvent event) {
int code = event.getAction();
// Log.i("progress", "onTouch"+mAboveProgressWidth);
switch (code) {
case MotionEvent.ACTION_DOWN:
isActionUp = false;
setOnTouchInit(event);
break;
case MotionEvent.ACTION_CANCEL:
case MotionEvent.ACTION_UP:
isActionUp = true;
setOnTouchInit(event);
break;
case MotionEvent.ACTION_MOVE:
isActionUp = false;
setOnTouchInit(event);
break;
}
return true;
}
/**
* 触摸时设置边界
*/
private void setOnTouchInit(MotionEvent event){
if (isTransfer) {
if (event.getX() < mDragClickPaintRadius) {
mAboveProgressWidth = mDragClickPaintRadius;
}else if (event.getX() > mCenterProgressWidth) {
mAboveProgressWidth = mCenterProgressWidth;
// Log.i("progress", "onTouch"+mAboveProgressWidth + "***" + mCenterProgressWidth);
}else {
mAboveProgressWidth = event.getX();
}
}else {
if (event.getX() < mDragClickPaintRadius) {
mAboveProgressWidth = mDragClickPaintRadius;
}else if (event.getX() > mWidth - mDragClickPaintRadius) {
mAboveProgressWidth = mWidth - mDragClickPaintRadius;
}else {
mAboveProgressWidth = event.getX();
}
}
mFirstValue = mMaxValue *( mAboveProgressWidth - mDragClickPaintRadius) / mDrawScaleWidth;
if (mDragListener != null && isActionUp) {
mDragListener.onDrag(this, getmFirstValue());
}
invalidate();
}
这样，就能实现拖拽的效果了，当然功能不止这些，放开脑洞，当基础条件具备时，一切都可以set和get。
贴上全部的控件代码
package com.qiyuan.activity.view;
import java.util.Collections;
import java.util.List;
import android.R.integer;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Paint.FontMetrics;
import android.graphics.RectF;
import android.util.AttributeSet;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;
import android.view.View.OnClickListener;
/**
* 可以拖动的进度条
*
* @author lizhipeng
*
*/
public class CanDragProgressView extends View implements OnTouchListener,OnClickListener{
private int mWidth, mHeight;// 整个的宽和高
private long mDrawScaleWidth;// 画刻度时用的宽度（两边减去拖动点半径的宽度）
private int mScaleHeight = 10;// 刻度线的高度
private int mProgressHeight;// 进度条的相对高度
private float mProgressRealHeight = 40;//进度条真实高度
private int mAverageScaleNumber = 10;// 设置均分刻度的个数（多少个单位）
private int mScaleLineWidth, mScalerLineHeight;// 刻度线宽高
private int mRadius;// 进度条圆角半径
private float mDragClickPaintRadius;// 拖动点半径
private float mStartX;
private float mStartY = 5;
private float mFirstValue;//显示在拖动条上的值
private float mSecondValue;//第二个值
private float mBgProgressWidth, mCenterProgressWidth, mAboveProgressWidth;// 背景、中间、上层进度条宽度（长度）
private Paint mBackgroundPaint, mCenterPaint, mAbovePaint, mScalePaint, mDragClickPaint;// 背景画笔，中间层画笔，上层画笔、刻度线、拖动点
private boolean isRoundRect = true;// 是否是圆角矩形
private boolean isAverageScale = true;// 是否均分刻度,如果不均分刻度，需要用设置刻度的集合mScaleList
private boolean isDrawScaleUp = false;// 绘制刻度在进度条上或者下，默认是下
private boolean isDrawScale = true;// 是否绘制刻度
private boolean isDrawCenterScale = false;// 是否绘制中间部分的刻度
private boolean isTransfer = false;// 是否是Transfer界面
private float mMaxValue;//最大值
private List<Float> mScaleList;
private DragListener mDragListener;//滑动监听
public interface DragListener{
public void onDrag(CanDragProgressView view,float value);
}
public DragListener getmDragListener() {
return mDragListener;
}
public void setmDragListener(DragListener mDragListener) {
this.mDragListener = mDragListener;
}
public boolean isTransfer() {
return isTransfer;
}
public void setTransfer(boolean isTransfer) {
this.isTransfer = isTransfer;
invalidate();
}
public boolean isDrawCenterScale() {
return isDrawCenterScale;
}
public void setDrawCenterScale(boolean isDrawCenterScale) {
this.isDrawCenterScale = isDrawCenterScale;
invalidate();
}
public float getmSecondValue() {
return mSecondValue;
}
public void setmSecondValue(float mSecondValue) {
this.mSecondValue = mSecondValue;
invalidate();
}
public float getmFirstValue() {
return Float.parseFloat(String.format("%1.2f", mFirstValue));
}
public void setmFirstValue(float mValue) {
this.mFirstValue = mValue;
invalidate();
}
public List<Float> getmScaleList() {
return mScaleList;
}
public void setmScaleList(List<Float> list) {
Collections.sort(list);
this.mScaleList = list;
invalidate();
}
public float getmProgressRealHeight() {
return mProgressRealHeight;
}
public void setmProgressRealHeight(float mProgressRealHeight) {
this.mProgressRealHeight = mProgressRealHeight;
invalidate();
}
public void setmScaleHeight(int mScaleHeight) {
this.mScaleHeight = mScaleHeight;
invalidate();
}
public boolean isDrowScaleUp() {
return isDrawScaleUp;
}
public void setDrowScaleUp(boolean isDrowScaleUp) {
this.isDrawScaleUp = isDrowScaleUp;
mStartY = mScaleHeight + getFontHeight(mScalePaint) + 5;
invalidate();
}
public int getmAverageScaleNumber() {
return mAverageScaleNumber;
}
public void setmAverageScaleNumber(int mAverageScaleNumber) {
this.mAverageScaleNumber = mAverageScaleNumber;
invalidate();
}
public int getmScaleLineWidth() {
return mScaleLineWidth;
}
public void setmScaleLineWidth(int mScaleLineWidth) {
this.mScaleLineWidth = mScaleLineWidth;
invalidate();
}
public int getmScalerLineHeight() {
return mScalerLineHeight;
}
public void setmScalerLineHeight(int mScalerLineHeight) {
this.mScalerLineHeight = mScalerLineHeight;
invalidate();
}
public boolean isAverageScale() {
return isAverageScale;
}
public void setAverageScale(boolean isAverageScale) {
this.isAverageScale = isAverageScale;
invalidate();
}
// private int getmWidth() {
// return mWidth;
// }
//
// private void setmWidth(int mWidth) {
// this.mWidth = mWidth;
// }
public int getmHeight() {
return mHeight;
}
public void setmHeight(int mHeight) {
this.mHeight = mHeight;
}
public int getmProgressHeight() {
return mProgressHeight;
}
public void setmProgressHeight(int mProgressHeight) {
this.mProgressHeight = mProgressHeight;
invalidate();
}
public int getmRadius() {
return mRadius;
}
public void setmRadius(int mRadius) {
this.mRadius = mRadius;
invalidate();
}
public float getmBgProgressWidth() {
return mBgProgressWidth;
}
public void setmBgProgressWidth(float mBgProgressWidth) {
this.mBgProgressWidth = mBgProgressWidth;
invalidate();
}
public float getmCenterProgressWidth() {
return mCenterProgressWidth;
}
public void setmCenterProgressWidth(float mCenterProgressWidth) {
this.mCenterProgressWidth = mCenterProgressWidth;
invalidate();
}
public float getmAboveProgressWidth() {
return mAboveProgressWidth;
}
public void setmAboveProgressWidth(float mAboveProgressWidth) {
this.mAboveProgressWidth = mAboveProgressWidth;
invalidate();
}
// ------------------------------------------------------------------Paint------------------
public Paint getmDragClickPaint() {
return mDragClickPaint;
}
public void setmDragClickPaint(Paint mDragClickPaint) {
initPain(mDragClickPaint);
this.mDragClickPaint = mDragClickPaint;
invalidate();
}
public Paint getmScalePaint() {
return mScalePaint;
}
public void setmScalePaint(Paint mScalePaint) {
initPain(mScalePaint);
this.mScalePaint = mScalePaint;
invalidate();
}
public Paint getmBackgroundPaint() {
return mBackgroundPaint;
}
public void setmBackgroundPaint(Paint mBackgroundPaint) {
initPain(mBackgroundPaint);
this.mBackgroundPaint = mBackgroundPaint;
invalidate();
}
public Paint getmCenterPaint() {
return mCenterPaint;
}
public void setmCenterPaint(Paint mCenterPaint) {
initPain(mCenterPaint);
this.mCenterPaint = mCenterPaint;
invalidate();
}
public Paint getmAbovePaint() {
return mAbovePaint;
}
public void setmAbovePaint(Paint mAbovePaint) {
initPain(mAbovePaint);
this.mAbovePaint = mAbovePaint;
invalidate();
}
// ------------------------------------------------------------------Paint------------------
public boolean isRoundRect() {
return isRoundRect;
}
public void setRoundRect(boolean isRoundRect) {
this.isRoundRect = isRoundRect;
invalidate();
}
public float getmMaxValue() {
return mMaxValue;
}
public void setmMaxValue(float mMaxValue) {
this.mMaxValue = mMaxValue;
invalidate();
}
public CanDragProgressView(Context context) {
super(context);
// TODO Auto-generated constructor stub
init();
}
public CanDragProgressView(Context context, AttributeSet attrs) {
super(context, attrs);
// TODO Auto-generated constructor stub
init();
}
public CanDragProgressView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
// TODO Auto-generated constructor stub
init();
}
/**
* 初始化
*/
private void init() {
mBackgroundPaint = new Paint();
mBackgroundPaint.setColor(Color.GRAY);
mScalePaint = new Paint();
mScalePaint.setColor(Color.GRAY);
mScalePaint.setTextSize(16);
mCenterPaint = new Paint();
mCenterPaint.setColor(Color.BLUE);
mAbovePaint = new Paint();
mAbovePaint.setColor(Color.RED);
mAbovePaint.setTextSize(45);
mDragClickPaint = new Paint();
mDragClickPaint.setColor(Color.BLACK);
this.setOnTouchListener(this);
initPain(mDragClickPaint);
initPain(mBackgroundPaint);
initPain(mScalePaint);
initPain(mCenterPaint);
initPain(mAbovePaint);
}
/**
* 初始化画笔
*
* @param paint
*/
private void initPain(Paint paint) {
paint.setStyle(Paint.Style.FILL_AND_STROKE);
paint.setAntiAlias(true);// 抗锯齿效果
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
// TODO Auto-generated method stub
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
setMeasuredDimension(widthMeasureSpec, 150);
}
@Override
protected void onSizeChanged(int w, int h, int oldw, int oldh) {
// TODO Auto-generated method stub
mWidth = w;
mHeight = h;
mBgProgressWidth = mWidth;
mCenterProgressWidth = 2 * mBgProgressWidth / 3;
if (isDrawScaleUp) {
mStartY = mScaleHeight + getFontHeight(mScalePaint) + 5;
mProgressHeight = (int) (getFontHeight(mScalePaint) + mScaleHeight + mProgressRealHeight + 5 + mStartY);
} else {
mStartY = 60;
mProgressHeight = (int) (mProgressRealHeight + mStartY);
}
mDragClickPaintRadius = (float) (mProgressRealHeight / 2 + 15);
mRadius = (int) (mProgressRealHeight / 2 + 5);
mDrawScaleWidth = (long) (mWidth - 2 * mDragClickPaintRadius);
mScaleHeight = 10;
mAboveProgressWidth = (mDrawScaleWidth*(mFirstValue/mMaxValue) + mDragClickPaintRadius);
mCenterProgressWidth = (mDrawScaleWidth*(mSecondValue/mMaxValue) + mDragClickPaintRadius);
super.onSizeChanged(w, h, oldw, oldh);
}
@Override
protected void onDraw(Canvas canvas) {
// TODO Auto-generated method stub
// 绘制三个矩形
drawRect(canvas, mBackgroundPaint, 0, mStartY, mBgProgressWidth, mProgressHeight);
// Log.i("progress", mBgProgressWidth+"**"+mProgressHeight+"**"+mStartY+"**"+getFontHeight(mScalePaint));
drawRect(canvas, mCenterPaint, 0, mStartY, mCenterProgressWidth, mProgressHeight);
drawRect(canvas, mAbovePaint, 0, mStartY, mAboveProgressWidth, mProgressHeight);
// 绘制刻度
drawScales(canvas);
// 绘制拖动点
drawDragClick(canvas);
// 绘制滚动数字
drawChangeValue(canvas);
super.onDraw(canvas);
}
/**
* 绘制滚动数字
* @param canvas
*/
private void drawChangeValue(Canvas canvas) {
if (mAbovePaint.measureText(String.format("%1.2f", mFirstValue)) + mDrawScaleWidth*mFirstValue/mMaxValue > mWidth) {
canvas.drawText(String.format("%1.2f", mFirstValue), mWidth - mAbovePaint.measureText(String.format("%1.2f", mFirstValue)), 3*getFontHeight(mAbovePaint)/4, mAbovePaint);
}else {
canvas.drawText(String.format("%1.2f", mFirstValue), mDrawScaleWidth*mFirstValue/mMaxValue, 3*getFontHeight(mAbovePaint)/4, mAbovePaint);
}
}
/**
* 绘制拖动点
* @param canvas
*/
private void drawDragClick(Canvas canvas) {
mDragClickPaint.setColor(Color.BLACK);
RectF oval = new RectF(mAboveProgressWidth - mDragClickPaintRadius, mStartY + mProgressRealHeight/2 - mDragClickPaintRadius, mAboveProgressWidth + mDragClickPaintRadius, mStartY + mProgressRealHeight/2 + mDragClickPaintRadius);
canvas.drawOval(oval, mDragClickPaint);
mDragClickPaint.setColor(Color.WHITE);
RectF oval2 = new RectF(mAboveProgressWidth - mDragClickPaintRadius + 1, mStartY + mProgressRealHeight/2 - mDragClickPaintRadius + 1, mAboveProgressWidth + mDragClickPaintRadius - 1, mStartY + mProgressRealHeight/2 + mDragClickPaintRadius - 1);
canvas.drawOval(oval2, mDragClickPaint);
}
/**
* 绘制刻度
*
* @param canvas
*/
private void drawScales(Canvas canvas) {
if (isDrawScale) {// 是否绘制刻度
if (isAverageScale) {// 均分的刻度
long unitLenght = mDrawScaleWidth / mAverageScaleNumber;// 单位长度
if (isDrawScaleUp) {
for (int i = 0; i < mAverageScaleNumber + 1; i++) {
float startX = mDragClickPaintRadius + i * unitLenght;
canvas.drawLine(startX, getFontHeight(mScalePaint), startX, mScaleHeight +getFontHeight(mScalePaint), mScalePaint);
canvas.drawText(mMaxValue/mAverageScaleNumber*i+"", startX - mScalePaint.measureText(startX + "") / 2, getFontHeight(mScalePaint), mScalePaint);
}
} else {
for (int i = 0; i < mAverageScaleNumber + 1; i++) {
if (isDrawCenterScale) {
float startX = mDragClickPaintRadius + i * unitLenght;
float endY = mProgressHeight + 5 + mScaleHeight;
canvas.drawLine(startX, mProgressHeight + 5, startX, endY, mScalePaint);
canvas.drawText(mMaxValue/mAverageScaleNumber*i+"", startX - mScalePaint.measureText(startX + "") / 3, endY + getFontHeight(mScalePaint), mScalePaint);
}else {
if (i == 0 || i == mAverageScaleNumber) {
float startX = mDragClickPaintRadius + i * unitLenght;
float endY = mProgressHeight + 5 + mScaleHeight;
canvas.drawLine(startX, mProgressHeight + 5, startX, endY, mScalePaint);
canvas.drawText(mMaxValue/mAverageScaleNumber*i+"", startX - mScalePaint.measureText(startX + "") / 3, endY + getFontHeight(mScalePaint), mScalePaint);
}
}
}
}
} else {
if (isDrawScaleUp) {
for (int i = 0; i < mScaleList.size(); i++) {
double number = mScaleList.get(i);
double unit = mDrawScaleWidth*(number/mMaxValue);
float startX = (float) (mDragClickPaintRadius + unit);
if (unit != 0) {
canvas.drawLine(mDragClickPaintRadius, getFontHeight(mScalePaint), mDragClickPaintRadius, mScaleHeight +getFontHeight(mScalePaint), mScalePaint);
canvas.drawText("0", mDragClickPaintRadius - mScalePaint.measureText("0") / 2, getFontHeight(mScalePaint), mScalePaint);
}
canvas.drawLine(startX, getFontHeight(mScalePaint), startX, mScaleHeight +getFontHeight(mScalePaint), mScalePaint);
canvas.drawText(mScaleList.get(i)+"", startX - mScalePaint.measureText(""+mScaleList.get(i))/2, getFontHeight(mScalePaint), mScalePaint);
}
} else {
for (int i = 0; i < mScaleList.size(); i++) {
double number = mScaleList.get(i);
double unit = mDrawScaleWidth*(number/mMaxValue);
float startX = (float) (mDragClickPaintRadius + unit);
float endY = mProgressHeight + 5 + mScaleHeight;
if (unit != 0) {
canvas.drawLine(mDragClickPaintRadius, mProgressHeight + 5, mDragClickPaintRadius, endY, mScalePaint);
canvas.drawText("0", mDragClickPaintRadius - mScalePaint.measureText("0") / 2, endY + getFontHeight(mScalePaint), mScalePaint);
}
canvas.drawLine(startX, mProgressHeight + 5, startX, endY, mScalePaint);
canvas.drawText(mScaleList.get(i)+"", startX - mScalePaint.measureText(""+mScaleList.get(i))/2, endY + getFontHeight(mScalePaint), mScalePaint);
}
}
}
}
}
/**
* 绘制矩形
*
* @param canvas
* @param paint
* @param left
* 左
* @param top
* 上
* @param right
* 右
* @param bottom
* 下
*/
private void drawRect(Canvas canvas, Paint paint, float left, float top, float right, float bottom) {
RectF rectF = new RectF(left, top, right, bottom);
if (isRoundRect) {
canvas.drawRoundRect(rectF, mRadius, mRadius, paint);
} else {
canvas.drawRect(rectF, paint);
}
}
/**
* 获取绘制的字体高度
*
* @param paint
* @return
*/
private int getFontHeight(Paint paint) {
FontMetrics fm = paint.getFontMetrics();
return (int) Math.ceil(fm.descent - fm.ascent);
}
private boolean isActionUp;
@Override
public boolean onTouch(View v, MotionEvent event) {
int code = event.getAction();
// Log.i("progress", "onTouch"+mAboveProgressWidth);
switch (code) {
case MotionEvent.ACTION_DOWN:
isActionUp = false;
setOnTouchInit(event);
break;
case MotionEvent.ACTION_CANCEL:
case MotionEvent.ACTION_UP:
isActionUp = true;
setOnTouchInit(event);
break;
case MotionEvent.ACTION_MOVE:
isActionUp = false;
setOnTouchInit(event);
break;
}
return true;
}
/**
* 触摸时设置边界
*/
private void setOnTouchInit(MotionEvent event){
if (isTransfer) {
if (event.getX() < mDragClickPaintRadius) {
mAboveProgressWidth = mDragClickPaintRadius;
}else if (event.getX() > mCenterProgressWidth) {
mAboveProgressWidth = mCenterProgressWidth;
// Log.i("progress", "onTouch"+mAboveProgressWidth + "***" + mCenterProgressWidth);
}else {
mAboveProgressWidth = event.getX();
}
}else {
if (event.getX() < mDragClickPaintRadius) {
mAboveProgressWidth = mDragClickPaintRadius;
}else if (event.getX() > mWidth - mDragClickPaintRadius) {
mAboveProgressWidth = mWidth - mDragClickPaintRadius;
}else {
mAboveProgressWidth = event.getX();
}
}
mFirstValue = mMaxValue *( mAboveProgressWidth - mDragClickPaintRadius) / mDrawScaleWidth;
if (mDragListener != null && isActionUp) {
mDragListener.onDrag(this, getmFirstValue());
}
invalidate();
}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
}
}
That‘s all。
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