Android 自定义view仿微信相机单击拍照长按录视频按钮

Android仿微信相机的拍照按钮单击拍照，长按录视频。先上效果图。项目地址：https://github.co

Android仿微信相机的拍照按钮单击拍照，长按录视频。先上效果图。

项目地址：https://github.com/c786909486/PhotoButton2/tree/v1.0

添加依赖

allprojects {
 repositories {
 ...
 maven { url 'https://jitpack.io' }
 }
 }

dependencies {
 compile compile 'com.github.c786909486:PhotoButton2:v1.1'
 }

长按效果分析

判断是否为长按，如果是，则扩大外圆，缩小内圆。由于要扩大外圆，所以在绘制常态的外圆时不可将圆的直径设置为view的宽度或高度。

outRoundPaint.setAntiAlias(true);
 outRoundPaint.setColor(outCircleColor);
 if (isLongClick){
 canvas.scale(1.2f,1.2f,width/2,height/2);
 }
 canvas.drawCircle(width/2,height/2, outRaduis, outRoundPaint);

if (isLongClick){
 canvas.drawCircle(width/2,height/2, innerRaduis /2.0f, innerRoundPaint);
 //画外原环
 mCPaint.setAntiAlias(true);
 mCPaint.setColor(progressColor);
 mCPaint.setStyle(Paint.Style.STROKE);
 mCPaint.setStrokeWidth(circleWidth/2);
 RectF rectF = new RectF(0+circleWidth,0+circleWidth,width-circleWidth,height-circleWidth);
 canvas.drawArc(rectF,startAngle,mSweepAngle,false,mCPaint);
 }else {
 canvas.drawCircle(width/2,height/2, innerRaduis, innerRoundPaint);
 }

然后通过手势识别判断单击、长按、长按抬起。

mDetector = new GestureDetectorCompat(context, new GestureDetector.SimpleOnGestureListener() {
 @Override
 public boolean onSingleTapConfirmed(MotionEvent e) {
 //单击
 isLongClick = false;
 if (listener != null) {
 listener.onClick(TakePhotoButton.this);
 }
 return super.onSingleTapConfirmed(e);
 }
 @Override
 public void onLongPress(MotionEvent e) {
 //长按
 isLongClick = true;
 postInvalidate();
 if (listener != null) {
 listener.onLongClick(TakePhotoButton.this);
 }
 }
 });
 mDetector.setIsLongpressEnabled(true);

 @Override
 public boolean onTouchEvent(MotionEvent event) {
 mDetector.onTouchEvent(event);
 switch(MotionEventCompat.getActionMasked(event)) {
 case MotionEvent.ACTION_DOWN:
 isLongClick = false;
 break;
 case MotionEvent.ACTION_UP:
 case MotionEvent.ACTION_CANCEL:
 if (isLongClick) {
 isLongClick = false;
 postInvalidate();
 if (this.listener != null) {
 this.listener.onLongClickUp(this);
 }
 }
 break;
 }
 return true;
 }

自定义接口对各个状态进行监听

public interface OnProgressTouchListener {
 /**
 * 单击
 * @param photoButton
 */
 void onClick(TakePhotoButton photoButton);
 /**
 * 长按
 * @param photoButton
 */
 void onLongClick(TakePhotoButton photoButton);
 /**
 * 长按抬起
 * @param photoButton
 */
 void onLongClickUp(TakePhotoButton photoButton);
 void onFinish();
 }

最后，给外圆弧添加动画

public void start() {
 ValueAnimator animator = ValueAnimator.ofFloat(mmSweepAngleStart, mmSweepAngleEnd);
 animator.setInterpolator(new LinearInterpolator());
 animator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
 @Override
 public void onAnimationUpdate(ValueAnimator valueAnimator) {
 mSweepAngle = (float) valueAnimator.getAnimatedValue();
 //获取到需要绘制的角度，重新绘制
 invalidate();
 }
 });
 //这里是时间获取和赋值
 ValueAnimator animator1 = ValueAnimator.ofInt(mLoadingTime, 0);
 animator1.setInterpolator(new LinearInterpolator());
 animator1.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
 @Override
 public void onAnimationUpdate(ValueAnimator valueAnimator) {
 int time = (int) valueAnimator.getAnimatedValue();
 }
 });
 AnimatorSet set = new AnimatorSet();
 set.playTogether(animator, animator1);
 set.setDuration(mLoadingTime * 1000);
 set.setInterpolator(new LinearInterpolator());
 set.start();
 set.addListener(new AnimatorListenerAdapter() {
 @Override
 public void onAnimationEnd(Animator animation) {
 super.onAnimationEnd(animation);
 clearAnimation();
 isLongClick = false;
 postInvalidate();
 if (listener != null) {
 listener.onFinish();
 }
 }
 });
 }

最后，在activity中给控件设置监听即可。

buttontake.setOnProgressTouchListener(new TakePhotoButton.OnProgressTouchListener() {
 @Override
 public void onClick(TakePhotoButton photoButton) {
 Toast.makeText(MainActivity.this,"单机",Toast.LENGTH_SHORT).show();
 }
 @Override
 public void onLongClick(TakePhotoButton photoButton) {
 Toast.makeText(MainActivity.this,"长按",Toast.LENGTH_SHORT).show();
 buttontake.start();
 }
 @Override
 public void onLongClickUp(TakePhotoButton photoButton) {
 onFinish();
 }
 @Override
 public void onFinish() {
 Toast.makeText(MainActivity.this,"录制结束",Toast.LENGTH_SHORT).show();
 }
 });

        button.s

下面贴上完整的代码

TakePhotoButton：

import android.animation.Animator;
import android.animation.AnimatorListenerAdapter;
import android.animation.AnimatorSet;
import android.animation.ValueAnimator;
import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.RectF;
import android.support.annotation.Nullable;
import android.support.v4.view.GestureDetectorCompat;
import android.support.v4.view.MotionEventCompat;
import android.util.AttributeSet;
import android.view.GestureDetector;
import android.view.MotionEvent;
import android.view.View;
import android.view.animation.LinearInterpolator;
/**
 * Created by CKZ on 2017/8/9.
 */
public class TakePhotoButton extends View {
 private float circleWidth;//外圆环宽度
 private int outCircleColor;//外圆颜色
 private int innerCircleColor;//内圆颜色
 private int progressColor;//进度条颜色
 private Paint outRoundPaint = new Paint(); //外圆画笔
 private Paint mCPaint = new Paint();//进度画笔
 private Paint innerRoundPaint = new Paint();
 private float width; //自定义view的宽度
 private float height; //自定义view的高度
 private float outRaduis; //外圆半径
 private float innerRaduis;//内圆半径
 private GestureDetectorCompat mDetector;//手势识别
 private boolean isLongClick;//是否长按
 private float startAngle = -90;//开始角度
 private float mmSweepAngleStart = 0f;//起点
 private float mmSweepAngleEnd = 360f;//终点
 private float mSweepAngle;//扫过的角度
 private int mLoadingTime;
 public TakePhotoButton(Context context) {
 this(context,null);
}
 public TakePhotoButton(Context context, @Nullable AttributeSet attrs) {
 this(context, attrs,0);
 }
 public TakePhotoButton(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
 super(context, attrs, defStyleAttr);
 init(context,attrs);
 }
 private void init(Context context,AttributeSet attrs){
 TypedArray array = context.obtainStyledAttributes(attrs,R.styleable.TakePhotoButton);
 outCircleColor = array.getColor(R.styleable.TakePhotoButton_outCircleColor,Color.parseColor("#E0E0E0"));
 innerCircleColor = array.getColor(R.styleable.TakePhotoButton_innerCircleColor,Color.WHITE);
 progressColor = array.getColor(R.styleable.TakePhotoButton_readColor,Color.GREEN);
 mLoadingTime = array.getInteger(R.styleable.TakePhotoButton_maxSeconds,10);
 mDetector = new GestureDetectorCompat(context, new GestureDetector.SimpleOnGestureListener() {
 @Override
 public boolean onSingleTapConfirmed(MotionEvent e) {
 //单击
 isLongClick = false;
 if (listener != null) {
 listener.onClick(TakePhotoButton.this);
 }
 return super.onSingleTapConfirmed(e);
 }
 @Override
 public void onLongPress(MotionEvent e) {
 //长按
 isLongClick = true;
 postInvalidate();
 if (listener != null) {
 listener.onLongClick(TakePhotoButton.this);
 }
 }
 });
 mDetector.setIsLongpressEnabled(true);
 }
 private void resetParams() {
 width = getWidth();
 height = getHeight();
 circleWidth = width*0.13f;
 outRaduis = (float) (Math.min(width, height)/2.4);
 innerRaduis = outRaduis -circleWidth;
 }
 @Override
 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
 super.onMeasure(widthMeasureSpec, heightMeasureSpec);
 int width = MeasureSpec.getSize(widthMeasureSpec);
 int height = MeasureSpec.getSize(heightMeasureSpec);
 if (width > height) {
 setMeasuredDimension(height, height);
 } else {
 setMeasuredDimension(width, width);
 }
 }
 @Override
 protected void onDraw(Canvas canvas) {
 resetParams();
 //画外圆
 outRoundPaint.setAntiAlias(true);
 outRoundPaint.setColor(outCircleColor);
 if (isLongClick){
 canvas.scale(1.2f,1.2f,width/2,height/2);
 }
 canvas.drawCircle(width/2,height/2, outRaduis, outRoundPaint);
 //画内圆
 innerRoundPaint.setAntiAlias(true);
 innerRoundPaint.setColor(innerCircleColor);
 if (isLongClick){
 canvas.drawCircle(width/2,height/2, innerRaduis /2.0f, innerRoundPaint);
 //画外原环
 mCPaint.setAntiAlias(true);
 mCPaint.setColor(progressColor);
 mCPaint.setStyle(Paint.Style.STROKE);
 mCPaint.setStrokeWidth(circleWidth/2);
 RectF rectF = new RectF(0+circleWidth,0+circleWidth,width-circleWidth,height-circleWidth);
 canvas.drawArc(rectF,startAngle,mSweepAngle,false,mCPaint);
 }else {
 canvas.drawCircle(width/2,height/2, innerRaduis, innerRoundPaint);
 }
 }
 public void start() {
 ValueAnimator animator = ValueAnimator.ofFloat(mmSweepAngleStart, mmSweepAngleEnd);
 animator.setInterpolator(new LinearInterpolator());
 animator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
 @Override
 public void onAnimationUpdate(ValueAnimator valueAnimator) {
 mSweepAngle = (float) valueAnimator.getAnimatedValue();
 //获取到需要绘制的角度，重新绘制
 invalidate();
 }
 });
 //这里是时间获取和赋值
 ValueAnimator animator1 = ValueAnimator.ofInt(mLoadingTime, 0);
 animator1.setInterpolator(new LinearInterpolator());
 animator1.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
 @Override
 public void onAnimationUpdate(ValueAnimator valueAnimator) {
 int time = (int) valueAnimator.getAnimatedValue();
 }
 });
 AnimatorSet set = new AnimatorSet();
 set.playTogether(animator, animator1);
 set.setDuration(mLoadingTime * 1000);
 set.setInterpolator(new LinearInterpolator());
 set.start();
 set.addListener(new AnimatorListenerAdapter() {
 @Override
 public void onAnimationEnd(Animator animation) {
 super.onAnimationEnd(animation);
 clearAnimation();
 isLongClick = false;
 postInvalidate();
 if (listener != null) {
 listener.onFinish();
 }
 }
 });
 }
 @Override
 public boolean onTouchEvent(MotionEvent event) {
 mDetector.onTouchEvent(event);
 switch(MotionEventCompat.getActionMasked(event)) {
 case MotionEvent.ACTION_DOWN:
 isLongClick = false;
 break;
 case MotionEvent.ACTION_UP:
 case MotionEvent.ACTION_CANCEL:
 if (isLongClick) {
 isLongClick = false;
 postInvalidate();
 if (this.listener != null) {
 this.listener.onLongClickUp(this);
 }
 }
 break;
 }
 return true;
 }
 private OnProgressTouchListener listener;
 public void setOnProgressTouchListener(OnProgressTouchListener listener) {
 this.listener = listener;
 }
 /**
 * 进度触摸监听
 */
 public interface OnProgressTouchListener {
 /**
 * 单击
 * @param photoButton
 */
 void onClick(TakePhotoButton photoButton);
 /**
 * 长按
 * @param photoButton
 */
 void onLongClick(TakePhotoButton photoButton);
 /**
 * 长按抬起
 * @param photoButton
 */
 void onLongClickUp(TakePhotoButton photoButton);
 void onFinish();
 }
}

项目地址：https://github.com/c786909486/PhotoButton2/tree/v1.0

总结

以上所述是小编给大家介绍的Android 自定义view仿微信相机单击拍照长按录视频按钮，希望对大家有所帮助，如果大家有任何疑问欢迎给我留言，小编会及时回复大家的！

自定义view 微信单击拍照 微信长按录视频