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
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