自定义圆环倒计时

public class CountDownView extends View{    private static int defaultCircleSolideColor = Color.BLUE;    private static int defaultCircleStrokeColor = Color.WHITE;//最底层的颜色    private static int defaultCircleStrokeWidth = 10;    private static int defaultCircleRadius = 60;    private static int progressColor = Color.YELLOW;//进度条的颜色    private static int progressWidth = 11;//>defaultCircleStrokeWidth    private static int smallCircleSolideColor = Color.BLACK;    private static int smallCircleStrokeColor = Color.WHITE;    private static float smallCircleStrokeWidth = 8;    private static float smallCircleRadius = 30;    private static int textColor = Color.WHITE;//BLACK    private static float textSize = 30;    private static Paint defaultCriclePaint;    private static Paint progressPaint;    private static Paint textPaint;    private static float currentAngle;    public static String textDesc;    public static long countdownTime;    private static int mStartSweepValue = -90;    //设置画布圆形背景    private Paint backgroundPaint;    public static ValueAnimator animator;    public CountDownView(Context context) {        super(context);    }    public CountDownView(Context context, AttributeSet attrs) {        super(context, attrs);        initStyle(attrs);        setPaint();    }    public CountDownView(Context context, AttributeSet attrs, int defStyleAttr) {        super(context, attrs, defStyleAttr);        //获取自定义属性        initStyle(attrs);        setPaint();    }    private void initStyle(AttributeSet attrs){        TypedArray typedArray = getContext().obtainStyledAttributes(attrs, R.styleable.CountDownProgress);        int indexCount = typedArray.getIndexCount();        for(int i=0;i<indexCount;i++){            int attr = typedArray.getIndex(i);            switch (attr){                case R.styleable.CountDownProgress_default_circle_solide_color:                    defaultCircleSolideColor = typedArray.getColor(attr, defaultCircleSolideColor);                    break;                case R.styleable.CountDownProgress_default_circle_stroke_color:                    defaultCircleStrokeColor = typedArray.getColor(attr, defaultCircleStrokeColor);                    break;                case R.styleable.CountDownProgress_default_circle_stroke_width:                    defaultCircleStrokeWidth = (int) typedArray.getDimension(attr, defaultCircleStrokeWidth);                    break;                case R.styleable.CountDownProgress_default_circle_radius:                    defaultCircleRadius = (int) typedArray.getDimension(attr, defaultCircleRadius);                    break;                case R.styleable.CountDownProgress_progress_color:                    progressColor = typedArray.getColor(attr, progressColor);                    break;                case R.styleable.CountDownProgress_progress_width:                    progressWidth = (int) typedArray.getDimension(attr, progressWidth);                    break;                case R.styleable.CountDownProgress_small_circle_solide_color:                    smallCircleSolideColor = typedArray.getColor(attr, smallCircleSolideColor);                    break;                case R.styleable.CountDownProgress_small_circle_stroke_color:                    smallCircleStrokeColor = typedArray.getColor(attr, smallCircleStrokeColor);                    break;                case R.styleable.CountDownProgress_small_circle_stroke_width:                    smallCircleStrokeWidth = (int) typedArray.getDimension(attr, smallCircleStrokeWidth);                    break;                case R.styleable.CountDownProgress_small_circle_radius:                    smallCircleRadius = (int) typedArray.getDimension(attr, smallCircleRadius);                    break;                case R.styleable.CountDownProgress_text_color:                    textColor = typedArray.getColor(attr, textColor);                    break;                case R.styleable.CountDownProgress_text_size:                    textSize = (int) typedArray.getDimension(attr, textSize);                    break;            }        }        typedArray.recycle();    }    private void setPaint() {        //默认圆        defaultCriclePaint = new Paint();        defaultCriclePaint.setAntiAlias(true);//抗锯齿        defaultCriclePaint.setDither(true);//防抖动        defaultCriclePaint.setStyle(Paint.Style.STROKE);        defaultCriclePaint.setStrokeWidth(defaultCircleStrokeWidth);        defaultCriclePaint.setColor(defaultCircleStrokeColor);//这里先画边框的颜色，后续再添加画笔画实心的颜色        //默认圆上面的进度弧度        progressPaint = new Paint();        progressPaint.setAntiAlias(true);        progressPaint.setDither(true);        progressPaint.setStyle(Paint.Style.STROKE);        progressPaint.setStrokeWidth(progressWidth);        progressPaint.setColor(progressColor);        progressPaint.setStrokeCap(Paint.Cap.ROUND);//设置画笔笔刷样式        //文字画笔        textPaint = new Paint();        textPaint.setAntiAlias(true);        textPaint.setDither(true);        textPaint.setStyle(Paint.Style.FILL);        textPaint.setColor(textColor);        textPaint.setTextSize(textSize);        backgroundPaint=new Paint();        backgroundPaint.setAntiAlias(true);//抗锯齿        backgroundPaint.setDither(true);//防抖动        backgroundPaint.setStyle(Paint.Style.FILL);        backgroundPaint.setStrokeWidth(defaultCircleStrokeWidth);        backgroundPaint.setColor(progressColor);//这里先画边框的颜色，后续再添加画笔画实心的颜色    }    @Override    protected void onDraw(Canvas canvas) {        super.onDraw(canvas);        canvas.save();        canvas.translate(getPaddingLeft(), getPaddingTop());        //背景圆        canvas.drawCircle(defaultCircleRadius, defaultCircleRadius, defaultCircleRadius, backgroundPaint);        //画默认圆        canvas.drawCircle(defaultCircleRadius, defaultCircleRadius, defaultCircleRadius, defaultCriclePaint);        //画进度圆弧        //currentAngle = getProgress()*1.0f/getMax()*360;recf适用于划出一块绘制的区域mStartSweepValue是开始的位置        canvas.drawArc(new RectF(0, 0, defaultCircleRadius*2, defaultCircleRadius*2),mStartSweepValue, 360*currentAngle,false,progressPaint);        //画中间文字        //   String text = getProgress()+"%";        //获取文字的长度的方法        float textWidth = textPaint.measureText(textDesc);        float textHeight = (textPaint.descent() + textPaint.ascent()) / 2;        canvas.drawText(textDesc, defaultCircleRadius - textWidth/2, defaultCircleRadius - textHeight, textPaint);        canvas.restore();    }    /**     * 如果该View布局的宽高开发者没有精确的告诉，则需要进行测量，如果给出了精确的宽高则我们就不管了     * @param widthMeasureSpec     * @param heightMeasureSpec     */    @Override    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {        int widthMode = MeasureSpec.getMode(widthMeasureSpec);        int heightMode = MeasureSpec.getMode(heightMeasureSpec);        int widthSize;        int heightSize;        int strokeWidth = Math.max(defaultCircleStrokeWidth, progressWidth);        //精确指定宽高        if(widthMode != MeasureSpec.EXACTLY){            widthSize = getPaddingLeft() + defaultCircleRadius*2 + strokeWidth + getPaddingRight();            widthMeasureSpec = MeasureSpec.makeMeasureSpec(widthSize, MeasureSpec.EXACTLY);        }        if(heightMode != MeasureSpec.EXACTLY){            heightSize = getPaddingTop() + defaultCircleRadius*2 + strokeWidth + getPaddingBottom();            heightMeasureSpec = MeasureSpec.makeMeasureSpec(heightSize, MeasureSpec.EXACTLY);        }        super.onMeasure(widthMeasureSpec, heightMeasureSpec);    }    //属性动画    public void startCountDownTime(final OnCountdownFinishListener countdownFinishListener){        setClickable(true);        animator = ValueAnimator.ofFloat(0, 1.0f);        //动画时长，让进度条在CountDown时间内正好从0-360走完，这里由于用的是CountDownTimer定时器，倒计时要想减到0则总时长需要多加1000毫秒，所以这里时间也跟着+1000ms        animator.setDuration(countdownTime );//+ 1000        animator.setInterpolator(new LinearInterpolator());//匀速        animator.setRepeatCount(0);//表示不循环，-1表示无限循环        //值从0-1.0F 的动画，动画时长为countdownTime，ValueAnimator没有跟任何的控件相关联，那也正好说明ValueAnimator只是对值做动画运算，而不是针对控件的，我们需要监听ValueAnimator的动画过程来自己对控件做操作        //添加监听器,监听动画过程中值的实时变化(animation.getAnimatedValue()得到的值就是0-1.0)        animator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {            @Override            public void onAnimationUpdate(ValueAnimator animation) {                /**                 * 这里我们已经知道ValueAnimator只是对值做动画运算，而不是针对控件的，因为我们设置的区间值为0-1.0f                 * 所以animation.getAnimatedValue()得到的值也是在[0.0-1.0]区间，而我们在画进度条弧度时，设置的当前角度为360*currentAngle，                 * 因此，当我们的区间值变为1.0的时候弧度刚好转了360度                 */                currentAngle = (float) animation.getAnimatedValue();                //       Log.e("currentAngle",currentAngle+"");                invalidate();//实时刷新view，这样我们的进度条弧度就动起来了            }        });        //开启动画        animator.start();        //还需要另一个监听，监听动画状态的监听器        animator.addListener(new Animator.AnimatorListener() {            @Override            public void onAnimationStart(Animator animation) {            }            @Override            public void onAnimationEnd(Animator animation) {                //倒计时结束的时候，需要通过自定义接口通知UI去处理其他业务逻辑                if(countdownFinishListener != null){                    countdownFinishListener.countdownFinished();                }                if(countdownTime > 0){                    setClickable(true);                }else{                    setClickable(false);                }            }            @Override            public void onAnimationCancel(Animator animation) {            }            @Override            public void onAnimationRepeat(Animator animation) {            }        });        //调用倒计时操作        countdownMethod();    }    public CountDownTimer timer;    //倒计时的方法    private void countdownMethod(){        timer= new CountDownTimer(countdownTime+1000, 1000) {            @Override            public void onTick(long millisUntilFinished) {                //         Log.e("time",countdownTime+"");                countdownTime = countdownTime-1000;                textDesc = "跳过("+((countdownTime/1000)) + ")";                //countdownTime = countdownTime-1000;                //刷新view                invalidate();            }            @Override            public void onFinish() {                //textDesc = 0 + "″";                //刷新view//                textDesc="跳过(0)";//                invalidate();            }        }.start();    }    public void setCountdownTime(long countdownTime){        this.countdownTime = countdownTime;        textDesc = countdownTime / 1000 + "″";    }    public interface OnCountdownFinishListener{        void countdownFinished();    }} 
<com.bawei.macbook.moni.persenter.CountDownView    android:id="@+id/countdwonview"    android:layout_width="90dp"    android:layout_height="100dp"    android:layout_alignParentRight="true"    android:layout_alignParentTop="true"    android:paddingTop="35dp"    android:paddingRight="10dp"    android:paddingLeft="10dp"    />