android 欢迎页圆形进度条倒计时功能

package com.ss.myapplication; import android.annotation.TargetApi; import android.content.Context; import android.content.res.ColorStateList; import android.content.res.TypedArray; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.Paint; import android.graphics.Rect; import android.graphics.RectF; import android.os.Build; import android.support.annotation.ColorInt; import android.util.AttributeSet; import android.util.Log; import android.widget.TextView; public class CircleProgressbar extends TextView { //外部轮廓的颜色 private int outLineColor = Color.BLACK; //外部轮廓的宽度 private int outLineWidth = 2; //内部圆的颜色 private ColorStateList inCircleColors = ColorStateList.valueOf(Color.TRANSPARENT); //中心圆的颜色 private int circleColor; //进度条的颜色 private int progressLineColor = Color.BLUE; //进度条的宽度 private int progressLineWidth = 8; //画笔 private Paint mPaint = new Paint(); //进度条的矩形区域 private RectF mArcRect = new RectF(); //进度 private int progress = 100; //进度条类型 private ProgressType mProgressType = ProgressType.COUNT_BACK; //进度倒计时时间 private long timeMillis = 3000; //View的显示区域。 final Rect bounds = new Rect(); //进度条通知。 private OnCountdownProgressListener mCountdownProgressListener; private int listenerWhat = 0; public CircleProgressbar(Context context) { this(context, null); } public CircleProgressbar(Context context, AttributeSet attrs) { this(context, attrs, 0); } public CircleProgressbar(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); initialize(context, attrs); } @TargetApi(Build.VERSION_CODES.LOLLIPOP) public CircleProgressbar(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) { super(context, attrs, defStyleAttr, defStyleRes); initialize(context, attrs); } private void initialize(Context context, AttributeSet attributeSet) { mPaint.setAntiAlias(true); TypedArray typedArray = context.obtainStyledAttributes(attributeSet, R.styleable.CircleProgressbar); if (typedArray.hasValue(R.styleable.CircleProgressbar_in_circle_color)) inCircleColors = typedArray.getColorStateList(R.styleable.CircleProgressbar_in_circle_color); else inCircleColors = ColorStateList.valueOf(Color.TRANSPARENT); circleColor = inCircleColors.getColorForState(getDrawableState(), Color.TRANSPARENT); typedArray.recycle(); } /** * 设置外部轮廓圆的颜色 */ public void setOutLineColor(@ColorInt int outLineColor) { this.outLineColor = outLineColor; invalidate(); } /** * 设置外部轮廓圆的宽度 */ public void setOutLineWidth(@ColorInt int outLineWidth) { this.outLineWidth = outLineWidth; invalidate(); } /** * 设置中心圆的颜色 */ public void setInCircleColor(@ColorInt int inCircleColor) { this.inCircleColors = ColorStateList.valueOf(inCircleColor); invalidate(); } private void validateCircleColor() { int circleColorTemp = inCircleColors.getColorForState(getDrawableState(), Color.TRANSPARENT); if (circleColor != circleColorTemp) { circleColor = circleColorTemp; invalidate(); } } /** * 设置圆形进度条颜色 */ public void setProgressColor(@ColorInt int progressLineColor) { this.progressLineColor = progressLineColor; invalidate(); } /** * 设置圆形进度条宽度 */ public void setProgressLineWidth(int progressLineWidth) { this.progressLineWidth = progressLineWidth; invalidate(); } /** * 设置进度条值 */ public void setProgress(int progress) { this.progress = validateProgress(progress); invalidate(); } private int validateProgress(int progress) { if (progress > 100) progress = 100; else if (progress < 0) progress = 0; return progress; } /** * 获取进度值 */ public int getProgress() { return progress; } /** * 设置倒计时时间 */ public void setTimeMillis(long timeMillis) { this.timeMillis = timeMillis; invalidate(); } /** * 获取倒计时时间 */ public long getTimeMillis() { return this.timeMillis; } /** * 设置进度条类型 是0-100 还是100_0 */ public void setProgressType(ProgressType progressType) { this.mProgressType = progressType; resetProgress(); invalidate(); } private void resetProgress() { switch (mProgressType) { case COUNT: progress = 0; break; case COUNT_BACK: progress = 100; break; } } /** * 获取进度条类型 */ public ProgressType getProgressType() { return mProgressType; } /** * 设置进度监听 */ public void setCountdownProgressListener(int what, OnCountdownProgressListener mCountdownProgressListener) { this.listenerWhat = what; this.mCountdownProgressListener = mCountdownProgressListener; } public void start() { stop(); post(progressChangeTask); } /** * 开始旋转倒计时 */ public void reStart() { resetProgress(); start(); } public void stop() { removeCallbacks(progressChangeTask); } @Override protected void onDraw(Canvas canvas) { //获取view的边界 getDrawingRect(bounds); int size = bounds.height() > bounds.width() ? bounds.width() : bounds.height(); float outerRadius = size / 2; //画内部背景 int circleColor = inCircleColors.getColorForState(getDrawableState(), 0); mPaint.setStyle(Paint.Style.FILL); mPaint.setColor(circleColor); canvas.drawCircle(bounds.centerX(), bounds.centerY(), outerRadius - outLineWidth, mPaint); //画边框圆 mPaint.setStyle(Paint.Style.STROKE); mPaint.setStrokeWidth(outLineWidth); mPaint.setColor(outLineColor); canvas.drawCircle(bounds.centerX(), bounds.centerY(), outerRadius - outLineWidth / 2, mPaint); //画字 Paint paint = getPaint(); paint.setColor(getCurrentTextColor()); paint.setAntiAlias(true); paint.setTextAlign(Paint.Align.CENTER); float textY = bounds.centerY() - (paint.descent() + paint.ascent()) / 2; canvas.drawText(getText().toString(), bounds.centerX(), textY, paint); //画进度条 mPaint.setColor(progressLineColor); mPaint.setStyle(Paint.Style.STROKE); mPaint.setStrokeWidth(progressLineWidth); // mPaint.setStrokeCap(Paint.Cap.ROUND); mPaint.setAntiAlias(true); int deleteWidth = progressLineWidth + outLineWidth; mArcRect.set(bounds.left + deleteWidth / 2, bounds.top + deleteWidth / 2, bounds.right - deleteWidth / 2, bounds.bottom - deleteWidth / 2); canvas.drawArc(mArcRect, -90, -360 * progress / 100, false, mPaint); } @Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { super.onMeasure(widthMeasureSpec, heightMeasureSpec); int lineWidth = 4 * (outLineWidth + progressLineWidth); int width = getMeasuredWidth(); int height = getMeasuredHeight(); int size = (width > height ? width : height) + lineWidth; setMeasuredDimension(size, size); } @Override pr