自定义圆形progressbar（包含进度动画效果）

效果图敬上：）

attrs文件：
< resources>
< declare-styleable name=”CircleProgressBarStyle”>
< attr name=”circleColor” format=”color”/>
< attr name=”circleProgressColor” format=”color”/>
< attr name=”progressWidth” format=”float”/>
< attr name=”progress” format=”integer”/>
< attr name=”max” format=”integer”/>
< attr name=”progressPadding” format=”integer”/>
< attr name=”animation” format=”boolean”/>
< attr name=”style”>
< enum name=”STROKE” value=”0”/>
< enum name=”FILL” value=”1”/>
< /attr>
< /declare-styleable>
< /resources>

xml文件：记着加 xmlns:progress=”http://schemas.android.com/apk/res-auto”

 < com.test.ffmpeg.CircleProgressBar        android:id="@+id/CircleProgressBar"        android:layout_width="100dp"        android:layout_height="100dp"        android:layout_centerInParent="true"        progress:circleColor="@color/white"        progress:circleProgressColor="@color/colorAccent"        progress:progressWidth="10"        progress:progressPadding="15"        progress:progress="50"        progress:max="100"        progress:animation="true"        progress:style="FILL"/>

CircleProgressBar：

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.os.Handler;import android.os.Message;import android.support.annotation.Nullable;import android.util.AttributeSet;import android.util.Log;import android.view.View;/** * 自定义圆形progressbar */public class CircleProgressBar extends View {    /**     * 画笔     */    private Paint mPaint;    /**     * 实心圆颜色     */    private int CircleColor;    /**     * 圆环颜色     */    private int CircleProgressColor;    /**     * 圆环宽度     */    private float CircleProgressWidth;    /**     * 实心圆与环间的距离     */    private int ProgressPadding;    /**     * 最大进度     */    private int ProgressMax;    /**     * 进度的风格，是否绘画内部实心圆     */    private int style;    /**     * 当前进度     */    private int progress;    /**     * 显示时是否需要动画效果     */    private boolean animation;    /**     * 进度动画更新次数     */    private int speed = 100;//这里修改的话每隔10ms处也应修该，个人感觉这个值正好！ private double progress_=0;//临时存储double类型格式的进度private int temporaryProgress=0;//临时存放记录的progressprivate double temporary=0;private boolean isFirst=true;//是否是第一次绘制private Handler mHandler = new Handler() {    @Override    public void handleMessage(Message msg) {        if(speed>=0) {            speed--;            progress_ = progress_ + temporary;            if(progress_>=temporaryProgress){                progress=temporaryProgress;            }else {                progress= (int) progress_;            }            setProgress(progress);            mHandler.sendEmptyMessageDelayed(1, 10);//每隔10ms执行一次        }else {            mHandler.removeMessages(1);        }    }};public CircleProgressBar(Context context) {    this(context, null);}public CircleProgressBar(Context context, @Nullable AttributeSet attrs) {    this(context, attrs, 0);//!!!}public CircleProgressBar(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {    super(context, attrs, defStyleAttr);    mPaint = new Paint();    //获取自定义属性值    TypedArray mTypedArray = context.obtainStyledAttributes(attrs, R.styleable.CircleProgressBarStyle);    CircleColor = mTypedArray.getColor(R.styleable.CircleProgressBarStyle_circleColor, Color.WHITE);    CircleProgressColor = mTypedArray.getColor(R.styleable.CircleProgressBarStyle_circleProgressColor, Color.BLUE);    CircleProgressWidth = mTypedArray.getFloat(R.styleable.CircleProgressBarStyle_progressWidth, 5);    ProgressMax = mTypedArray.getInteger(R.styleable.CircleProgressBarStyle_max, 100);    style = mTypedArray.getInt(R.styleable.CircleProgressBarStyle_style, 1);    progress = mTypedArray.getInteger(R.styleable.CircleProgressBarStyle_progress, 60);    ProgressPadding = mTypedArray.getInteger(R.styleable.CircleProgressBarStyle_progressPadding, 0);    animation = mTypedArray.getBoolean(R.styleable.CircleProgressBarStyle_animation, false);    mTypedArray.recycle();}@Overrideprotected void onDraw(Canvas canvas) {    super.onDraw(canvas);    //开始绘制 内部实心圆    int circle_x = getWidth() / 2;//获取圆心坐标    int radius = (int) (circle_x - CircleProgressWidth - ProgressPadding);    int prgress_radius = (int) (circle_x - CircleProgressWidth);    if (style == 1) {//判断是否绘画内部实心圆        mPaint.setColor(CircleColor);//画笔颜色        mPaint.setStyle(Paint.Style.FILL);//实心        mPaint.setAntiAlias(true);//消除锯齿        canvas.drawCircle(circle_x, circle_x, radius, mPaint);    }    //progressbar进度条（扇形环）    RectF rectF = new RectF(circle_x - prgress_radius, circle_x - prgress_radius,            circle_x + prgress_radius, circle_x + prgress_radius);    mPaint.setColor(CircleProgressColor);    mPaint.setStyle(Paint.Style.STROKE);//空心    mPaint.setStrokeWidth(CircleProgressWidth);//圆环宽度    mPaint.setAntiAlias(true);//消除锯齿    if (animation && isFirst) {        isFirst=false;        temporary=(double) progress/speed;//设置每次progress增量值        Log.e("增量",""+temporary);        temporaryProgress=progress;//记录        progress=0;//归0        mHandler.sendEmptyMessage(1);    }    canvas.drawArc(rectF, -90, 360 * progress / ProgressMax, false, mPaint);}public int getCircleColor() {    return CircleColor;}public void setCircleColor(int circleColor) {    CircleColor = circleColor;}public int getCircleProgressColor() {    return CircleProgressColor;}public void setCircleProgressColor(int circleProgressColor) {    CircleProgressColor = circleProgressColor;}public float getCircleProgressWidth() {    return CircleProgressWidth;}public void setCircleProgressWidth(float circleProgressWidth) {    CircleProgressWidth = circleProgressWidth;}public int getProgressPadding() {    return ProgressPadding;}public void setProgressPadding(int progressPadding) {    ProgressPadding = progressPadding;}public int getProgressMax() {    return ProgressMax;}public void setProgressMax(int progressMax) {    if (progressMax > 0)        ProgressMax = progressMax;}public int getStyle() {    return style;}public void setStyle(int style) {    this.style = style;}public synchronized int getProgress() {    return progress;}/** * 加个锁，防止属性animation和外部同时调用该方法异常 * * @param progress */    public synchronized void setProgress(int progress) {        if (progress > 0)            this.progress = progress > ProgressMax ? ProgressMax : progress;        postInvalidate();     }  public boolean isAnimation() {    return animation;}public void setAnimation(boolean animation) {    this.animation = animation;}  }