import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.RectF;
import android.text.TextUtils;
import android.util.AttributeSet;
import android.view.View;
/**
* 圆形进度条,有动画效果.
*/
public classMainCircleProgressViewextendsView{
//最大进度
private doublemMaxProgress=100;
//目前进度
private doublemProgress=30;
// 画圆所在的距形区域
private finalRectFmRectF;
private finalPaintmPaint;
//文字变量
privateStringmTopText;
privateStringmCenterText;
privateStringmBottomText;
//管理线程,一个新动画线程进来,前面的动画线程会停止
private intmProgressManger=0;
publicMainCircleProgressView(Contextcontext,AttributeSetattrs) {
super(context,attrs);
mRectF=newRectF();
mPaint=newPaint();
mCenterText="";
}
@Override
protected voidonMeasure(intwidthMeasureSpec,intheightMeasureSpec) {
//谁比较宽就用谁
if(heightMeasureSpec<=widthMeasureSpec) {
super.onMeasure(heightMeasureSpec,heightMeasureSpec);
}else{
super.onMeasure(widthMeasureSpec,widthMeasureSpec);
}
}
@Override
protected voidonDraw(Canvascanvas) {
intcircleLineStrokeWidth=15;
inttextStrokeWidth=2;
super.onDraw(canvas);
intwidth=this.getWidth();
intheight=this.getHeight();
if(width!=height) {
intmin=Math.min(width,height);
width=min;
height=min;
}
// 设置画笔相关属性
mPaint.setAntiAlias(true);
mPaint.setColor(Color.rgb(83,88,88));
mPaint.setAlpha(50);
canvas.drawColor(Color.TRANSPARENT);
mPaint.setStrokeWidth(circleLineStrokeWidth);
mPaint.setStyle(Paint.Style.STROKE);
// 位置
mRectF.left=circleLineStrokeWidth/2;// 左上角x
mRectF.top=circleLineStrokeWidth/2;// 左上角y
mRectF.right=width-circleLineStrokeWidth/2;// 左下角x
mRectF.bottom=height-circleLineStrokeWidth/2;// 右下角y
// 绘制圆圈，进度条背景
canvas.drawArc(mRectF,-90,360,false,mPaint);
mPaint.setColor(Color.WHITE);
canvas.drawArc(mRectF,-90,(float) ((mProgress/mMaxProgress) *360),false,mPaint);
// 绘制中间文字
mPaint.setStrokeWidth(textStrokeWidth);
String text=mCenterText;
inttextHeight=height/4;
mPaint.setTextSize(textHeight);
inttextWidth= (int)mPaint.measureText(text,0,text.length());
mPaint.setStyle(Paint.Style.FILL);
canvas.drawText(text,width/2-textWidth/2,height/2+textHeight/2,mPaint);
// 绘制上面文字
textHeight=height/10;
if(!TextUtils.isEmpty(mTopText)) {
mPaint.setStrokeWidth(textStrokeWidth);
text=mTopText;
mPaint.setTextSize(textHeight);
mPaint.setColor(Color.WHITE);
textWidth= (int)mPaint.measureText(text,0,text.length());
mPaint.setStyle(Paint.Style.FILL);
canvas.drawText(text,width/2-textWidth/2,height/4+textHeight/2,mPaint);
}
// 绘制下面文字
if(!TextUtils.isEmpty(mBottomText)) {
mPaint.setStrokeWidth(textStrokeWidth);
text=mBottomText;
mPaint.setTextSize(textHeight);
textWidth= (int)mPaint.measureText(text,0,text.length());
mPaint.setStyle(Paint.Style.FILL);
canvas.drawText(text,width/2-textWidth/2,3*height/4+textHeight/2,mPaint);
}
}
//设置进程并刷新界面,UI线程实时刷新,干掉动画.
public voidsetProgress(doubleprogress) {
mProgressManger++;
this.mProgress= progress;
this.invalidate();
}
public voidsetProgressNotInUiThread(doubleprogress) {
this.mProgress= progress;
this.postInvalidate();
}
public voidsetMaxProgress(doublemaxProgress) {
this.mMaxProgress= maxProgress;
}
public voidsetBottomText(StringbottomText) {
this.mBottomText= bottomText;
}
public voidsetTopText(StringtopText) {
this.mTopText= topText;
}
public voidsetCenterText(StringcenterText) {
this.mCenterText= centerText;
}
public voidsetProgressAnimation(final doubleprogress){
final intnumber= ++mProgressManger;
newThread(newRunnable() {
@Override
public voidrun() {
if(progress==0) {
return;
}
doublefp=mMaxProgress*0.0025;
doublecurrentProgress=fp;
while(true) {
if(number!=mProgressManger){
return;
}
if(progress
setProgressNotInUiThread(progress);
return;
}else{
setProgressNotInUiThread(currentProgress);
currentProgress+=fp;
}
try{
Thread.sleep(5);
}catch(InterruptedExceptione) {
e.printStackTrace();
}
}
}
}).start();
}
}
网友评论