public class CirlcleProgress
extends View {
public CirlcleProgress(Context context) {
super(context);
}
Paint
mPaint;
public CirlcleProgress(Context context,
@Nullable AttributeSet attrs) {
super(context, attrs);
mPaint =
new Paint();
new Thread(
new Runnable() {
@Override
public void run() {
while (
true){
if(
progress >
360){
return;
}
postInvalidate();
try {
Thread.
sleep(
100);
}
catch (InterruptedException e) {
e.printStackTrace();
}
progress +=
2 ;
}
}
}).start();
}
public CirlcleProgress(Context context,
@Nullable AttributeSet attrs,
int defStyleAttr) {
super(context, attrs, defStyleAttr);
}
int radioWidth =
30 ;
int progress =
0 ;
int max =
360;
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
int center = getWidth() /
2 ;
int radius = center -
radioWidth ;
mPaint.setColor(Color.
RED);
mPaint.setStyle(Paint.Style.
FILL_AND_STROKE);
mPaint.setAntiAlias(
true);
canvas.drawCircle(center,center,radius,
mPaint);
mPaint.setStrokeWidth(
8);
mPaint.setColor(Color.
GREEN);
mPaint.setStyle(Paint.Style.
STROKE);
RectF rectF =
new RectF(center-radius,center-radius,center+radius,center+radius);
System.
out.println(
"progress = " +
progress);
canvas.drawArc(rectF,-
90,
progress,
false,
mPaint);
mPaint.setColor(Color.
BLACK);
mPaint.setStyle(Paint.Style.
FILL);
int percent =
progress;
//中间的进度百分比，先转换成float在进行除法运算，不然都为0
float textWidth =
mPaint.measureText(percent+
" % ");
mPaint.setTextSize(
20);
canvas.drawText((
float)
progress/(
float)
360 *
100 +
"%",center,center,
mPaint);
}
}
