Android空心圆及层叠效果实现代码
本文实例为大家分享了Android空心圆及层叠效果的具体代码，供大家参考，具体内容如下
packagecom.bwei.test.zidingyiview2;
importandroid.content.Context;
importandroid.graphics.Canvas;
importandroid.graphics.Color;
importandroid.graphics.Paint;
importandroid.util.AttributeSet;
importandroid.view.View;
publicclassMyViewextendsView{
privateContextmcontext;
privatePaintmpaint;
publicMyView(Contextcontext){
super(context);
}
publicMyView(Contextcontext,AttributeSetattrs){
super(context,attrs);
}
publicMyView(Contextcontext,AttributeSetattrs,intdefStyleAttr){
super(context,attrs,defStyleAttr);
this.mcontext=context;
}
@Override
protectedvoidonDraw(Canvascanvas){
super.onDraw(canvas);
//得到屏幕宽高
floatwi=canvas.getWidth()/2;
floathe=canvas.getHeight()/2;
//创建第一个画笔
Paintpa=newPaint();
//上色
pa.setColor(Color.GREEN);
//显示圆边
pa.setAntiAlias(true);
//设置空心圆环
pa.setStyle(Paint.Style.STROKE);
//设置圆环宽度
pa.setStrokeWidth(6);
Paintpa2=newPaint();
pa2.setColor(Color.BLUE);
pa2.setAntiAlias(true);
Paintpa3=newPaint();
pa3.setColor(Color.BLACK);
pa3.setAntiAlias(true);
//画什么圆
canvas.drawCircle(wi-85,he-85,80,pa2);
canvas.drawCircle(wi,he,100,pa);
canvas.drawCircle(wi+110,he+110,120,pa3);
}
}
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持毛票票。