Android 自定义View Clip

先画俩矩形

          RectF rectF = new RectF(0,0,300,300);         canvas.drawRect(rectF,mPaint);          mPaint.setColor(Color.GREEN);          RectF rectF2 = new RectF(400,400,600,600);         canvas.drawRect(rectF2,mPaint);

然后说是有讲究

          canvas.clipRect(0, 0, 300, 300); //        canvas.clipRect(200, 200, 500, 500, Region.Op.DIFFERENCE);           RectF rectF = new RectF(0,0,300,300);         canvas.drawRect(rectF,mPaint);          mPaint.setColor(Color.GREEN);          RectF rectF2 = new RectF(200,200,500,500);         canvas.drawRect(rectF2,mPaint);

     canvas.clipRect(0, 0, 300, 300);         canvas.clipRect(200, 200, 500, 500, Region.Op.DIFFERENCE);           RectF rectF = new RectF(0,0,300,300);         canvas.drawRect(rectF,mPaint);          mPaint.setColor(Color.GREEN);          RectF rectF2 = new RectF(200,200,500,500);         canvas.drawRect(rectF2,mPaint);

第二个

   canvas.clipRect(0, 0, 300, 300);         canvas.clipRect(200, 200, 500, 500, Region.Op.INTERSECT);           RectF rectF = new RectF(0,0,300,300);         canvas.drawRect(rectF,mPaint);          mPaint.setColor(Color.GREEN);          RectF rectF2 = new RectF(200,200,500,500);         canvas.drawRect(rectF2,mPaint);

     canvas.clipRect(0, 0, 300, 300, Region.Op.DIFFERENCE);         canvas.clipRect(200, 200, 500, 500);          RectF rectF = new RectF(0, 0, 300, 300);         canvas.drawRect(rectF, mPaint);          mPaint.setColor(Color.GREEN);          RectF rectF2 = new RectF(200, 200, 500, 500);         canvas.drawRect(rectF2, mPaint);

       if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {          canvas.clipPath(path);      } else {          canvas.clipPath(path, Region.Op.XOR);// REPLACE、UNION 等类型      }

      canvas.clipRect(200, 200, 500, 500, Region.Op.INTERSECT);           RectF rectF = new RectF(0, 0, 300, 300);         canvas.drawRect(rectF, mPaint);          canvas.clipRect(0, 0, 300, 300, Region.Op.DIFFERENCE);          mPaint.setColor(Color.GREEN);          RectF rectF2 = new RectF(200, 200, 500, 500);         canvas.drawRect(rectF2, mPaint);

来源：51CTO

作者：飞天猪°

链接：https://blog.csdn.net/FlyPig_Vip/article/details/100894973

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