Paint paint = new Paint();
paint.setColor(Color.BLUE); paint.setAlpha(0x40); canvas.drawText("Hello", 0, 0, paint);此处要注意
paint.setColor(Color.BLUE); paint.setAlpha(0x40);的顺序。
参考：
本文共 248 字，大约阅读时间需要 1 分钟。
Paint paint = new Paint();
paint.setColor(Color.BLUE); paint.setAlpha(0x40); canvas.drawText("Hello", 0, 0, paint);此处要注意
paint.setColor(Color.BLUE); paint.setAlpha(0x40);的顺序。
参考：
转载于:https://www.cnblogs.com/jisheng/archive/2012/01/09/2317136.html