摘要：
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：http://hi.baidu.com/fgfd0/blog/item/27b33dadfded66184b36d63e.html 阅读全文
