MyImageView.java 文件源码

@Override
protected void onDraw(Canvas canvas) {
    super.onDraw(canvas);
    if (isFirst) {
        isFirst = false;
        init();
    }
    canvas.setDrawFilter(new PaintFlagsDrawFilter(0, Paint.ANTI_ALIAS_FLAG
            | Paint.FILTER_BITMAP_FLAG));
}