BottomItemView.java 文件源码-java代码片段

BottomItemView.java 文件源码

java

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项目：BigApp_Discuz_Android 作者:

private void drawSourceBitmap(Canvas canvas,int alpha) {
    mPaint.setColor(mNormalColor);
    mPaint.setAntiAlias(true);
    mPaint.setDither(true);
    mPaint.setAlpha(255);
    mCanvas.drawRect(mIconRect, mPaint);
    mPaint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.DST_IN));
    mPaint.setAlpha(255-alpha);

    mCanvas.setDrawFilter(new PaintFlagsDrawFilter(0, Paint.ANTI_ALIAS_FLAG | Paint.FILTER_BITMAP_FLAG));
    mCanvas.drawBitmap(mIconBitmapNormal, mIconRect.left, mIconRect.top, mPaint);
    canvas.drawBitmap(mBitmap, 0, 0, null);
}