如何在画布和路径中进行抗锯齿处理

Question

我遇到麻烦当我使用canvas.clipPath,它显示锯齿,它看起来不顺利,我知道如果我使用Paint,我可以使用mPaint.setFlags(Paint.ANTI_ALIAS_FLAG),这可以抗锯齿,但在我的代码中,我不能用油漆.

public static void drawCurrentPageArea(Canvas canvas, Bitmap bitmap) {
    //cebakhja


    canvas.save();
    canvas.clipPath(getPath5(), Region.Op.XOR);
    canvas.drawBitmap(bitmap, 0, 0, null);
    canvas.restore();
}

public static Path getPath5()
{
    Path mPath5 = new Path();

    mPath5.moveTo(ptc.x, ptc.y);
    mPath5.quadTo(pte.x, pte.y, ptb.x,ptb.y);
    mPath5.lineTo(pta.x, pta.y);
    mPath5.lineTo(ptk.x, ptk.y);
    mPath5.quadTo(pth.x, pth.y, ptj.x,ptj.y);
    mPath5.lineTo(ptf.x, ptf.y);
    mPath5.close();
    return mPath5;
}

你可以看到我使用canvas.drawBitmap(bitmap,0,0,null); paint是null.如果我需要添加一个颜料,你能有一些建议吗？图为http://i.6.cn/cvbnm/36/5c/20/5d8d20e3bafe432d792793509f99131e.jpg

编辑:我设置的绘画为空,但不是效果

Answer 1

试试这个.

private Paint mBitmapPaint = new Paint() {
    {
        setAntiAlias(true);
        setFilterBitmap(true);
    }
};

public static void drawCurrentPageArea(Canvas canvas, Bitmap bitmap) {
    // cebakhja
    canvas.save();
    canvas.clipPath(getPath5(), Region.Op.XOR);
    canvas.drawBitmap(bitmap, 0, 0, mBitmapPaint);
    canvas.restore();
}