SimulationPageAnim.java 文件源码

private void drawCurrentPageArea(Canvas canvas, Bitmap bitmap, Path path) {
    mPath0.reset();
    mPath0.moveTo(mBezierStart1.x, mBezierStart1.y);
    mPath0.quadTo(mBezierControl1.x, mBezierControl1.y, mBezierEnd1.x,
            mBezierEnd1.y);
    mPath0.lineTo(mTouchX, mTouchY);
    mPath0.lineTo(mBezierEnd2.x, mBezierEnd2.y);
    mPath0.quadTo(mBezierControl2.x, mBezierControl2.y, mBezierStart2.x,
            mBezierStart2.y);
    mPath0.lineTo(mCornerX, mCornerY);
    mPath0.close();

    canvas.save();
    canvas.clipPath(path, Region.Op.XOR);
    canvas.drawBitmap(bitmap, 0, 0, null);
    try {
        canvas.restore();
    } catch (Exception e) {

    }

}