安卓:如何在ImageView旋转后拥有裁剪的图像？

// 获取ImageView的绘制缓存
imageView.setDrawingCacheEnabled(true);
Bitmap originalBitmap = Bitmap.createBitmap(imageView.getDrawingCache());
imageView.setDrawingCacheEnabled(false);

// 创建旋转矩阵
Matrix matrix = new Matrix();
matrix.setRotate(rotationAngle);

// 旋转图像
Bitmap rotatedBitmap = Bitmap.createBitmap(originalBitmap, 0, 0, originalBitmap.getWidth(), originalBitmap.getHeight(), matrix, true);

// 获取旋转后图像的边界矩形
RectF rectF = new RectF(0, 0, rotatedBitmap.getWidth(), rotatedBitmap.getHeight());
matrix.mapRect(rectF);

// 创建裁剪后的图像
Bitmap croppedBitmap = Bitmap.createBitmap(rotatedBitmap, (int) rectF.left, (int) rectF.top, (int) rectF.width(), (int) rectF.height());

// 将裁剪后的图像显示在ImageView中
imageView.setImageBitmap(croppedBitmap);