Android 垂直翻转 ImageView

如何在 Android 中实现垂直翻转 ImageView

xml
    android:id="@+id/imageView"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:src="@drawable/my_image" />

java
ImageView imageView = findViewById(R.id.imageView);
Drawable originalDrawable = imageView.getDrawable();
if (originalDrawable instanceof BitmapDrawable) {
    Bitmap originalBitmap = ((BitmapDrawable) originalDrawable).getBitmap();
    Matrix matrix = new Matrix();
    matrix.setScale(1, -1); // 垂直翻转
    Bitmap flippedBitmap = Bitmap.createBitmap(originalBitmap, 0, 0, originalBitmap.getWidth(), originalBitmap.getHeight(), matrix, true);
    imageView.setImageBitmap(flippedBitmap);
}