使用Android Studio和ImageView将图像保存为垂直图像

<ImageView
    android:id="@+id/imageView"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:scaleType="fitXY"
    android:src="@drawable/your_image" />

ImageView imageView = findViewById(R.id.imageView);
Bitmap originalBitmap = ((BitmapDrawable) imageView.getDrawable()).getBitmap();

Matrix matrix = new Matrix();
matrix.postRotate(90);

Bitmap rotatedBitmap = Bitmap.createBitmap(originalBitmap, 0, 0, originalBitmap.getWidth(), originalBitmap.getHeight(), matrix, true);

FileOutputStream outputStream;
try {
    outputStream = new FileOutputStream("path_to_save/vertical_image.jpg");
    rotatedBitmap.compress(Bitmap.CompressFormat.JPEG, 100, outputStream);
    outputStream.flush();
    outputStream.close();
} catch (IOException e) {
    e.printStackTrace();
}