如何从ImageView获取缩放的位图

Drawable drawable = imageView.getDrawable();

if (drawable instanceof BitmapDrawable) {
    // 是BitmapDrawable类型，可以直接获取Bitmap对象
    Bitmap bitmap = ((BitmapDrawable) drawable).getBitmap();
} else {
    // 不是BitmapDrawable类型，需要将Drawable转换为Bitmap
    Bitmap bitmap = Bitmap.createBitmap(drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight(), Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(bitmap);
    drawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
    drawable.draw(canvas);
}

float scaleFactor = (float) drawable.getIntrinsicWidth() / (float) imageView.getWidth();

int scaledWidth = (int) (drawable.getIntrinsicWidth() / scaleFactor);
int scaledHeight = (int) (drawable.getIntrinsicHeight() / scaleFactor);
Bitmap scaledBitmap = Bitmap.createScaledBitmap(bitmap, scaledWidth, scaledHeight, true);