GlideImageRotate

Android Rotate and Mirror for Glide images.

Basic example implemantation of get image as a Bitmap via Glide (that we can save to a file or upload later) and rotate that Bitmap 90, 180 or 270 degrees and even mirrored. used Glide 4.8.0.

Demo

Code

To get Glide image to Bitmap file

private Bitmap theBitmap;
private ImageView iv;

Glide
                .with(getApplicationContext()).asBitmap()
                .load("https://source.unsplash.com/500x500/daily/?car")
                .into(new SimpleTarget<Bitmap>() {

                    @Override
                    public void onResourceReady(@NonNull Bitmap resource, @Nullable Transition<? super Bitmap> transition) {
                        theBitmap =resource;
                        iv.setImageBitmap(theBitmap);
                    }
                });

To rotate Bitmap

    public Bitmap RotateBitmap(Bitmap source, float angle)
    {
        Matrix matrix = new Matrix();
        matrix.postRotate(angle);
        return Bitmap.createBitmap(source, 0, 0, source.getWidth(), source.getHeight(), matrix, true);
    }

To flip

This will mirror vertically, if need horizontal flip use as m.preScale(1, -1);

    public Bitmap flip(Bitmap source)
    {
        Matrix m = new Matrix();
        m.preScale(-1, 1);
       return Bitmap.createBitmap(source, 0, 0, source.getWidth(), source.getHeight(), m, false);
    }