How does one use glide to download an image into a bitmap?

Android Problem Overview

Downloading a URL into an ImageView is very easy using Glide:

Glide
   .with(context)
   .load(getIntent().getData())
   .placeholder(R.drawable.ic_loading)
   .centerCrop()
   .into(imageView);

I'm wondering if I can download into a Bitmap as well? I'd like to download into a raw bitmap that I can then manipulate using other tools. I've been through the code and don't see how to do it.

Android Solutions

Solution 1 - Android

Make sure you are on the Lastest version

implementation 'com.github.bumptech.glide:glide:4.10.0'

Kotlin:

Glide.with(this)
        .asBitmap()
        .load(imagePath)
        .into(object : CustomTarget<Bitmap>(){
            override fun onResourceReady(resource: Bitmap, transition: Transition<in Bitmap>?) {
                imageView.setImageBitmap(resource)
            }
            override fun onLoadCleared(placeholder: Drawable?) {
                // this is called when imageView is cleared on lifecycle call or for
                // some other reason.
                // if you are referencing the bitmap somewhere else too other than this imageView
                // clear it here as you can no longer have the bitmap
            }
        })

Bitmap Size:

if you want to use the original size of the image use the default constructor as above, else You can pass your desired size for bitmap

into(object : CustomTarget<Bitmap>(1980, 1080)

Java:

Glide.with(this)
		.asBitmap()
		.load(path)
		.into(new CustomTarget<Bitmap>() {
			@Override
			public void onResourceReady(@NonNull Bitmap resource, @Nullable Transition<? super Bitmap> transition) {
				imageView.setImageBitmap(resource);
			}
				
			@Override
			public void onLoadCleared(@Nullable Drawable placeholder) {
			}
		});

Old Answer:

With compile 'com.github.bumptech.glide:glide:4.8.0' and below

Glide.with(this)
        .asBitmap()
        .load(path)
        .into(new SimpleTarget<Bitmap>() {
            @Override
            public void onResourceReady(Bitmap resource, Transition<? super Bitmap> transition) {
                imageView.setImageBitmap(resource);
            }
        });

For compile 'com.github.bumptech.glide:glide:3.7.0' and below

Glide.with(this)
        .load(path)
        .asBitmap()
        .into(new SimpleTarget<Bitmap>() {
            @Override
            public void onResourceReady(Bitmap resource, GlideAnimation<? super Bitmap> glideAnimation) {
                imageView.setImageBitmap(resource);
            }
        });

Now you might see a warning SimpleTarget is deprecated

Reason:

> The main point of deprecating SimpleTarget is to warn you about the > ways in which it tempts you to break Glide's API contract. > Specifically, it doesn't do anything to force you to stop using any > resource you've loaded once the SimpleTarget is cleared, which can > lead to crashes and graphical corruption.

The SimpleTarget still can be used as long you make sure you are not using the bitmap once the imageView is cleared.

Solution 2 - Android

I'm not familiar enough with Glide, but it looks like if you know the target size, you can use something like this:

Bitmap theBitmap = Glide.
        with(this).
        load("http://....").
        asBitmap().
        into(100, 100). // Width and height
        get();

It looks like you can pass -1,-1, and get a full size image (purely based on tests, can't see it documented).

Note into(int,int) returns a FutureTarget<Bitmap>, so you have to wrap this in a try-catch block covering ExecutionException and InterruptedException. Here's a more complete example implementation, tested and working:

class SomeActivity extends Activity {

    private Bitmap theBitmap = null;
        
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // onCreate stuff ...
        final ImageView image = (ImageView) findViewById(R.id.imageView);

        new AsyncTask<Void, Void, Void>() {
            @Override
            protected Void doInBackground(Void... params) {
                Looper.prepare();
                try {
                    theBitmap = Glide.
                        with(SomeActivity.this).
                        load("https://www.google.es/images/srpr/logo11w.png").
                        asBitmap().
                        into(-1,-1).
                        get();
                 } catch (final ExecutionException e) {
                     Log.e(TAG, e.getMessage());
                 } catch (final InterruptedException e) {
                     Log.e(TAG, e.getMessage());
                 }
                 return null;
            }
            @Override
            protected void onPostExecute(Void dummy) {
                if (null != theBitmap) {
                    // The full bitmap should be available here
                    image.setImageBitmap(theBitmap);
                    Log.d(TAG, "Image loaded");
                };
            }
        }.execute();
    }
}

Following Monkeyless' suggestion in the comment below (and this appears to be the official way too), you can use a SimpleTarget, optionally coupled with override(int,int) to simplify the code considerably. However, in this case the exact size must be provided (anything below 1 isn't accepted):

Glide
    .with(getApplicationContext())
    .load("https://www.google.es/images/srpr/logo11w.png")
    .asBitmap()
    .into(new SimpleTarget<Bitmap>(100,100) {
        @Override
        public void onResourceReady(Bitmap resource, GlideAnimation glideAnimation) {
            image.setImageBitmap(resource); // Possibly runOnUiThread()
        }
    });

as suggested by @hennry if you required the same image then use new SimpleTarget<Bitmap>()

UPDATE

 bitmap = Glide.with(c).asBitmap().load( "url").submit().get();

Solution 3 - Android

It looks like overriding the Target class or one of the implementations like BitmapImageViewTarget and overriding the setResource method to capture the bitmap might be the way to go...

This is untested. :-)

    Glide.with(context)
         .load("http://goo.gl/h8qOq7")
         .asBitmap()
         .into(new BitmapImageViewTarget(imageView) {
                     @Override
                     protected void setResource(Bitmap resource) {
                         // Do bitmap magic here
                         super.setResource(resource);
                     }
         });

Solution 4 - Android