Add cast custom images on sender screen (Album Art)

How to set the custom images on the chromecast sender screen

Custom images can be set by extending ImagePicker, See following example. Now ImagePickerImpl will send the custom images to the sender app

Read more about it on : https://developers.google.com/android/reference/com/google/android/gms/cast/framework/media/widget/ExpandedControllerActivity https://developers.google.com/android/reference/com/google/android/gms/cast/framework/media/widget/MiniControllerFragment

class ImagePickerImpl extends ImagePicker {

    public static final int WIDTH = 100; //<set width>;
    public static final int HEIGHT = 200; //<set width>;

    @Override
    // this will add image on ExpandedControllerActivity and MiniController Activity
    public WebImage onPickImage(@NonNull MediaMetadata mediaMetadata, ImageHints hints) {
        JSONObject var1 = new JSONObject();
        try {
            var1.put("url", CUSTOM_CAST_ALBUM_ART_THUMBNAIL_URL);
            var1.put("width", WIDTH);
            var1.put("height", HEIGHT);
        } catch (JSONException ignored) {
        }
        return new WebImage(var1);
    }
}

Use ImagePickerImpl in the CastOptions

public class ReferenceAppCastProvider extends EnigmaCastOptionsProvider {

    //...

    @Override
    protected void buildCastOptions(CastOptions.Builder builder) {
        super.buildCastOptions(builder);
        CastMediaOptions castMediaOptions = new CastMediaOptions.Builder()
                .setMediaSessionEnabled(true)
                .setImagePicker(new ImagePickerImpl())
                .setExpandedControllerActivityClassName(ExpandedControlActivity.class.getName()).build();
        builder.setCastMediaOptions(castMediaOptions);
    }
}

Add castOptionsProvider in the AndroidManifest xml

<meta-data android:name="com.google.android.gms.cast.framework.OPTIONS_PROVIDER_CLASS_NAME"
    android:value="com.redbeemedia.enigma.referenceapp.cast.ReferenceAppCastProvider" />

Also recommended to use 'ExpandedControlActivity' where the album art will be shown

public class ExpandedControlActivity extends ExpandedControllerActivity {

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        super.onCreateOptionsMenu(menu);
        getMenuInflater().inflate(R.menu.expanded_controller, menu);
        CastButtonFactory.setUpMediaRouteButton(this, menu, R.id.media_route_menu_item);
        return true;
    }
}

<activity android:name="com.redbeemedia.enigma.referenceapp.cast.ExpandedControlActivity"
    android:exported="true" android:launchMode="singleTask" tools:node="merge">
    <intent-filter>
        <action android:name="android.intent.action.MAIN" />
    </intent-filter>
    <meta-data android:name="android.support.PARENT_ACTIVITY"
        android:value="com.redbeemedia.enigma.referenceapp.PlayerActivity" />
</activity>

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