Added else block to show Toast. We can handle this more elegantly with AdobeUXAssetBrowserConfiguration filters.

Author: ashryanbeats

asset-browser-ui/app/src/main/java/com/adobe/assetbrowserui/MainActivity.java

@@ -14,6 +14,7 @@
 import android.view.View;
 import android.widget.Button;
 import android.widget.ImageView;
+import android.widget.Toast;
 
 import com.adobe.creativesdk.foundation.auth.AdobeAuthException;
 import com.adobe.creativesdk.foundation.auth.AdobeAuthSessionHelper;
@@ -194,6 +195,10 @@ public void onProgress(double v) {
                         photoAsset.downloadRendition(renditionMap.get(AdobePhotoAsset.AdobePhotoAssetRenditionImage2048), downloadCallBack);
                     }
 
+                    else {
+                        Toast.makeText(MainActivity.this, "Please choose a Lightroom Photo", Toast.LENGTH_LONG).show();
+                    }
+
                     break;
             }
         }