Update test app.

Author: rosalyntan

appcheck/firebase-appcheck/test-app/src/main/java/com/googletest/firebase/appcheck/MainActivity.java

@@ -26,7 +26,7 @@
 import com.google.android.gms.tasks.OnSuccessListener;
 import com.google.android.gms.tasks.Task;
 import com.google.firebase.FirebaseApp;
-import com.google.firebase.appcheck.AppCheckTokenResult;
+import com.google.firebase.appcheck.AppCheckToken;
 import com.google.firebase.appcheck.FirebaseAppCheck;
 import com.google.firebase.appcheck.debug.DebugAppCheckProviderFactory;
 import com.google.firebase.appcheck.safetynet.SafetyNetAppCheckProviderFactory;
@@ -96,30 +96,21 @@ public void onClick(View v) {
         new OnClickListener() {
           @Override
           public void onClick(View v) {
-            Task<AppCheckTokenResult> task = firebaseAppCheck.getToken(/* forceRefresh= */ false);
+            Task<AppCheckToken> task = firebaseAppCheck.getAppCheckToken(/* forceRefresh= */ true);
             task.addOnSuccessListener(
-                new OnSuccessListener<AppCheckTokenResult>() {
+                new OnSuccessListener<AppCheckToken>() {
                   @Override
-                  public void onSuccess(AppCheckTokenResult appCheckTokenResult) {
-                    if (appCheckTokenResult.getError() == null) {
-                      Log.d(TAG, "Successfully retrieved AppCheck token.");
-                      showToast("Successfully retrieved AppCheck token.");
-                    } else {
-                      Log.d(
-                          TAG,
-                          "AppCheck token exchange failed with error: "
-                              + appCheckTokenResult.getError().getMessage());
-                      showToast("AppCheck token exchange failed.");
-                    }
+                  public void onSuccess(AppCheckToken appCheckToken) {
+                    Log.d(TAG, "Successfully retrieved AppCheck token.");
+                    showToast("Successfully retrieved AppCheck token.");
                   }
                 });
             task.addOnFailureListener(
                 new OnFailureListener() {
                   @Override
                   public void onFailure(@NonNull Exception e) {
-                    // This should not happen; the task should always return with a success.
-                    Log.e(TAG, "Unexpected failure in getToken: " + e.toString());
-                    showToast("Unexpected failure in getToken.");
+                    Log.d(TAG, "AppCheck token exchange failed with error: " + e.getMessage());
+                    showToast("AppCheck token exchange failed.");
                   }
                 });
           }