Move FeedbackSender instantiation to getInstance()

Author: lfkellogg

firebase-appdistribution/src/main/java/com/google/firebase/appdistribution/impl/FeedbackActivity.java

@@ -20,7 +20,6 @@
 import android.widget.EditText;
 import android.widget.Toast;
 import androidx.appcompat.app.AppCompatActivity;
-import com.google.firebase.FirebaseApp;
 
 /** Activity for tester to compose and submit feedback. */
 public class FeedbackActivity extends AppCompatActivity {
@@ -41,7 +40,7 @@ protected void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
     releaseName = getIntent().getStringExtra(RELEASE_NAME_EXTRA_KEY);
     screenshot = getIntent().getParcelableExtra(SCREENSHOT_EXTRA_KEY);
-    feedbackSender = FirebaseApp.getInstance().get(FeedbackSender.class);
+    feedbackSender = FeedbackSender.getInstance();
     setContentView(R.layout.activity_feedback);
   }
 

firebase-appdistribution/src/main/java/com/google/firebase/appdistribution/impl/FeedbackSender.java

@@ -15,7 +15,11 @@
 package com.google.firebase.appdistribution.impl;
 
 import android.graphics.Bitmap;
+import androidx.annotation.NonNull;
 import com.google.android.gms.tasks.Task;
+import com.google.firebase.FirebaseApp;
+import com.google.firebase.appdistribution.FirebaseAppDistribution;
+import com.google.firebase.appdistribution.internal.FirebaseAppDistributionProxy;
 
 /** Sends tester feedback to the Tester API. */
 class FeedbackSender {
@@ -26,6 +30,11 @@ class FeedbackSender {
     this.testerApiClient = testerApiClient;
   }
 
+  @NonNull
+  static FeedbackSender getInstance() {
+    return FirebaseApp.getInstance().get(FeedbackSender.class);
+  }
+
   /** Send feedback text and screenshot to the Tester API for the given release. */
   Task<Void> sendFeedback(String releaseName, String feedbackText, Bitmap screenshot) {
     return testerApiClient