Move the launch activity button to the toolbar

Test: Manual
Change-Id: I81155492b39d6c72b0976a738a90ed00226bc1e8

samples/IntentPlayground/src/com/example/android/intentplayground/LaunchFragment.java

@@ -1,7 +1,26 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package com.example.android.intentplayground;
 
 import android.os.Bundle;
 import android.view.LayoutInflater;
+import android.view.Menu;
+import android.view.MenuInflater;
+import android.view.MenuItem;
 import android.view.View;
 import android.view.ViewGroup;
 
@@ -17,17 +36,22 @@ import com.example.android.intentplayground.IntentBuilderView.OnLaunchCallback;
 public class LaunchFragment extends Fragment {
     private IntentBuilderView mIntentBuilderView;
     private BaseActivityViewModel mViewModel;
+    private OnLaunchCallback mOnLaunchCallback;
 
     @Nullable
     @Override
     public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container,
             @Nullable Bundle savedInstanceState) {
         mIntentBuilderView = new IntentBuilderView(getContext(), Mode.LAUNCH);
-        setOnLaunchCallBack();
+        FragmentActivity activity = getActivity();
+        if (activity instanceof OnLaunchCallback) {
+            mOnLaunchCallback = (OnLaunchCallback) activity;
+        }
+
+        setHasOptionsMenu(true);
         return mIntentBuilderView;
     }
 
-
     @Override
     public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
         mViewModel = (new ViewModelProvider(getActivity(),
@@ -40,10 +64,19 @@ public class LaunchFragment extends Fragment {
         mViewModel.actOnFab(BaseActivityViewModel.FabAction.Hide);
     }
 
-    private void setOnLaunchCallBack() {
-        FragmentActivity activity = this.getActivity();
-        if (activity instanceof OnLaunchCallback) {
-            mIntentBuilderView.setOnLaunchCallback((OnLaunchCallback) activity);
+    @Override
+    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
+        inflater.inflate(R.menu.launch_menu, menu);
+
+        super.onCreateOptionsMenu(menu, inflater);
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        if (item.getItemId() == R.id.app_bar_launch && mOnLaunchCallback != null) {
+            mOnLaunchCallback.launchActivity(mIntentBuilderView.currentIntent());
         }
+
+        return super.onOptionsItemSelected(item);
     }
 }