Add tutorial dialog for gesture navigation

Add new tutorial dialog for gesture navigation in order to teach
users how to use the gesture

Fixes: 133650388
Test: Manual
Change-Id: I7cc6a950af49044b27cf7ca41e3bcf67ef40b5fd

src/com/android/settings/SettingsTutorialDialogWrapperActivity.java

@@ -0,0 +1,42 @@
+/*
+ * 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.android.settings;
+
+import android.app.Activity;
+import android.os.Bundle;
+
+import com.android.settings.accessibility.AccessibilityGestureNavigationTutorial;
+import com.android.settings.R;
+
+/**
+ * This activity is to create the tutorial dialog in gesture navigation settings since we couldn't
+ * use the dialog utils because SystemNavigationGestureSettings extends RadioButtonPickerFragment,
+ * not SettingsPreferenceFragment.
+ */
+public class SettingsTutorialDialogWrapperActivity extends Activity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        showDialog();
+    }
+
+    private void showDialog() {
+        AccessibilityGestureNavigationTutorial
+                .showGestureNavigationSettingsTutorialDialog(this, dialog -> finish());
+    }
+}