Added feature for surveys provider to Settings

am: cd0fe608c5

Change-Id: I13ceb5009800cb25483d85220c0ec22051f79cbe

src/com/android/settings/overlay/FeatureFactory.java

@@ -61,6 +61,8 @@ public abstract class FeatureFactory {
 
     public abstract SupportFeatureProvider getSupportFeatureProvider(Context context);
 
+    public abstract SurveyFeatureProvider getSurveyFeatureProvider(Context context);
+
     public static final class FactoryNotFoundException extends RuntimeException {
         public FactoryNotFoundException(Throwable throwable) {
             super("Unable to create factory. Did you misconfigure Proguard?", throwable);

src/com/android/settings/overlay/FeatureFactoryImpl.java

@@ -17,15 +17,22 @@
 package com.android.settings.overlay;
 
 import android.content.Context;
+import android.support.annotation.Keep;
 
 /**
  * {@link FeatureFactory} implementation for AOSP Settings.
  */
-public final class FeatureFactoryImpl extends FeatureFactory {
+@Keep
+public class FeatureFactoryImpl extends FeatureFactory {
 
     @Override
     public SupportFeatureProvider getSupportFeatureProvider(Context context) {
         return null;
     }
 
+    @Override
+    public SurveyFeatureProvider getSurveyFeatureProvider(Context context) {
+        return null;
+    }
+
 }

src/com/android/settings/overlay/SurveyFeatureProvider.java

@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2016 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.overlay;
+
+import android.app.Activity;
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.IntentFilter;
+import android.support.annotation.Nullable;
+
+/**
+ * An interface for classes wishing to provide the ability to serve surveys to implement.
+ */
+public interface SurveyFeatureProvider {
+
+    /**
+     * Downloads a survey asynchronously to shared preferences to be served at a later date.
+     *
+     * @param activity A valid context.
+     * @param surveyId A unique Id representing a survey to download.
+     * @param data a text blob to be attached to the survey results.
+     */
+    void downloadSurvey(Activity activity, String surveyId, @Nullable String data);
+
+    /**
+     * Shows a previously downloaded survey/prompt if possible in the activity provided.
+     *
+     * @param activity The host activity to show the survey in.
+     * @param surveyId A unique Id representing a survey to download.
+     */
+    void showSurveyIfAvailable(Activity activity, String surveyId);
+
+    /**
+     * A helper method to get the surveyId. Implementers should create a mapping of
+     * keys to surveyIds and provide them via this function.
+     *
+     * @param context A valid context.
+     * @param key The key to get the surveyId for.
+     * @return The unique Id as a string or null on error.
+     */
+    String getSurveyId(Context context, String key);
+}