6.03 Implementing a Sync Adapter

Author: Lyla

app/src/main/AndroidManifest.xml

@@ -5,6 +5,14 @@
     <!-- This permission is necessary in order for Sunshine to perform network access. -->
     <uses-permission android:name="android.permission.INTERNET" />
 
+    <!-- Permissions required by the sync adapter -->
+    <uses-permission
+        android:name="android.permission.READ_SYNC_SETTINGS"/>
+    <uses-permission
+        android:name="android.permission.WRITE_SYNC_SETTINGS"/>
+    <uses-permission
+        android:name="android.permission.AUTHENTICATE_ACCOUNTS"/>
+
     <application
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"
@@ -39,10 +47,32 @@
         </activity>
         <provider
             android:authorities="com.example.android.sunshine.app"
-            android:name=".data.WeatherProvider" />
+            android:name=".data.WeatherProvider"
+            android:exported="false"
+            android:syncable="true" />
+
+        <!-- SyncAdapter's dummy authentication service -->
+        <service android:name=".sync.SunshineAuthenticatorService">
+            <intent-filter>
+                <action android:name="android.accounts.AccountAuthenticator" />
+            </intent-filter>
+            <meta-data
+                android:name="android.accounts.AccountAuthenticator"
+                android:resource="@xml/authenticator" />
+        </service>
 
-        <service android:name=".service.SunshineService"/>
-        <receiver android:name=".service.SunshineService$AlarmReceiver" android:enabled="true"/>
+        <!-- The SyncAdapter service -->
+        <service
+            android:name=".sync.SunshineSyncService"
+            android:exported="true"
+            >
+            <intent-filter>
+                <action android:name="android.content.SyncAdapter" />
+            </intent-filter>
+            <meta-data
+                android:name="android.content.SyncAdapter"
+                android:resource="@xml/syncadapter" />
+        </service>
     </application>
 
 </manifest>

app/src/main/java/com/example/android/sunshine/app/ForecastFragment.java

@@ -15,10 +15,6 @@
  */
 package com.example.android.sunshine.app;
 
-import android.app.AlarmManager;
-import android.app.PendingIntent;
-import android.content.Context;
-import android.content.Intent;
 import android.database.Cursor;
 import android.net.Uri;
 import android.os.Bundle;
@@ -36,7 +32,7 @@
 import android.widget.ListView;
 
 import com.example.android.sunshine.app.data.WeatherContract;
-import com.example.android.sunshine.app.service.SunshineService;
+import com.example.android.sunshine.app.sync.SunshineSyncAdapter;
 
 /**
  * Encapsulates fetching the forecast and displaying it as a {@link ListView} layout.
@@ -184,16 +180,9 @@ void onLocationChanged( ) {
     }
 
     private void updateWeather() {
-        Intent alarmIntent = new Intent(getActivity(), SunshineService.AlarmReceiver.class);
-        alarmIntent.putExtra(SunshineService.LOCATION_QUERY_EXTRA, Utility.getPreferredLocation(getActivity()));
-
-        //Wrap in a pending intent which only fires once.
-        PendingIntent pi = PendingIntent.getBroadcast(getActivity(), 0,alarmIntent,PendingIntent.FLAG_ONE_SHOT);//getBroadcast(context, 0, i, 0);
-
-        AlarmManager am=(AlarmManager)getActivity().getSystemService(Context.ALARM_SERVICE);
-
-        //Set the AlarmManager to wake up the system.
-        am.set(AlarmManager.RTC_WAKEUP, System.currentTimeMillis() + 5000, pi);
+        //String location = Utility.getPreferredLocation(getActivity());
+        //new FetchWeatherTask(getActivity()).execute(location);
+        SunshineSyncAdapter.syncImmediately(getActivity());
     }
 
     @Override