Add user initialing receiver to select a unique wallpaper.

Change-Id: I14652d8108c2e19db821ab5526b6e630db8fe998

Android.mk

@@ -22,7 +22,7 @@ LOCAL_MODULE_TAGS := optional
 LOCAL_STATIC_JAVA_LIBRARIES := android-common android-support-v13
 
 LOCAL_SRC_FILES := $(call all-java-files-under, src) $(call all-renderscript-files-under, src)
-LOCAL_SDK_VERSION := 16
+LOCAL_SDK_VERSION := current
 
 LOCAL_PACKAGE_NAME := Launcher2
 LOCAL_CERTIFICATE := shared

AndroidManifest.xml

@@ -135,6 +135,15 @@
             </intent-filter>
         </receiver>
 
+        <!-- New user initialization; set up initial wallpaper -->
+        <receiver
+            android:name="com.android.launcher2.UserInitializeReceiver"
+            android:exported="false">
+            <intent-filter>
+                <action android:name="android.intent.action.USER_INITIALIZE" />
+            </intent-filter>
+        </receiver>
+        
         <!-- The settings provider contains Home's data, like the workspace favorites -->
         <provider
             android:name="com.android.launcher2.LauncherProvider"

src/com/android/launcher2/UserInitializeReceiver.java

@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2012 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.launcher2;
+
+import java.io.IOException;
+import java.util.ArrayList;
+
+import com.android.launcher.R;
+
+import android.app.WallpaperManager;
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.res.Resources;
+
+/**
+ * Takes care of setting initial wallpaper for a user, by selecting the
+ * first wallpaper that is not in use by another user.
+ */
+public class UserInitializeReceiver extends BroadcastReceiver {
+    @Override
+    public void onReceive(Context context, Intent intent) {
+        final Resources resources = context.getResources();
+        // Context.getPackageName() may return the "original" package name,
+        // com.android.launcher2; Resources needs the real package name,
+        // com.android.launcher. So we ask Resources for what it thinks the
+        // package name should be.
+        final String packageName = resources.getResourcePackageName(R.array.wallpapers);
+        ArrayList<Integer> list = new ArrayList<Integer>();
+        addWallpapers(resources, packageName, R.array.wallpapers, list);
+        addWallpapers(resources, packageName, R.array.extra_wallpapers, list);
+        WallpaperManager wpm = (WallpaperManager) context.getSystemService(
+                Context.WALLPAPER_SERVICE);
+        for (int i=1; i<list.size(); i++) {
+            int resid = list.get(i);
+            if (!wpm.hasResourceWallpaper(resid)) {
+                try {
+                    wpm.setResource(resid);
+                } catch (IOException e) {
+                }
+                return;
+            }
+        }
+    }
+
+    private void addWallpapers(Resources resources, String packageName, int resid,
+            ArrayList<Integer> outList) {
+        final String[] extras = resources.getStringArray(resid);
+        for (String extra : extras) {
+            int res = resources.getIdentifier(extra, "drawable", packageName);
+            if (res != 0) {
+                outList.add(res);
+            }
+        }
+    }
+}