Making StackWidget sample code stand alone as opposed to bundled with HoneycombGallery

Change-Id: I9da8433ee8a9710f5a5362a6f82fc96d4f456c88

samples/StackWidget/src/com/example/android/stackwidget/StackWidgetService.java

@@ -0,0 +1,133 @@
+/*
+ * Copyright (C) 2011 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.stackwidget;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import android.appwidget.AppWidgetManager;
+import android.content.Context;
+import android.content.Intent;
+import android.os.Bundle;
+import android.widget.RemoteViews;
+import android.widget.RemoteViewsService;
+
+public class StackWidgetService extends RemoteViewsService {
+    @Override
+    public RemoteViewsFactory onGetViewFactory(Intent intent) {
+        return new StackRemoteViewsFactory(this.getApplicationContext(), intent);
+    }
+}
+
+class StackRemoteViewsFactory implements RemoteViewsService.RemoteViewsFactory {
+    private static final int mCount = 10;
+    private List<WidgetItem> mWidgetItems = new ArrayList<WidgetItem>();
+    private Context mContext;
+    private int mAppWidgetId;
+
+    public StackRemoteViewsFactory(Context context, Intent intent) {
+        mContext = context;
+        mAppWidgetId = intent.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID,
+                AppWidgetManager.INVALID_APPWIDGET_ID);
+    }
+
+    public void onCreate() {
+        // In onCreate() you setup any connections / cursors to your data source. Heavy lifting,
+        // for example downloading or creating content etc, should be deferred to onDataSetChanged()
+        // or getViewAt(). Taking more than 20 seconds in this call will result in an ANR.
+        for (int i = 0; i < mCount; i++) {
+            mWidgetItems.add(new WidgetItem(i + "!"));
+        }
+
+        // We sleep for 3 seconds here to show how the empty view appears in the interim.
+        // The empty view is set in the StackWidgetProvider and should be a sibling of the
+        // collection view.
+        try {
+            Thread.sleep(3000);
+        } catch (InterruptedException e) {
+            e.printStackTrace();
+        }
+    }
+
+    public void onDestroy() {
+        // In onDestroy() you should tear down anything that was setup for your data source,
+        // eg. cursors, connections, etc.
+        mWidgetItems.clear();
+    }
+
+    public int getCount() {
+        return mCount;
+    }
+
+    public RemoteViews getViewAt(int position) {
+        // position will always range from 0 to getCount() - 1.
+
+        // We construct a remote views item based on our widget item xml file, and set the
+        // text based on the position.
+        RemoteViews rv = new RemoteViews(mContext.getPackageName(), R.layout.widget_item);
+        rv.setTextViewText(R.id.widget_item, mWidgetItems.get(position).text);
+
+        // Next, we set a fill-intent which will be used to fill-in the pending intent template
+        // which is set on the collection view in StackWidgetProvider.
+        Bundle extras = new Bundle();
+        extras.putInt(StackWidgetProvider.EXTRA_ITEM, position);
+        Intent fillInIntent = new Intent();
+        fillInIntent.putExtras(extras);
+        rv.setOnClickFillInIntent(R.id.widget_item, fillInIntent);
+
+        // You can do heaving lifting in here, synchronously. For example, if you need to
+        // process an image, fetch something from the network, etc., it is ok to do it here,
+        // synchronously. A loading view will show up in lieu of the actual contents in the
+        // interim.
+        try {
+            System.out.println("Loading view " + position);
+            Thread.sleep(500);
+        } catch (InterruptedException e) {
+            e.printStackTrace();
+        }
+
+        // Return the remote views object.
+        return rv;
+    }
+
+    public RemoteViews getLoadingView() {
+        // You can create a custom loading view (for instance when getViewAt() is slow.) If you
+        // return null here, you will get the default loading view.
+        return null;
+    }
+
+    public int getViewTypeCount() {
+        return 1;
+    }
+
+    public long getItemId(int position) {
+        return position;
+    }
+
+    public boolean hasStableIds() {
+        return true;
+    }
+
+    public void onDataSetChanged() {
+        // This is triggered when you call AppWidgetManager notifyAppWidgetViewDataChanged
+        // on the collection view corresponding to this factory. You can do heaving lifting in
+        // here, synchronously. For example, if you need to process an image, fetch something
+        // from the network, etc., it is ok to do it here, synchronously. The widget will remain
+        // in its current state while work is being done here, so you don't need to worry about
+        // locking up the widget.
+    }
+}