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

Change-Id: I9da8433ee8a9710f5a5362a6f82fc96d4f456c88

3 files changed, 252 insertions, 0 deletions

diff --git a/samples/StackWidget/src/com/example/android/stackwidget/StackWidgetProvider.java b/samples/StackWidget/src/com/example/android/stackwidget/StackWidgetProvider.java
new file mode 100644
index 000000000..e053c2103
--- /dev/null
+++ b/samples/StackWidget/src/com/example/android/stackwidget/StackWidgetProvider.java
@@ -0,0 +1,94 @@
+/*
+ * 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 android.app.PendingIntent;
+import android.appwidget.AppWidgetManager;
+import android.appwidget.AppWidgetProvider;
+import android.content.Context;
+import android.content.Intent;
+import android.net.Uri;
+import android.widget.RemoteViews;
+import android.widget.Toast;
+
+public class StackWidgetProvider extends AppWidgetProvider {
+    public static final String TOAST_ACTION = "com.example.android.stackwidget.TOAST_ACTION";
+    public static final String EXTRA_ITEM = "com.example.android.stackwidget.EXTRA_ITEM";
+
+    @Override
+    public void onDeleted(Context context, int[] appWidgetIds) {
+        super.onDeleted(context, appWidgetIds);
+    }
+
+    @Override
+    public void onDisabled(Context context) {
+        super.onDisabled(context);
+    }
+
+    @Override
+    public void onEnabled(Context context) {
+        super.onEnabled(context);
+    }
+
+    @Override
+    public void onReceive(Context context, Intent intent) {
+        AppWidgetManager mgr = AppWidgetManager.getInstance(context);
+        if (intent.getAction().equals(TOAST_ACTION)) {
+            int appWidgetId = intent.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID,
+                    AppWidgetManager.INVALID_APPWIDGET_ID);
+            int viewIndex = intent.getIntExtra(EXTRA_ITEM, 0);
+            Toast.makeText(context, "Touched view " + viewIndex, Toast.LENGTH_SHORT).show();
+        }
+        super.onReceive(context, intent);
+    }
+
+    @Override
+    public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
+        // update each of the widgets with the remote adapter
+        for (int i = 0; i < appWidgetIds.length; ++i) {
+
+            // Here we setup the intent which points to the StackViewService which will
+            // provide the views for this collection.
+            Intent intent = new Intent(context, StackWidgetService.class);
+            intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetIds[i]);
+            // When intents are compared, the extras are ignored, so we need to embed the extras
+            // into the data so that the extras will not be ignored.
+            intent.setData(Uri.parse(intent.toUri(Intent.URI_INTENT_SCHEME)));
+            RemoteViews rv = new RemoteViews(context.getPackageName(), R.layout.widget_layout);
+            rv.setRemoteAdapter(appWidgetIds[i], R.id.stack_view, intent);
+
+            // The empty view is displayed when the collection has no items. It should be a sibling
+            // of the collection view.
+            rv.setEmptyView(R.id.stack_view, R.id.empty_view);
+
+            // Here we setup the a pending intent template. Individuals items of a collection
+            // cannot setup their own pending intents, instead, the collection as a whole can
+            // setup a pending intent template, and the individual items can set a fillInIntent
+            // to create unique before on an item to item basis.
+            Intent toastIntent = new Intent(context, StackWidgetProvider.class);
+            toastIntent.setAction(StackWidgetProvider.TOAST_ACTION);
+            toastIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetIds[i]);
+            intent.setData(Uri.parse(intent.toUri(Intent.URI_INTENT_SCHEME)));
+            PendingIntent toastPendingIntent = PendingIntent.getBroadcast(context, 0, toastIntent,
+                    PendingIntent.FLAG_UPDATE_CURRENT);
+            rv.setPendingIntentTemplate(R.id.stack_view, toastPendingIntent);
+
+            appWidgetManager.updateAppWidget(appWidgetIds[i], rv);
+        }
+        super.onUpdate(context, appWidgetManager, appWidgetIds);
+    }
+}
\ No newline at end of file
diff --git a/samples/StackWidget/src/com/example/android/stackwidget/StackWidgetService.java b/samples/StackWidget/src/com/example/android/stackwidget/StackWidgetService.java
new file mode 100644
index 000000000..d53b0ea5d
--- /dev/null
+++ b/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.
+    }
+}
\ No newline at end of file
diff --git a/samples/StackWidget/src/com/example/android/stackwidget/WidgetItem.java b/samples/StackWidget/src/com/example/android/stackwidget/WidgetItem.java
new file mode 100644
index 000000000..aa822ca33
--- /dev/null
+++ b/samples/StackWidget/src/com/example/android/stackwidget/WidgetItem.java
@@ -0,0 +1,25 @@
+/*
+ * 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;
+
+public class WidgetItem {
+    public String text;
+
+    public WidgetItem(String text) {
+        this.text = text;
+    }
+}