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

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Change-Id: I9da8433ee8a9710f5a5362a6f82fc96d4f456c88
This commit is contained in:
Adam Cohen
2011-02-10 18:19:50 -08:00
parent f8da117394
commit 1ff28c7b12
22 changed files with 329 additions and 246 deletions
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94
samples/StackWidget/src/com/example/android/stackwidget/StackWidgetProvider.java Normal file
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/*
* 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);
}
}

133
samples/StackWidget/src/com/example/android/stackwidget/StackWidgetService.java Normal file
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/*
* 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.
}
}

25
samples/StackWidget/src/com/example/android/stackwidget/WidgetItem.java Normal file
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/*
* 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;
}
}