How to create android app with app widget in single application

Question

I have already done one android application which stores date with person name and phone number.

Now I have to develop one widget f

Answer 1

Create and configure widget

To register a widget you create a BroadcastReceiver with an intent filter for the android.appwidget.action.APPWIDGET_UPDATE action.

You also specify the meta-data for the widget via the android:name="android.appwidget.provider attribute. The configuration file referred by this meta-data contains the configuration settings for the widget. If contains for example the update interface, the size and the initial layout of the widget.

Create a new file myshape.xml in the /res/drawable directory. This file will define the background we use in your widget.

Define the following widget_layout.xml file under the res/layout folder.

now make the class.

public class MyWidgetProvider extends AppWidgetProvider {

  private static final String ACTION_CLICK = "ACTION_CLICK";  

     @Override
  public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {

    // Get all ids
    ComponentName thisWidget = new ComponentName(context,
        MyWidgetProvider.class);
    int[] allWidgetIds = appWidgetManager.getAppWidgetIds(thisWidget);
    for (int widgetId : allWidgetIds) {
      // Create some random data
      int number = (new Random().nextInt(100));

      RemoteViews remoteViews = new RemoteViews(context.getPackageName(),
          R.layout.widget_layout);
      Log.w("WidgetExample", String.valueOf(number));
      // Set the text
      remoteViews.setTextViewText(R.id.update, String.valueOf(number));

      // Register an onClickListener
      Intent intent = new Intent(context, MyWidgetProvider.class);

      intent.setAction(AppWidgetManager.ACTION_APPWIDGET_UPDATE);
      intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, appWidgetIds);

      PendingIntent pendingIntent = PendingIntent.getBroadcast(context,
          0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
      remoteViews.setOnClickPendingIntent(R.id.update, pendingIntent);
      appWidgetManager.updateAppWidget(widgetId, remoteViews);
    }
  }