AppWidgetManager manager = AppWidgetManager.getInstance(Context);
Hope this solve your problem.
On Jan 11, 10:14 am, John Gaby <jg...@gabysoft.com> wrote:
> I am trying to create an App Widget for the Home screen which displays
> a line of text. When the user clicks on the Widget, I want the text to
> change. I have pieced together the following which seems to work,
> however I am concerned about how I am providing access to the
> AppWidgetManager in the onReceive call. I need the AppWidgetManager
> there because I wish to change the text. I tried adding a class
> member variable, 'm_appWidgetManager', which I set during the onUpdate
> call. However when I get the onReceive call, this value is null. Is
> this because the onReceive is called with a different instance of my
> class, and if so, why is that? If I chang m_appWidgetManager to be
> static, and it all seems to work, but this does not seem like the
> correct solution.
>
> Can anyone tell me how to do the properly?
>
> Thanks.
>
> package com.gabysoft.appwidgettest;
>
> import android.app.PendingIntent;
> import android.appwidget.AppWidgetManager;
> import android.appwidget.AppWidgetProvider;
> import android.content.ComponentName;
> import android.content.Context;
> import android.content.Intent;
> import android.util.Log;
> import android.widget.RemoteViews;
>
> public class HelloWidget extends AppWidgetProvider
> {
> public static String ACTION_WIDGET_RECEIVER =
> "ActionReceiverWidget";
>
> static AppWidgetManager m_appWidgetManager;
>
> @Override
> public void onUpdate(Context context, AppWidgetManager
> appWidgetManager, int[] appWidgetIds)
> {
> m_appWidgetManager = appWidgetManager;
>
> Log.d("GabySoft", "HelloWidget:onUpdate: m_appWidgetManager =
> " + m_appWidgetManager);
>
> RemoteViews remoteViews = new
> RemoteViews(context.getPackageName(), R.layout.main);
>
> Intent active = new Intent(context, HelloWidget.class);
> active.setAction(ACTION_WIDGET_RECEIVER);
>
> PendingIntent pendingIntent =
> PendingIntent.getBroadcast(context, 0, active, 0);
>
> remoteViews.setOnClickPendingIntent(R.id.widget_textview,
> pendingIntent);
>
> appWidgetManager.updateAppWidget(appWidgetIds, remoteViews);
> }
>
> @Override
> public void onReceive(Context context, Intent intent)
> {
> Log.d("GabySoft", "HelloWidget:onReceive: manager = " +
> m_appWidgetManager);
>
> if (intent.getAction().equals(ACTION_WIDGET_RECEIVER))
> {
> RemoteViews remoteViews = new
> RemoteViews(context.getPackageName(), R.layout.main);
> ComponentName thisWidget = new ComponentName(context,
> HelloWidget.class);
>
> remoteViews.setTextViewText(R.id.widget_textview, "Some
> other text");
> m_appWidgetManager.updateAppWidget(thisWidget,
> remoteViews);
> }
>
> super.onReceive(context, intent);
> }}
>
>
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