No, I am not calling from onReceive() method of app-widget.
I will tell you step-by-step what I am doing:
1) There is my configuration Activity of my AppWidget class which perform
the FB authentication and then retrieves the wall post using
FBQueryAsyncTask. It do this successfully.
2) In my updateAppWidget() method, I update the remote views and assign the
following pending intents to "next" button of my app-widget.
Intent intent=new Intent(context,GetPostService.class);
//GetPostService is service class
Bundle b=new Bundle();
b.putInt(MyWidgetProvider.APP_WIDGET_ID, id);
b.putInt(MyWidgetProvider.REQUEST_CODE,
MyWidgetProvider.NEXT_FB_POST);
intent.putExtras(b);
PendingIntent nextPostService=PendingIntent.getService(context, 0,
intent, PendingIntent.FLAG_UPDATE_CURRENT);
views.setOnClickPendingIntent(R.id.next_button, nextPostService);
3) In GetPostService, I am using the same FBQueryAsync class which I have
used in configuration activity (to authenticate and retrieve the post) and
with same parameter. But it throwing exception in my service class and it
running perfectly in my configuration activity.
I may be missing something. Following is my ManifestXML where I have
mentioned service, widget provider and cofiguration activity:
<activity android:name=".FBCredentialsActivity"
android:theme="@style/Theme.Transparent">
<intent-filter>
<action
android:name="android.appwidget.action.APPWIDGET_CONFIGURE" />
</intent-filter>
</activity>
<receiver android:name="MyWidgetProvider">
<intent-filter>
<action
android:name="android.appwidget.action.APPWIDGET_UPDATE" />
</intent-filter>
<meta-data android:name="android.appwidget.provider"
android:resource="@xml/widget_provider"/>
</receiver>
<service android:name=".GetPostService"></service>
Thanks for giving time.
Regards,
Mahavir
On Sat, Mar 19, 2011 at 4:43 PM, Kostya Vasilyev <[email protected]> wrote:
> 19.03.2011 13:57, Mahavir Jain пишет:
>
>
>> Is it valid to call AsyncTask from PendingIntent service or activity?
>>
>
> AsyncTask has nothing to do with pending intents or activities. It's just a
> utility class.
>
> Check your logcat more carefully:
>
>
> ERROR/AndroidRuntime(473): Caused by: java.lang.NullPointerException
>> ERROR/AndroidRuntime(473): at
>> java.net.URLEncoder.encode(URLEncoder.java:53)
>> ERROR/AndroidRuntime(473): at
>> com.facebook.android.Util.encodeUrl(Util.java:86)
>> ERROR/AndroidRuntime(473): at
>> com.facebook.android.Util.openUrl(Util.java:146)
>> ERROR/AndroidRuntime(473): at
>> com.mobisys.android.app_widget.FBQueryAsyncTask.doInBackground(FBQueryAsyncTask.java:50)
>>
>
> Assuming that com.mobisys is your application, look in FBQueryAsync.java,
> line 50.
>
> Are you somehow calling Facebook classes with a NULL pointer?
>
> Are you using AsyncTask from a widget's onReceive?
>
> --
> Kostya Vasilyev -- http://kmansoft.wordpress.com
>
>
>
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