Widget causes "Application not installed" error
I am trying to create my first Widget for the home screen. I have read the tutorial on the developer site, combed the web for tutorials, tipps and problem solutions but still can't seem to get it to work.
Problem:
I can run the App without any problems. I can also select the Widget for my App from the menu (long click on home screen --> Android-Widgets --> List of available Widgets). When I select my widget though, I get the following error message (as a toast): "Application is not installed on your phone."
Here my source code :
Entry in the manifest:
<receiver android:name=".SubscriberStateWidgetProvider" >
<intent-filter>
<action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
</intent-filter>
<meta-data
android:name="android.appwidget.provider"
android:resource="@xml/subscriber_status_widget" />
</receiver>
AppWidgetInfoProvider xml:
<?xml version="1.0" encoding="utf-8"?>
<appwidget-provider xmlns:android="http://schemas.android.com/apk/res/android"
android:minWidth="40dp"
android:minHeight="40dp"
android:updatePeriodMillis="300000"
android:configure="de.xxx.SubscriberStateWidgetProvider">
</appwidget-provider>
Layout-File:
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="@dimen/widget_margin">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="@+id/subscriberStateWidgetImage"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/acc_app_logo"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="true"
android:layout_margin="5dp" />
<TextView
android:id="@+id/subscriberStateWidgetTextViewLable"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/subscriberStatusText"
android:layout_toRightOf="@+id/subscriberStateWidgetImage"
android:layout_alignTop="@+id/subscriberStateWidgetImage"
android:layout_marginLeft="5dp"/>
<TextView
android:id="@+id/subscriberStateWidgetTextViewInfo"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_toRightOf="@+id/subscriberStateWidgetImage"
android:layout_below="@+id/subscriberStateWidgetTextViewLable"
android:layout_alignBottom="@+id/subscriberStateWidgetImage"
android:layout_marginLeft="5dp"
android:text="@string/subscriberStatusUnknown"/>
</RelativeLayout>
</FrameLayout>
AppWidgetProvider-Klass:
public class SubscriberStateWidgetProvider extends AppWidgetProvider{
public String SUBSCRIBER_WIDGET_UPDATE = "subscriberWidgetUpdate";
@Override
public void onUpdate(Context context, AppWidgetManager appWidgetManager,
int[] appWidgetIds) {
// TODO Auto-generated method stub
super.onUpdate(context, appWidgetManager, appWidgetIds);
final int N = appWidgetIds.length;
// Perform this loop procedure for each App Widget that belongs to this provider
for (int i=0; i<N; i++) {
int appWidgetId = appWidgetIds[i];
}
}
}
Possible causes that I have excluded:
I have also tried creating the widget when the app is running (started app, pushed button to go to home screen) and when app is not running (started app, used back button to stop the app) and get the same behaviour both times.
There are no error or warning entries in the LogCat or my Log file.
I would really appriciate any ideas, solutions or help you might have. Thanks in advance!
Finally got it to work :-) Still not sure, where the problem was though...
Here is my working source code:
Entry in manifest:
<receiver android:name="SubscriberStateWidgetProvider" >
<intent-filter >
<action
android:name="android.appwidget.action.APPWIDGET_UPDATE" />
</intent-filter>
<meta-data
android:name="android.appwidget.provider"
android:resource="@xml/subscriber_status_widget" />
</receiver>
AppWidgetInfoProvider xml:
<?xml version="1.0" encoding="utf-8"?>
<appwidget-provider
xmlns:android="http://schemas.android.com/apk/res/android"
android:initialLayout="@layout/subscriber_state_widget_layout"
android:minHeight="72dp"
android:minWidth="300dp"
android:updatePeriodMillis="300000" >
</appwidget-provider>
Layout-File:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="8dip"
android:background="@drawable/myshape" >
<TextView
android:id="@+id/subscriberStateLable"
style="@android:style/TextAppearance.Medium"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="@+id/widgetImage"
android:layout_toRightOf="@+id/widgetImage"
android:gravity="center_horizontal|center_vertical"
android:layout_margin="4dip"
android:text="@string/subscriberStatusText" >
</TextView>
<TextView
android:id="@+id/update"
style="@android:style/TextAppearance.Medium"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="@+id/widgetImage"
android:layout_toRightOf="@+id/widgetImage"
android:gravity="center_horizontal|center_vertical"
android:layout_margin="4dip"
android:text="@string/subscriberStatusUnknown" >
</TextView>
</RelativeLayout>
AppWidgetProvider-Class:
public void onUpdate(Context context, AppWidgetManager appWidgetManager,
int[] appWidgetIds) {
// Get all ids
ComponentName thisWidget = new ComponentName(context,
SubscriberStateWidgetProvider.class);
String currentSubscriberState = SubscriberStatusActivity.getCurrentSubscriberStateAsString(context);
int[] allWidgetIds = appWidgetManager.getAppWidgetIds(thisWidget);
for (int widgetId : allWidgetIds) {
RemoteViews remoteViews = new RemoteViews(context.getPackageName(),
R.layout.subscriber_state_widget_layout);
Log.w("WidgetExample", currentSubscriberState);
// Set the text
remoteViews.setTextViewText(R.id.update, currentSubscriberState);
// Register an onClickListener
Intent intent = new Intent(context, SubscriberStateWidgetProvider.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);
}
}
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