Appwidget Click Problem

public class  StundenplanWidget extends AppWidgetProvider {
      
     private String  actualDay;
     private final String[]  weekdays = new String[]{DaysOfWeek.SUNDAY, DaysOfWeek.MONDAY,  DaysOfWeek.THUESDAY, DaysOfWeek.WEDNESDAY, DaysOfWeek.THURSDAY,  DaysOfWeek.FRIDAY, DaysOfWeek.SATURDAY};
     private RemoteViews view;
     private Database db;
      
     @Override
     public void  onUpdate(Context  context, AppWidgetManager appWidgetManager,
               int[] appWidgetIds) {
          
          db = new Database(context);
          
          this.actualDay  = weekdays[new Date().getDay()];
          
          for(int widgetId : appWidgetIds)
          {
               this.view  = new RemoteViews(context.getPackageName(), R.layout.widget_timetable);
                
               Intent touchIntent = new Intent(context, TouchActivity.class);
               PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, touchIntent, 0);
               view.setOnClickPendingIntent(R.id.daybefore,  pendingIntent);
               view.setOnClickPendingIntent(R.id.daynext,  pendingIntent);
 
               appWidgetManager.updateAppWidget(widgetId, view);
          }
          
          db.close();
     }
}

public class  TouchActivity extends Activity {
      
     @Override
     protected void  onCreate(Bundle savedInstanceState) {
          findViewById(R.id.daynext).setOnClickListener(new View.OnClickListener() {
                
               @Override
               public void  onClick(View v) {
                    TextView txtView = (TextView) v.findViewById(R.id.day);
                    txtView.setText("Stundenplan");
               }
          });
 
          super.onCreate(savedInstanceState);
     }
}

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
       package="at.tripwire.timetable"
      android:versionCode="1"
      android:versionName="1.0">
    <application android:icon="@drawable/icon"  android:label="@string/app_name">
        <activity android:name=".Stundenplan"
                  android:label="@string/app_name">
            <intent-filter>
                <action android:name="android.intent.action.MAIN"  />
                <category android:name="android.intent.category.LAUNCHER"  />
            </intent-filter>
        </activity>
          <receiver android:name=".widget.StundenplanWidget"  android:label="@string/app_name">
               <intent-filter>
                    <action  android:name="android.appwidget.action.APPWIDGET_UPDATE"  />
               </intent-filter>
               <meta-data android:name="android.appwidget.provider"  android:resource="@xml/widget"  />
          </receiver>
    </application>
  
    <uses-sdk android:minSdkVersion="3" />
 
</manifest>