Question

我在这里阅读了很多关于我的服务意图问题的问题，但我没有找到任何解决方案。

所以我决定再问你..

小工具类：

public class datacounter_widget extends AppWidgetProvider {

private static PendingIntent service = null;

@Override
 public void onReceive(Context context, Intent intent) {
  // TODO Auto-generated method stub
  super.onReceive(context, intent);


 }


@Override
public void onEnabled(Context context) {
// TODO Auto-generated method stub
//super.onEnabled(context);

    killMe = false;

Toast.makeText(context, "Widget erstellt!", Toast.LENGTH_LONG).show();
}

  @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;
     for (int i=0; i<N; i++) {
         int appWidgetId = appWidgetIds[i];

             updateAppWidget(context, appWidgetManager, appWidgetId);

     }
 }



 @Override
    public void onDisabled(Context context) {
    // TODO Auto-generated method stub
    //super.onEnabled(context);

        killMe = true;
        final AlarmManager m = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);  
        m.cancel(service); 
    Toast.makeText(context, "Widget entfernt!", Toast.LENGTH_LONG).show();
    }



 public static void updateAppWidget(Context context, AppWidgetManager appWidgetManager,
         int appWidgetId){
         SharedPreferences prefs = context.getSharedPreferences(PREFS_NAME, 0);
         RemoteViews updateViews = new RemoteViews(context.getPackageName(), R.layout.widget_datacounter_main);





         final AlarmManager m = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);

         final Calendar TIME = Calendar.getInstance();
         TIME.set(Calendar.MINUTE, 0);
         TIME.set(Calendar.SECOND, 0);
         TIME.set(Calendar.MILLISECOND, 0);

         final Intent i = new Intent(context, datacounter_widget_service.class);

         if (service == null)
         {
             service = PendingIntent.getService(context, 0, i, PendingIntent.FLAG_CANCEL_CURRENT);
         }

         int time = prefs.getInt("timeInt", 10);
         m.setRepeating(AlarmManager.RTC, TIME.getTime().getTime(), 1000 * time, service);

         Intent intent = new Intent(context, datacounter_widget_config.class);
         intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);


         PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
         updateViews.setOnClickPendingIntent(R.id.backgroundImageData, pendingIntent);

          appWidgetManager.updateAppWidget(appWidgetId, updateViews);



         }

}

服务类：

   public class datacounter_widget_service extends Service
      {



@Override
public void onCreate()
{
    super.onCreate();
}

@Override
public int onStartCommand(Intent intent, int flags, int startId)
{
    buildUpdate();

    return super.onStartCommand(intent, flags, startId);
}


private static String CalcDataUsageSent()
{

    long txBytes = TrafficStats.getTotalTxBytes() / (1024*1024);


    int sent = (int) (txBytes);

    String sent_txt = String.valueOf(sent);

 return  sent_txt;

}
private static String CalcDataUsageReceived()
{

    long rxBytes = TrafficStats.getTotalRxBytes() / (1024*1024);


    int received = (int) (rxBytes);

    String sent_txt = String.valueOf(received);

 return  sent_txt;

}

private static String CalcDataUsageSum()
{

    int sum = (Integer.parseInt(CalcDataUsageReceived())) + (Integer.parseInt(CalcDataUsageSent()));

    String sent_txt = String.valueOf(sum);

 return  sent_txt;

}




private void buildUpdate()
{

     RemoteViews updateViews = new RemoteViews(getPackageName(), R.layout.widget_datacounter_main);

     updateViews.setTextViewText(R.id.dataCounterTextSent, CalcDataUsageSent()+" MB");
     updateViews.setTextViewText(R.id.dataCounterTextReceived, CalcDataUsageReceived()+" MB");
     updateViews.setTextViewText(R.id.dataCounterTextSum, CalcDataUsageSum()+" MB");



    // Push update for this widget to the home screen
    ComponentName thisWidget = new ComponentName(this, datacounter_widget.class);
    AppWidgetManager manager = AppWidgetManager.getInstance(this);
    manager.updateAppWidget(thisWidget, updateViews);
}

@Override
public IBinder onBind(Intent intent)
{
    return null;
}
}

配置：

     public class datacounter_widget_config extends Activity {
String[] items_seconds, items_modes;


   static final String PREFS_NAME = "de.marcusschreiter.sysinfo.datacounter_widget";
    public static String MY_WIDGET_UPDATE = "MY_OWN_WIDGET_UPDATE";

Button configOkButton;
int mAppWidgetId = AppWidgetManager.INVALID_APPWIDGET_ID;

@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);


setResult(RESULT_CANCELED);



        setContentView(R.layout.widget_datacounter_config);

        SharedPreferences prefs = this.getSharedPreferences(PREFS_NAME, 0);
        String time = prefs.getString("time", "nichts").trim();
        int mode_setted = prefs.getInt("mode", 0);


        Intent intent = getIntent();
     Bundle extras = intent.getExtras();
     if (extras != null) {
         mAppWidgetId = extras.getInt(
                 AppWidgetManager.EXTRA_APPWIDGET_ID,
                 AppWidgetManager.INVALID_APPWIDGET_ID);
     }


     if (mAppWidgetId == AppWidgetManager.INVALID_APPWIDGET_ID) {
         finish();
     }

}


private Button.OnClickListener configOkButtonOnClickListener
= new Button.OnClickListener(){

public void onClick(View arg0) {
 // TODO Auto-generated method stub

 final Context context = datacounter_widget_config.this;



    Intent resultValue = new Intent();
    resultValue.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, mAppWidgetId);
    setResult(RESULT_OK, resultValue);




 finish();
}
};

}

清单：

<receiver android:name=".datacounter_widget" android:label="@string/widget_datacounter_head">

    <intent-filter>
        <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
    </intent-filter>

    <meta-data android:name="android.appwidget.provider"    android:resource="@layout/widget_datacounter_provider" />
</receiver>
<service android:name=".datacounter_widget_service" />
<activity android:name=".datacounter_widget_config"
           android:label="DataCounter-Widget-Setup">


     <intent-filter>
         <action android:name="android.appwidget.action.APPWIDGET_CONFIGURE" />
     </intent-filter>
 </activity>

Logcat：

  Unable to start service Intent { flg=0x4 
  cmp=de.marcusschreiter.sysinfo/.datacounter_widget (has extras) } U=0: not found

经过几个小时的检查和测试，我似乎无法解决这个问题。小部件工作，显示数据使用情况。但是在配置（配置类）之后，小部件似乎没有刷新。它应该在保存点击后显示正确的线性布局（可能是下载和上传总和的一个或显示下载和上传的一个 - 显示其中一个并隐藏另一个）。但它会在几分钟后刷新......

为什么我的小部件在配置后不会刷新自己？我不知道服务（小部件的刷新时间）是否有效，但是logcat告诉错误..

那么，您能帮助我创建一个具有正确刷新时间的数据使用小部件并在配置后刷新吗？

谢谢！

祝你好运

马库斯

无法启动服务意图（小部件，有附加功能，U = 0）

0 个答案: