android小部件停止几小时后更新代码？

我正在研究一个电池小部件，所以当Intent.ACTION_BATTERY_CHANGED出现时，它会被widget onRecive方法从我可以获取其数据的地方获得，现在问题是这样，整个过程变得很好但是当时间过去意味着你可以说小部件获得直播可以说4到5个小时并且Widget停止更新，此刻我正在使用textveiw来显示电池数据但是几个小时后小部件停止更新文本中的数据这里是代码

这是widget @Override public void onUpdate的更新方法（Context context，AppWidgetManager appWidgetManager，int [] appWidgetIds）{

context.getApplicationContext().registerReceiver(this,
            new IntentFilter(Intent.ACTION_BATTERY_CHANGED));

    ComponentName cn =
        new ComponentName(context, BatteryInfoActivity.class);
    appWidgetManager.updateAppWidget(cn, this.views);
}

这是on onRecive方法

@Override
public void onReceive(Context context, Intent intent) {
    String action = intent.getAction();

    if (action.equals(Intent.ACTION_BATTERY_CHANGED)) {
        //Integer level = intent.getIntExtra("level", -1);

        String mgs = "--";
        //String BatterInfo = "Level"+ intent.getIntExtra("level", -1)+ "/" + intent.getIntExtra("scale", -1);
        Integer level = intent.getIntExtra("level", -1);
        Integer scale = intent.getIntExtra("scale", -1);
        Integer temp = intent.getIntExtra("temperature",-1);
        Integer voltage = intent.getIntExtra("voltage", -1);
        Integer health = intent.getIntExtra("health", -1);
          boolean present = intent.getBooleanExtra("present", false);
          Integer plugged = intent.getIntExtra("plugged", -1);
          String technology = intent.getStringExtra("technology");
          Integer status = intent.getIntExtra("status",-1);      
          mgs = mgs + " Technology " + technology + "--";
          mgs = mgs + "Battery is Present " + present+"--";
          mgs = mgs + " level "+ level + "/" +  scale + "--";
          mgs = mgs + "tempuratue" + temp + "--";
          mgs = mgs + "voltage"+ voltage + "--"; 

        this.views.setTextViewText(R.id.textView1, mgs);
        ComponentName cn =
            new ComponentName(context, BatteryInfoActivity.class);
        AppWidgetManager.getInstance(context).updateAppWidget(cn, this.views);
    }
    super.onReceive(context, intent);
}