检测到新的SIM卡后，活动将重新启动

Question

我一直在开发一个用于接收SIM_STATUS_CHANGED广播的应用程序。我注意到，每当我在应用程序运行时将SIM卡移除并重新插入设备中时，切换Airplane Mode后再次检测到SIM卡，就会重新创建活动。

任何原因！！！这是默认行为吗？。我一直在Google上搜索，但未找到任何有关该问题的文章...

Manifest.xml

     <receiver android:name="com.yego.util.SimChangedReceiver">
        <intent-filter>
            <action android:name="android.intent.action.SIM_STATE_CHANGED"/>
        </intent-filter>
    </receiver>

SimChangedReceiver类

public class SimChangedReceiver extends BroadcastReceiver implements WaitUtil.WaitListner {
TelephonyManager telephonyManager;
SharedPrefUtil objSharedPref;
DBHelper dbHelper;
static Integer waitCount;
@Override
public void onReceive(Context context, Intent intent) {
    telephonyManager = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
    int simState = telephonyManager.getSimState();
    switch (simState) {
        case TelephonyManager.SIM_STATE_ABSENT:
            Log.e("MyApp", "Sim State absent");
            break;
        case TelephonyManager.SIM_STATE_NETWORK_LOCKED:
            Log.e("MyApp", "Sim State network locked");
            break;
        case TelephonyManager.SIM_STATE_PIN_REQUIRED:
            Log.e("MyApp", "Sim State pin required");
            break;
        case TelephonyManager.SIM_STATE_PUK_REQUIRED:
            Log.e("MyApp", "Sim State puk required");
            break;
        case TelephonyManager.SIM_STATE_UNKNOWN:
            Log.e("MyApp", "Sim State unknown");
            break;
        case TelephonyManager.SIM_STATE_READY:
            try {
                Log.e("MyApp", "Sim State Ready");
                objSharedPref = new SharedPrefUtil(context);
                if (objSharedPref.GetAppStringPrefByKey(R.string.device_sim_id_key).equals("")) { // No SIM Id is stored in preference
                    objSharedPref.SetAppPrefsByKey(R.string.device_sim_id_key, telephonyManager.getSimSerialNumber());
                } else {
                    if (!objSharedPref.GetAppStringPrefByKey(R.string.device_sim_id_key).equals(telephonyManager.getSimSerialNumber())) { // saved sim id does not match curent sim id
                        objSharedPref.SetAppPrefsByKey(R.string.device_sim_id_key, telephonyManager.getSimSerialNumber());
                        dbHelper = DBHelper.getInstance(context);
                        Log.e("MyApp", "Executing Wait Task First Time");
                        WaitUtil waitUtil = new WaitUtil(this);
                        waitUtil.execute(1000);
                        waitCount = 1;
                    }
                }
            } catch (SecurityException e) {
                Crashlytics.logException(e);
            } catch (Exception e) {
                Crashlytics.logException(e);
            }
            break;
    }
}

public void onWaitaskCompleted(boolean status) {
    try {
        if ((telephonyManager.getSubscriberId() != null && !telephonyManager.getSimCountryIso().equals("") &&
                !telephonyManager.getNetworkCountryIso().equals("")) || waitCount >= 20) {
            GetSimInfo(telephonyManager);
        } else {
            Log.e("MyApp", "Executing Wait Task"  + String.valueOf(waitCount));
            WaitUtil waitUtil = new WaitUtil(this);
            waitUtil.execute(3000);
            waitCount++;
        }
    }catch (SecurityException e){
        Crashlytics.logException(e);
    }