多次调用电话状态侦听器

您好，我想将传入号码记录到数据库中。我正在使用广播接收器来监听电话并使用电话状态监听器。 这是我的代码

ThePhoneStateListener.java

package com.example.netlogger.Receiver;
import android.content.Context;
import android.telephony.PhoneStateListener;
import android.telephony.TelephonyManager;
import android.util.Log;

public class ThePhoneStateListener extends PhoneStateListener {
    Context context;
    public ThePhoneStateListener(Context context) {
        this.context = context;
    }
    @Override
    public void onCallStateChanged(int state, String incomingNumber) {
        super.onCallStateChanged(state, incomingNumber);
        if (state == TelephonyManager.CALL_STATE_OFFHOOK) {
            Log.d("TAGG", "Insert: " + incomingNumber);
        }

    }
}

CallActionReceiver.java

package com.example.netlogger.Receiver;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.telephony.TelephonyManager;
import android.util.Log;
import android.widget.Toast;

public class CallActionsReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(Context arg0, Intent arg1) {
        TelephonyManager manager = (TelephonyManager) arg0
                .getSystemService(arg0.TELEPHONY_SERVICE);
        manager.listen(new ThePhoneStateListener(arg0),
                android.telephony.PhoneStateListener.LISTEN_CALL_STATE);
    }
}

清单.xml

<receiver android:name="com.example.netlogger.Receiver.CallActionsReceiver">
    <intent-filter android:priority="2147483647">
        <action android:name="android.intent.action.PHONE_STATE"/>
    </intent-filter>
    <intent-filter android:priority="2147483647">
        <action android:name="android.intent.action.NEW_OUTGOING_CALL"/>
    </intent-filter>
</receiver>

in ThePhoneStateListeneronCallStateChanged() 为什么会被多次调用。我只想将传入号码插入数据库一次。

不知怎么的，我解决了。问题是，每当我的广播接收器的 onReceive() 被调用时，每次我试图监听一个新的 PhoneStateListener 时。您只需要执行一次。就像下面一样

package com.example.netlogger.Receiver;

import java.util.Date;

import com.example.netlogger.util.LocalDatabase;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.preference.PreferenceManager;
import android.telephony.TelephonyManager;
import android.util.Log;
import android.widget.Toast;

public class CallActionsReceiver extends BroadcastReceiver {
    static ThePhoneStateListener phoneStateListener;



    @Override
    public void onReceive(Context arg0, Intent arg1) {
        TelephonyManager manager = (TelephonyManager) arg0
                .getSystemService(arg0.TELEPHONY_SERVICE);      
        if (phoneStateListener == null) {
            phoneStateListener = new ThePhoneStateListener(arg0);
            manager.listen(phoneStateListener,
                    android.telephony.PhoneStateListener.LISTEN_CALL_STATE);
        }


    }

}

问题解决了。干杯