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Android中监听未接来电的2种方法

2015-04-24 10:10 597 查看

这里主要是总结一下如何监听有未接来电的问题

1.1 使用广播接收器 BrocastReceiver
实现思路 :
静态注册监听android.intent.action.PHONE_STATE 的广播接收器当手机的状态改变后将会触发 onReceive.
手机的状态分为CALL_STATE_RINGING(响铃中),CALL_STATE_IDLE(空闲),CALL_STATE_OFFHOOK(忙音).
也就是说当你没有任何电话是，状态是 IDLE ，当接到电话时是 OFFHOOK ，电话结束后返回 IDLE 状态。
记录上一次的手机状态,如果的手机现在的空闲,上次的状态响铃中的话,就可以判断是未接来电.

<uses-permission android:name="android.permission.READ_PHONE_STATE"/>
<receiver android:name="com.example.phonestatedemo.receiver.PhoneStateReceiver">
<intent-filter >
<action android:name="android.intent.action.PHONE_STATE"/>
</intent-filter>
</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 PhoneStateReceiver extends BroadcastReceiver {
private static int lastCallState = TelephonyManager.CALL_STATE_IDLE;
@Override
public void onReceive(Context arg0, Intent arg1) {
String action = arg1.getAction();
Log.d("PhoneStateReceiver", action );
TelephonyManager telephonyManager = (TelephonyManager) arg0
.getSystemService(Context.TELEPHONY_SERVICE);
int currentCallState = telephonyManager.getCallState();
Log.d("PhoneStateReceiver", "currentCallState=" + currentCallState );
if (currentCallState == TelephonyManager.CALL_STATE_IDLE) {// 空闲
//TODO
} else if (currentCallState == TelephonyManager.CALL_STATE_RINGING) {// 响铃
//TODO
} else if (currentCallState == TelephonyManager.CALL_STATE_OFFHOOK) {// 接听
//TODO
}
if(lastCallState == TelephonyManager.CALL_STATE_RINGING &&
currentCallState == TelephonyManager.CALL_STATE_IDLE){
Toast.makeText(arg0, "有未接来电", 1).show();
}
lastCallState = currentCallState;
}
}

1.2 使用 PhoneStateListener
实现思路 :
继承PhoneStateListener后,当手机的状态改变后将会触发onCallStateChanged.手机的状态分为CALL_STATE_RINGING(响铃中),CALL_STATE_IDLE(空闲),CALL_STATE_OFFHOOK(忙音).
也就是说当你没有任何电话是，状态是 IDLE ，当接到电话时是 OFFHOOK ，电话结束后返回 IDLE 状态。
记录上一次的手机状态,如果的手机现在的空闲,上次的状态响铃中的话,就可以判断是未接来电.

不足:现在的处理不能判断出是用户是否主动不接电话.

TelephonyManager telephonyManager = (TelephonyManager) this
.getSystemService(Context.TELEPHONY_SERVICE);
telephonyManager.listen(new CallStateListener(this),
PhoneStateListener.LISTEN_CALL_STATE);
package com.example.phonestatedemo.listener;
import android.content.Context;
import android.telephony.PhoneStateListener;
import android.telephony.TelephonyManager;
import android.util.Log;
import android.widget.Toast;
public class CallStateListener extends PhoneStateListener {
private static int lastetState = TelephonyManager.CALL_STATE_IDLE; // 最后的状态
private Context context;
public CallStateListener(Context context) {
this.context = context;
}
@Override
public void onCallStateChanged(int state, String incomingNumber) {
// TODO Auto-generated method stub
super.onCallStateChanged(state, incomingNumber);
Log.d("CallStateListener", "onCallStateChanged state=" + state );
// 如果当前状态为空闲,上次状态为响铃中的话,则破觚为认为是未接来电
if (lastetState == TelephonyManager.CALL_STATE_RINGING
&& state == TelephonyManager.CALL_STATE_IDLE) {
//TODO
Toast.makeText(this.context, "CallStateListener 有未接来电", 1).show();
}
lastetState = state;
}
}

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