Android中监听未接来电的2种方法

2020-04-11 11:36:02

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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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