PhoneStateListener不叫

问题描述

下面是我的整个code .......

BroadcastExample.java

 包com.example.broadcast;＆GT;进口android.app.Activity;进口
＆GT; android.content.Context;进口
＆GT; android.os.Bundle;进口
＆GT; android.telephony *。进口
＆GT; android.util.Log;进口
＆GT; android.widget.TextView;公共类BroadcastExaple延伸活动{
 TextView中的TextOut;
 TelephonyManager telephonyManager;
 PhoneStateListener监听; / **当第一次创建活动调用。 * /
 @覆盖
 公共无效的onCreate（捆绑savedInstanceState）{  尝试{   super.onCreate（savedInstanceState）;   //获取UI
   的TextOut =新的TextView（本）;
   textOut.setText（DEmoBroadCast）;
   的setContentView（的TextOut）;   //获取电话经理
   telephonyManager =（TelephonyManager）getSystemService（Context.TELEPHONY_SERVICE）;   //注册监听机智的电话经理
   telephonyManager.listen（监听器，PhoneStateListener.LISTEN_CALL_STATE）;   //创建一个新PhoneStateListener
   听众=新PhoneStateListener（）{    @覆盖
    公共无效onCallStateChanged（INT状态，弦乐incomingNumber）{
     Log.d（调试，手机监听器......）;
     字符串stateString =N / A;
     开关（州）{
     案例TelephonyManager.CALL_STATE_IDLE：
      stateString =空闲;
      打破;
     案例TelephonyManager.CALL_STATE_OFFHOOK：
      stateString =摘机;
      打破;
     案例TelephonyManager.CALL_STATE_RINGING：
      stateString =振铃;
      打破;
     }
     textOut.append（的String.format（\\ nonCallStateChanged：％S，
       stateString））;
    }
   };  }赶上（例外五）{  } }
}
 

的Andr​​oidManifest.xml

   - ＆LT;？XML版本=1.0编码=UTF-8＆GT;
 - ＆LT;清单的xmlns：机器人=htt​​p://schemas.android.com/apk/res/android
 包=com.example.broadcast安卓版code =1
 机器人：=的versionName1.0＆GT;
  - ＆lt;应用机器人：图标=@绘制/图标机器人：标签=@字符串/ APP_NAME＆GT;
   - ＆LT;活动机器人：BroadcastExapleNAME =机器人：标签=@字符串/ APP_NAME＆GT;
    - ＆所述;意图滤光器＆gt;
     - ＆lt;作用机器人：名字=android.intent.action.MAIN/＆GT;
     - ＆LT;类机器人：名字=android.intent.category.LAUNCHER/＆GT;
    - ＆所述; /意图滤光器＆gt;
   - ＆LT; /活性GT;
  - ＆LT; /用途＆gt;
  - ＆LT;采用-prmission机器人：名字=android.permission.READ_PHONE_STATE/＆GT;
  - ＆LT;采用-SDK安卓的minSdkVersion =7/＆GT;
 - ＆LT; /清单＆GT;
 

解决方案

在使用它后创建的监听器。

Here is My Whole Code.......

BroadcastExample.java

 package com.example.broadcast;

> import android.app.Activity; import
> android.content.Context; import
> android.os.Bundle; import
> android.telephony.*; import
> android.util.Log; import
> android.widget.TextView;

public class BroadcastExaple extends Activity {
 TextView textOut;
 TelephonyManager telephonyManager;
 PhoneStateListener listener;

 /** Called when the activity is first created. */
 @Override
 public void onCreate(Bundle savedInstanceState) {

  try {

   super.onCreate(savedInstanceState);

   // Get the UI
   textOut = new TextView(this);
   textOut.setText("DEmoBroadCast");
   setContentView(textOut);

   // Get the telephony manager
   telephonyManager = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);

   // Register the listener wit the telephony manager
   telephonyManager.listen(listener,PhoneStateListener.LISTEN_CALL_STATE);

   // Create a new PhoneStateListener
   listener = new PhoneStateListener() {

    @Override
    public void onCallStateChanged(int state, String incomingNumber) {
     Log.d("DEBUG", "Phone listener....");
     String stateString = "N/A";
     switch (state) {
     case TelephonyManager.CALL_STATE_IDLE:
      stateString = "Idle";
      break;
     case TelephonyManager.CALL_STATE_OFFHOOK:
      stateString = "Off Hook";
      break;
     case TelephonyManager.CALL_STATE_RINGING:
      stateString = "Ringing";
      break;
     }
     textOut.append(String.format("\nonCallStateChanged: %s",
       stateString));
    }
   };

  } catch (Exception e) {

  }

 }
}

AndroidManifest.xml

-<?xml version="1.0" encoding="utf-8"?>
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
 package="com.example.broadcast" android:versionCode="1"
 android:versionName="1.0">
 -<application android:icon="@drawable/icon" android:label="@string/app_name">
  -<activity android:name=".BroadcastExaple" android:label="@string/app_name">
   -<intent-filter>
    -<action android:name="android.intent.action.MAIN" />
    -<category android:name="android.intent.category.LAUNCHER" />
   -</intent-filter>
  -</activity>
 --</application>
 -<uses-prmission android:name="android.permission.READ_PHONE_STATE" />
 -<uses-sdk android:minSdkVersion="7" />
-</manifest>

解决方案

Listener is created after using it.

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