一.简介
系统广播,不需要自己发广播了,自己只需要写收广播就行了,系统负责来发
二.具体代码实现
MyPhoneState.java
package com.zking.android21_phone;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.telephony.TelephonyManager;
import android.util.Log;
/**
* Created by Administrator on 2017/7/11 0011.
*/
public class MyPhoneState extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
if("android.intent.action.PHONE_STATE".equals(intent.getAction())){
//获取电话管理者
TelephonyManager tm= (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
int state=tm.getCallState();
//判断
String number=intent.getStringExtra("incoming_number");//获取电话号码
switch (state) {
case TelephonyManager.CALL_STATE_RINGING:
Log.i("test","有电话进来了"+number);
break;
case TelephonyManager.CALL_STATE_OFFHOOK:
Log.i("test","通话中"+number);
break;
case TelephonyManager.CALL_STATE_IDLE:
Log.i("test","通话结束了"+number);
break;
}
}
}
}
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.zking.android21_phone">
<!--读取电话状态的权限-->
<uses-permission android:name="android.permission.READ_PHONE_STATE"></uses-permission>
<application android:allowBackup="true" android:icon="@mipmap/ic_launcher"
android:label="@string/app_name" android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true" android:theme="@style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<!--配置-->
<receiver android:name=".MyPhoneState">
<intent-filter>
<action android:name="android.intent.action.PHONE_STATE"></action>
</intent-filter>
</receiver>
</application>
</manifest>
查看控制台运行效果:
代码测试:用数据线连接手机,用别人手机打自己电话,去Android Studio的控制台查看打印。