TelephonyManager

概述

顾名思义，电话管理器，TelephonyManager类提供了对设备上的电话服务信息的访问。

可以使用这个类中的方法来完成如下工作：

确定电话服务和状态
访问某些类型的用户信息
注册一个监听程序来接收通知的电话状态变化

注意：你不能直接实例化这个类，需要通过Context.getSystemService(Context.TELEPHONY_SERVICE)获取服务对象

常用API方法

提供一个Demo，可以参考System.out内的输出内容——即常用的API方法。

需要一定的权限

<uses-permission android:name="android.permission.READ_PHONE_STATE" />

package com.example.a4_8telephonymanager;

import android.Manifest;
import android.content.Context;
import android.content.pm.PackageManager;
import android.support.v4.app.ActivityCompat;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.telephony.TelephonyManager;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        testTelephonyManager();
    }

    //电话服务管理API的方法
    private void testTelephonyManager() {
        TelephonyManager tm = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
        System.out.println("电话状态：" + tm.getCallState());
        if (ActivityCompat.checkSelfPermission(this, Manifest.permission.READ_PHONE_STATE) != PackageManager.PERMISSION_GRANTED) {
            // TODO: Consider calling
            //    ActivityCompat#requestPermissions
            // here to request the missing permissions, and then overriding
            //   public void onRequestPermissionsResult(int requestCode, String[] permissions,
            //                                          int[] grantResults)
            // to handle the case where the user grants the permission. See the documentation
            // for ActivityCompat#requestPermissions for more details.
            return;
        }
        System.out.println("唯一的设备 = " + tm.getDeviceId());
        System.out.println("设备的软件版本号 = "+tm.getDeviceSoftwareVersion());
        System.out.println("手机号 = "+tm.getLine1Number());
        System.out.println("获取ISO标准的国家码,即国际长途区号 = "+tm.getNetworkCountryIso());
        System.out.println("当前使用的网络类型 = "+tm.getNetworkType());
        System.out.println("手机类型 = "+tm.getPhoneType());
        System.out.println("SIM的状态信息 = "+tm.getSimState());
        System.out.println("唯一的用户ID = "+tm.getSubscriberId());
        System.out.println("SIM卡的序列号 = "+tm.getSimSerialNumber());
        System.out.println("服务商名称 = "+tm.getSimOperatorName());
    }
}

效果如图：

***听

提供一个Demo，需要注册一个***听器并调用。

package com.example.a4_8telephonymanager;

import android.Manifest;
import android.content.Context;
import android.content.pm.PackageManager;
import android.support.v4.app.ActivityCompat;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.telephony.PhoneStateListener;
import android.telephony.TelephonyManager;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        testTelephonyManager();
    }

    //电话服务管理API的方法
    private void testTelephonyManager() {
        TelephonyManager tm = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
        System.out.println("电话状态：" + tm.getCallState());
        if (ActivityCompat.checkSelfPermission(this, Manifest.permission.READ_PHONE_STATE) != PackageManager.PERMISSION_GRANTED) {
            // TODO: Consider calling
            //    ActivityCompat#requestPermissions
            // here to request the missing permissions, and then overriding
            //   public void onRequestPermissionsResult(int requestCode, String[] permissions,
            //                                          int[] grantResults)
            // to handle the case where the user grants the permission. See the documentation
            // for ActivityCompat#requestPermissions for more details.
            return;
        }
        System.out.println("唯一的设备 = " + tm.getDeviceId());
        System.out.println("设备的软件版本号 = "+tm.getDeviceSoftwareVersion());
        System.out.println("手机号 = "+tm.getLine1Number());
        System.out.println("获取ISO标准的国家码,即国际长途区号 = "+tm.getNetworkCountryIso());
        System.out.println("当前使用的网络类型 = "+tm.getNetworkType());
        System.out.println("手机类型 = "+tm.getPhoneType());
        System.out.println("SIM的状态信息 = "+tm.getSimState());
        System.out.println("唯一的用户ID = "+tm.getSubscriberId());
        System.out.println("SIM卡的序列号 = "+tm.getSimSerialNumber());
        System.out.println("服务商名称 = "+tm.getSimOperatorName());

        tm.listen(new MyPhoneStateListener(),PhoneStateListener.LISTEN_CALL_STATE);
    }
    //电话服务***
    private  static class MyPhoneStateListener extends PhoneStateListener{
        @Override
        public void onCallStateChanged(int state, String phoneNumber) {
            super.onCallStateChanged(state, phoneNumber);
            switch (state){
                case TelephonyManager.CALL_STATE_RINGING:
                    System.out.println("响铃状态");
                    break;
                case TelephonyManager.CALL_STATE_IDLE:
                    System.out.println("挂机状态");
                    break;
                case TelephonyManager.CALL_STATE_OFFHOOK:
                    System.out.println("接听状态");
                    break;
            }
        }
    }
}

效果如下：

监听来电显示

需要三个权限，从上到下分别为:读取电话状态、开机启动、悬浮窗口

<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW"/>

借助一个广播接收器完成，MainActivity只需要补上一句发送广播即可

//来电——发送一个广播
sendBroadcast(new Intent(this,PhoneListenerReceiver.class));

广播接收器的一些常规步骤不能省

完整代码如下：

package com.example.a4_8telephonymanager;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.telephony.PhoneStateListener;
import android.telephony.TelephonyManager;
import android.view.WindowManager;
import android.widget.TextView;

public class PhoneListenerReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
        //获取电话管理器对象，并注册***听器
        TelephonyManager tm= (TelephonyManager) context.getApplicationContext().getSystemService(Context.TELEPHONY_SERVICE);
        tm.listen(new MyphoneStateLinstener(context),PhoneStateListener.LISTEN_CALL_STATE);
        System.out.println("***听器注册成功");
    }
    //声明窗体管理器
    static WindowManager wm = null;

    private class MyphoneStateLinstener extends PhoneStateListener{
        private Context context;
        //来电显示——文字部分
        TextView textView=null;
        public MyphoneStateLinstener(Context context) {
            this.context=context;
        }
        @Override
        public void onCallStateChanged(int state, String phoneNumber) {
            super.onCallStateChanged(state, phoneNumber);
            //处于响铃状态
            if (state == TelephonyManager.CALL_STATE_RINGING) {
                //获取WindowManager对象
                wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
                WindowManager.LayoutParams params = new WindowManager.LayoutParams();
                //设置为一个浮动层
                params.type = WindowManager.LayoutParams.TYPE_SYSTEM_OVERLAY;
                //设置为不能触摸和没有焦点
                params.flags = WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL|WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE;
                params.width = WindowManager.LayoutParams.WRAP_CONTENT;
                params.height = WindowManager.LayoutParams.WRAP_CONTENT;
                textView = new TextView(context);
                textView.setText("当前来电号码为：" + phoneNumber);
                //添加到浮动层
                wm.addView(textView, params); }
                //如果处于挂机状态，置空，回收
                else if (state == TelephonyManager.CALL_STATE_IDLE) {
                if (wm != null) {
                    wm.removeView(textView);
                    wm = null;
                }
            }
        }
    }
}

效果如👈

从零开始水安卓——电话服务

TelephonyManager

概述

常用API方法

***听

监听来电显示