NetworkStateReceiver的简单应用

 1 package com.qf.broadcastreceiver06;
 2 
 3 import android.app.Notification;
 4 import android.app.NotificationManager;
 5 import android.app.PendingIntent;
 6 import android.content.BroadcastReceiver;
 7 import android.content.Context;
 8 import android.content.Intent;
 9 import android.net.ConnectivityManager;
10 import android.net.NetworkInfo;
11 import android.provider.Settings;
12 import android.support.v4.app.NotificationCompat;
13 import android.util.Log;
14 
15 /**
16  * 监测网络连接状态的广播接收器
17  * @author apple
18  *
19  */
20 public class NetworkStateReceiver extends BroadcastReceiver {
21 
22     @Override
23     public void onReceive(Context context, Intent intent) {
24         // TODO 接收网络连接发生变化时的广播
25         Log.i("debug",intent.getAction());
26         
27         //获取当前连接的网络消息（作业2： 封装读取网络连接状态的工具类）
28         
29         //1. 获取系统的网络连接管理组件
30         ConnectivityManager connMgr=
31                 (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
32         
33         //2. 获取当前网络连接对象
34         NetworkInfo activeNetworkInfo = connMgr.getActiveNetworkInfo();
35         
36         //3. 判断当前网络是否连接
37         if(activeNetworkInfo==null){
38             Log.i("debug", "当前网络未连接。。。");
39             //实现功能(作业1)：发送通知，并点击通知打开网络设置页面
40             //Settings.ACTION_WIRELESS_SETTINGS 无线网络设置页面的意图
41             NotificationCompat.Builder builder = new NotificationCompat.Builder(context);
42             
43             builder.setContentTitle("网络未连接")
44                    .setContentText("点击打开网络设置页面")
45                    .setSmallIcon(R.drawable.ic_launcher)
46                    .setDefaults(Notification.DEFAULT_ALL);
47             Intent intent1 = new Intent();
48             intent1.setAction(Settings.ACTION_WIRELESS_SETTINGS);
49             //可以当通知被点击时自动执行 startActiivty()
50             PendingIntent pending = PendingIntent.getActivity(context, 6, intent1, PendingIntent.FLAG_CANCEL_CURRENT);                                                                          //跳转后通知会消失
51             builder.setContentIntent(pending);
52             
53             builder.setAutoCancel(true);//设置通知自动消失
54             
55             Notification ntf = builder.build();
56             
57             NotificationManager manager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
58             
59             manager.notify(88, ntf);
60             
61         }else{
62             Log.i("debug", "当前网络已连接。。。");
63             
64             //4.获取连接的网络类型
65             int type = activeNetworkInfo.getType();
66             if(type==ConnectivityManager.TYPE_WIFI){
67                 Log.i("debug", "当前网络类型：Wifi");
68             }else {
69                 Log.i("debug", "当前网络类型：非Wifi");
70             }
71         }
72     }
73 
74 }