Android中wifi与数据流量的切换监听详解

@Override

publicvoidonReceive(Context context, Intent intent) {

ConnectivityManager manager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);

 NetworkInfo gprs = manager.getNetworkInfo(ConnectivityManager.TYPE_MOBILE);

NetworkInfo wifi = manager.getNetworkInfo(ConnectivityManager.TYPE_WIFI);

if(intent.getAction().equals("Android.net.conn.CONNECTIVITY_CHANGE"))  {

//移动数据连接上时

if(gprs.isConnected()){

}

//wifi连接上时

if(wifi.isConnected()) {

// 切换网络，关闭wifi，开启流量

if(isShow) {//做一个标记，避免多次弹窗的叠加bug，初始值为true，重要

switchNetwork(context);

} 

}

//断网时

if(!netManager.getGRPS().isConnected() || !netManager.getGRPS().isConnected()) {

}  

}

privatevoidswitchNetwork(finalContext context) {

AlertDialog.Builder builder =newAlertDialog.Builder(context, R.style.AlertDialog);

builder.setTitle("提示");

builder.setMessage("请关闭wifi，打开移动网络");

builder.setCancelable(false);

builder.setPositiveButton("确定",newDialogInterface.OnClickListener() {

@Override

publicvoidonClick(DialogInterface dialog,intwhich) {

// 控制网络的开关

controlNetWork(context);

isShow =true;

}

});

AlertDialog dialog = builder.create();

// 需要把对话框的类型设为TYPE_SYSTEM_ALERT，否则对话框无法在广播接收器里弹出

dialog.getWindow().setType(WindowManager.LayoutParams.TYPE_SYSTEM_ALERT);

dialog.show();

isShow =false;

}

privatevoidcontrolNetWork(Context context) {

    WifiManager wifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);

      // 允许流量，阻止wifi

      wifiManager.setWifiEnabled(false);//false表示断开WiFi

      NetManager netManager =newNetManager(context);

      if(!netManager.getGRPS().isConnected()) {

        ConnectivityManager gprsCM = (ConnectivityManager) context

            .getSystemService(Context.CONNECTIVITY_SERVICE);

        Class conmanClass;

        try{

          conmanClass = Class.forName(gprsCM.getClass().getName());

          finalField iConnectivityManagerField = conmanClass.getDeclaredField("mService");

iConnectivityManagerField.setAccessible(true);

          finalObject iConnectivityManager = iConnectivityManagerField.get(gprsCM);

          finalClass iConnectivityManagerClass = Class.forName(iConnectivityManager.getClass().getName());

          finalMethod setMobileDataEnabledMethod = iConnectivityManagerClass

              .getDeclaredMethod("setMobileDataEnabled", Boolean.TYPE);

setMobileDataEnabledMethod.setAccessible(true);//true表示连接网络

          setMobileDataEnabledMethod.invoke(iConnectivityManager,true);

        }catch(Exception e) {

          e.printStackTrace();

        }

      }

    }

  }

      android:name=".NetChangeReceiver"

      android:label="NetChangeReceiver">