18_ Mobile network Connection Status

Determine the network connection status of your phone to identify mobile and WiFi connections.

The following procedure, refer to from http://www.cnblogs.com/qingblog/archive/2012/07/19/2598983.html

Obtaining network information requires that the appropriate permissions be added to the Androidmanifest.xml file.

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

1 /**2 * Determine network connection Status3 * 1. Mobile network Connection4 * 2. WiFi Internet connection5 * 3. No Internet connection6  * 7 * The method of judging is: use Connectivitymanager to get networkinfo. 8  * 9 * Several functions are returned at the back of the programTen * The following procedures, reference fromhttp://www.cnblogs.com/qingblog/archive/2012/07/19/2598983.html One  */ A  -  Packagecom.example.networkstate; -  the Importandroid.app.Activity; - ImportAndroid.content.BroadcastReceiver; - ImportAndroid.content.Context; - Importandroid.content.Intent; + ImportAndroid.content.IntentFilter; - ImportAndroid.net.ConnectivityManager; + ImportAndroid.net.NetworkInfo; A ImportAndroid.os.Bundle; at ImportAndroid.widget.TextView; -  -  Public classMainactivityextendsActivity { -  -     Privatebroadcastreceiver Connectionreceiver; -     PrivateTextView tvnetworkstate; in  - @Override to     protected voidonCreate (Bundle savedinstancestate) { +         Super. OnCreate (savedinstancestate); - Setcontentview (r.layout.activity_main); the  *Tvnetworkstate =(TextView) Findviewbyid (r.id.tvnetworkstate); $ Panax NotoginsengConnectionreceiver =NewBroadcastreceiver () { -  the @Override +              Public voidOnReceive (Context context, Intent Intent) { AConnectivitymanager connectmgr =(Connectivitymanager) Getsystemservice (connectivity_service); theNetworkinfo Mobnetinfo =Connectmgr + . Getnetworkinfo (connectivitymanager.type_mobile); -Networkinfo Wifinetinfo =Connectmgr $ . Getnetworkinfo (Connectivitymanager.type_wifi); $  -                 if(mobnetinfo.isconnected ()) { -Tvnetworkstate.settext ("Phone network connection ~"); the}Else if(wifinetinfo.isconnected ()) { -Tvnetworkstate.settext ("WiFi Network connection ~");Wuyi}Else { theTvnetworkstate.settext ("No Internet connection ~"); -                 } Wu  -                 //if (!mobnetinfo.isconnected () &&!wifinetinfo.isconnected ()) About                 // { $                 // //Unconnect Network -                 //Tvnetworkstate.settext ("No network connection at this moment!") "); -                 //} else { -                 // //Connect Network A                 //Tvnetworkstate.settext ("Congratulations, there is Internet connection ~"); +                 // } the             } -  $         }; the  theIntentfilter Intentfilter =NewIntentfilter (); the intentfilter.addaction (connectivitymanager.connectivity_action); the registerreceiver (Connectionreceiver, intentfilter); -     } in  the @Override the     protected voidOnDestroy () { About         Super. OnDestroy (); the         if(Connectionreceiver! =NULL) { the Unregisterreceiver (connectionreceiver); the         } +     } -  the      Public Booleanisnetworkconneted (Context context) {Bayi         if(Context! =NULL) { theConnectivitymanager Connectivitymanager =(connectivitymanager) Context the . Getsystemservice (context.connectivity_service); -Networkinfo Networkinfo =Connectivitymanager - . Getactivenetworkinfo (); the             if(Networkinfo! =NULL) { the                 returnnetworkinfo.isavailable (); the             } the         } -         return false; the     } the  the      Public Booleaniswificonnected (Context context) {94         if(Context! =NULL) { theConnectivitymanager Connectivitymanager =(connectivitymanager) Context the . Getsystemservice (context.connectivity_service); theNetworkinfo Networkinfo =Connectivitymanager98 . Getnetworkinfo (Connectivitymanager.type_wifi); About             if(Networkinfo! =NULL) { -                 returnnetworkinfo.isavailable ();101             }102         }103         return false;104     } the 106      Public Booleanismobileconnected (Context context) {107         if(Context! =NULL) {108Connectivitymanager Mconnectivitymanager =(connectivitymanager) Context109 . Getsystemservice (context.connectivity_service); theNetworkinfo Mmobilenetworkinfo =Mconnectivitymanager111 . Getnetworkinfo (connectivitymanager.type_mobile); the             if(Mmobilenetworkinfo! =NULL) {113                 returnmmobilenetworkinfo.isavailable (); the             } the         } the         return false;117     }118 119      Public Static intGetconnectedtype (Context context) { -         if(Context! =NULL) {121Connectivitymanager Mconnectivitymanager =(connectivitymanager) Context122 . Getsystemservice (context.connectivity_service);123Networkinfo Mnetworkinfo =Mconnectivitymanager124 . Getactivenetworkinfo (); the             if(Mnetworkinfo! =NULL&&mnetworkinfo.isavailable ()) {126                 returnMnetworkinfo.gettype ();127             } -         }129         return-1; the     }131}

18_ Mobile network Connection Status