Android-wifi Network Operation < 10 >

Status of 1.wifi

Constant name constant value NIC status

Wifi_state_disabled:1: WiFi nic is not available

wifi_state_disabling:0: WiFi is shutting down

Wifi_state_enabled:3: WiFi card available

Wifi_state_enabling:2: WiFi card is open

WIFI Wifi_state_unknown:4: Unknown NIC status

2.wifi usage rights

There are four main operating privileges for WIFI:

Change_network_state: Permission to modify network status is allowed.      

Change_wifi_state: Permission to modify the WIFI status is allowed.          

Access_network_state: Permission to allow access to network status.              

access_wifi_state: Permission to allow access to the WIFI status.  

Add permissions in the Androidmanifest.xml file.

1     <uses-permissionAndroid:name= "Android.permission.CHANGE_NETWORK_STATE"></uses-permission>       2 3     <uses-permissionAndroid:name= "Android.permission.CHANGE_WIFI_STATE"></uses-permission>    4 5     <uses-permissionAndroid:name= "Android.permission.ACCESS_NETWORK_STATE"></uses-permission>     6 7     <uses-permissionAndroid:name= "Android.permission.ACCESS_WIFI_STATE"></uses-permission> 

Operation of 3.wifi network card

   operation of the WiFi network card requires a Wifimanager (Class) object, the method to get the object is as follows: &NBSP;
      wifimanager wifimanger= (Wifimanger) Context.getsystemservice (Service.wifi-service); &NBSP;
      turn on wifi card &NBSP;
      wifimanager.setwifienabled (true); Span class= "Apple-converted-space" >&NBSP;
      turn off WiFi NIC &NBSP;
      wifimanager.setwifienabled (false);  
       gets the current status of the NIC &NBSP;
       wifimanager.getwifistate ();

Note: WiFi, Bluetooth function can only be debugged on the phone.

Android-wifi Network Operation < 10 >