[android-developers] Wifi manager woes

Based on some events, I'm trying to switch on or off wifi.

 

 

Switching wifi off works well. But while switching on wifi, 95% of the time, it can't reconnect to my previous wifi network.

If I goto the settings -> wifi, then I see that it's trying to connect, and after a while it'll disconnect.

But wifi service is on.

 

Sometimes 'reconnect' call returns false.

 

 

I went to the extent of waiting until the wifi service is switched on, before reconnecting.

 

Any idea as to how I can reconnect to my previous (or any) wifi network.

 

 

onEvent_SwitchOn()

{

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

android.text.format.Time cTime = new android.text.format.Time();
     android.text.format.Time nTime = new android.text.format.Time();
           
 if(!wifiManager.setWifiEnabled(true)) {
  Log.e("Err", "setWifiEnabled - true, failed");
 }

 

// wait for about 5 seconds until wifi service is actually switched on

cTime.setToNow();
     nTime.setToNow();
     while(true)
     {
      long diff = nTime.toMillis(true) - cTime.toMillis(true);
      if(diff > 5000)
      {
       break;
      }
      int  state = wifiManager.getWifiState();
      
      if(wifiManager.WIFI_STATE_ENABLED == state)
      {
       break;
      }
      
      try {
       Thread.currentThread().sleep(100);
      } catch (InterruptedException e) {
       // TODO Auto-generated catch block
       e.printStackTrace();
      }
      
      nTime.setToNow(); // update to the latest time....
     }

 

if(!wifiManager.reconnect()) {
      Log.e("Err", "Wifi manager (reconnect) failed");
     }

}

 

}

 

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