Fix for F/C in WifiConfigInfo

1. Turn off Wi-Fi
2. Open the dialer and input *#*#4636#*#*
3. Navigate to Wi-Fi information -> Wi-Fi config and observe "Unfortunately,
Settings has stopped" dialog.

Change-Id: I6ed59fc157e9bd8a46e00184b91a1a9f0412d198
Signed-off-by: Shuhrat Dehkanov <uzbmaster@gmail.com>

src/com/android/settings/wifi/WifiConfigInfo.java

@@ -31,15 +31,9 @@ import com.android.settings.R;
  */
 public class WifiConfigInfo extends Activity {
 
-    private static final String TAG = "WifiConfigInfo";
-
     private TextView mConfigList;
     private WifiManager mWifiManager;
 
-    //============================
-    // Activity lifecycle
-    //============================
-
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -52,12 +46,16 @@ public class WifiConfigInfo extends Activity {
     @Override
     protected void onResume() {
         super.onResume();
+        if (mWifiManager.isWifiEnabled()) {
             final List<WifiConfiguration> wifiConfigs = mWifiManager.getConfiguredNetworks();
             StringBuffer configList  = new StringBuffer();
             for (int i = wifiConfigs.size() - 1; i >= 0; i--) {
                 configList.append(wifiConfigs.get(i));
             }
             mConfigList.setText(configList);
+        } else {
+            mConfigList.setText(R.string.wifi_state_disabled);
+        }
     }
 
 }