Fix MUT cannot connect to AP by WPS after rotating MUT

While MUT is connecting to AP, rotate MUT,
then MUT can not connect to AP by WPS.
To ensure MUT can connect to AP by WPS, invoke startWps() to
re-connect after rotating MUT.

Bug: 37557898

Change-Id: Icbaff96895ad52f5c1bc6df5d180f69989527667

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

@@ -150,6 +150,9 @@ public class WpsDialog extends AlertDialog {
             DialogState dialogState = mDialogState.valueOf(savedInstanceState.getString(DIALOG_STATE));
             String msg = savedInstanceState.getString(DIALOG_MSG_STRING);
             updateDialog(dialogState, msg);
+            if (dialogState == DialogState.WPS_START) {
+                startWps();
+            }
         }
     }
 
@@ -180,9 +183,7 @@ public class WpsDialog extends AlertDialog {
 
         setView(mView);
         if (savedInstanceState == null) {
-            WpsInfo wpsConfig = new WpsInfo();
-            wpsConfig.setup = mWpsSetup;
-            mWifiManager.startWps(wpsConfig, mWpsListener);
+            startWps();
         }
         super.onCreate(savedInstanceState);
     }
@@ -276,4 +277,9 @@ public class WpsDialog extends AlertDialog {
         }
     }
 
+    private void startWps() {
+        WpsInfo wpsConfig = new WpsInfo();
+        wpsConfig.setup = mWpsSetup;
+        mWifiManager.startWps(wpsConfig, mWpsListener);
+    }
 }