[Settings] Request focus in Add network dialog

Request focus for SSID EditText to show IME when user choose add network in wifi
screen.

Bug: 72882629
Test: RunSettingsRobotests & Manual test
Change-Id: Iaf4db085c3d310a7f524217a90dc1fb7573d6814

tests/robotests/src/com/android/settings/wifi/WifiConfigControllerTest.java

@@ -210,6 +210,15 @@ public class WifiConfigControllerTest {
         assertThat(mView.findViewById(R.id.eap).getVisibility()).isEqualTo(View.GONE);
     }
 
+    @Test
+    public void ssidGetFocus_addNewNetwork_shouldReturnTrue() {
+        mController = new TestWifiConfigController(mConfigUiBase, mView, null /* accessPoint */,
+                WifiConfigUiBase.MODE_CONNECT);
+        final TextView ssid = mView.findViewById(R.id.ssid);
+        // Verify ssid text get focus when add new network (accesspoint is null)
+        assertThat(ssid.isFocused()).isTrue();
+    }
+
     public class TestWifiConfigController extends WifiConfigController {
 
         private TestWifiConfigController(