To hide the soft input window when press skip button on Skip setup for

PIN and face dialog of Set a PIN screen to avoid flash during transition.

bug:191181054
Test: SUW
Test: make -j RunSettingsRoboTests

Change-Id: I229b190de5e6dc714bbb8408e91c363e90b18f30

tests/robotests/src/com/android/settings/password/SetupChooseLockPasswordTest.java

@@ -24,6 +24,7 @@ import static org.robolectric.RuntimeEnvironment.application;
 import android.content.Intent;
 import android.os.Bundle;
 import android.view.View;
+import android.view.inputmethod.InputMethodManager;
 import android.widget.Button;
 
 import androidx.appcompat.app.AlertDialog;
@@ -55,6 +56,7 @@ import org.robolectric.annotation.Implementation;
 import org.robolectric.annotation.Implements;
 import org.robolectric.shadows.ShadowActivity;
 import org.robolectric.shadows.ShadowDialog;
+import org.robolectric.shadows.ShadowInputMethodManager;
 
 import java.util.Collections;
 import java.util.List;
@@ -149,6 +151,9 @@ public class SetupChooseLockPasswordTest {
     @Test
     public void createActivity_skipButtonInIntroductionStage_shouldBeVisible() {
         SetupChooseLockPassword activity = createSetupChooseLockPassword();
+        final InputMethodManager inputMethodManager = activity
+                .getSystemService(InputMethodManager.class);
+        final ShadowInputMethodManager shadowImm = Shadows.shadowOf(inputMethodManager);
 
         final PartnerCustomizationLayout layout = activity.findViewById(R.id.setup_wizard_layout);
         final Button skipOrClearButton =
@@ -159,6 +164,7 @@ public class SetupChooseLockPasswordTest {
         skipOrClearButton.performClick();
         final AlertDialog chooserDialog = ShadowAlertDialogCompat.getLatestAlertDialog();
         assertThat(chooserDialog).isNotNull();
+        assertThat(shadowImm.isSoftInputVisible()).isFalse();
     }
 
     @Test