Removing usage of unsupportedApi AutoCompleteTextView.ensureImeVisible from SearchDialog

Bug: 124452405
Test: No CTS test because SearchDialog is not exposed externally.

Change-Id: Iea9c0e8191992df22032cc4edaaed1509151901d

core/java/android/app/SearchDialog.java

@@ -47,8 +47,10 @@ import android.view.Window;
 import android.view.WindowManager;
 import android.view.inputmethod.InputMethodManager;
 import android.widget.AutoCompleteTextView;
+import android.widget.Filterable;
 import android.widget.ImageView;
 import android.widget.LinearLayout;
+import android.widget.ListPopupWindow;
 import android.widget.SearchView;
 import android.widget.TextView;
 
@@ -370,7 +372,10 @@ public class SearchDialog extends Dialog {
             updateSearchAppIcon();
             updateSearchBadge();
             if (isLandscapeMode(getContext())) {
-                mSearchAutoComplete.ensureImeVisible(true);
+                mSearchAutoComplete.setInputMethodMode(ListPopupWindow.INPUT_METHOD_NEEDED);
+                if (mSearchAutoComplete.isDropDownAlwaysVisible() || enoughToFilter()) {
+                    mSearchAutoComplete.showDropDown();
+                }
             }
         }
     }
@@ -381,6 +386,15 @@ public class SearchDialog extends Dialog {
                 == Configuration.ORIENTATION_LANDSCAPE;
     }
 
+    private boolean enoughToFilter() {
+        Filterable filterableAdapter = (Filterable) mSearchAutoComplete.getAdapter();
+        if (filterableAdapter == null || filterableAdapter.getFilter() == null) {
+            return false;
+        }
+
+        return mSearchAutoComplete.enoughToFilter();
+    }
+
     /**
      * Update the UI according to the info in the current value of {@link #mSearchable}.
      */