Moving some calls off the UI thread

This saves ~5ms in onNewIntent

Bug: 67305604
Change-Id: Ic97727b1c526e50bd3c8a1d8f511e1d7fd5e05e7

src/com/android/launcher3/ExtendedEditText.java

@@ -16,12 +16,16 @@
 package com.android.launcher3;
 
 import android.content.Context;
+import android.text.TextUtils;
 import android.util.AttributeSet;
 import android.view.DragEvent;
 import android.view.KeyEvent;
+import android.view.View;
 import android.view.inputmethod.InputMethodManager;
 import android.widget.EditText;
 
+import com.android.launcher3.util.UiThreadHelper;
+
 
 /**
  * The edit text that reports back when the back key has been pressed.
@@ -102,8 +106,7 @@ public class ExtendedEditText extends EditText {
     }
 
     public void dispatchBackKey() {
-        ((InputMethodManager) getContext().getSystemService(Context.INPUT_METHOD_SERVICE))
-                .hideSoftInputFromWindow(getWindowToken(), 0);
+        UiThreadHelper.hideKeyboardAsync(getContext(), getWindowToken());
         if (mBackKeyListener != null) {
             mBackKeyListener.onBackKey();
         }
@@ -121,4 +124,17 @@ public class ExtendedEditText extends EditText {
     public boolean isSuggestionsEnabled() {
         return !mForceDisableSuggestions && super.isSuggestionsEnabled();
     }
+
+    public void reset() {
+        if (!TextUtils.isEmpty(getText())) {
+            setText("");
+        }
+        if (isFocused()) {
+            View nextFocus = focusSearch(View.FOCUS_DOWN);
+            if (nextFocus != null) {
+                nextFocus.requestFocus();
+            }
+        }
+        UiThreadHelper.hideKeyboardAsync(getContext(), getWindowToken());
+    }
 }