1 /*
2  * Copyright (C) 2014 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
5  * in compliance with the License. You may obtain a copy of the License at
6  *
7  * http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software distributed under the License
10  * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
11  * or implied. See the License for the specific language governing permissions and limitations under
12  * the License.
13  */
14 package androidx.leanback.widget;
15 
16 import static androidx.annotation.RestrictTo.Scope.LIBRARY_GROUP;
17 
18 import android.view.View;
19 
20 import androidx.annotation.RestrictTo;
21 
22 /**
23  * Interface for highlighting the item that has focus.
24  */
25 interface FocusHighlightHandler {
26     /**
27      * Called when an item gains or loses focus.
28      * @hide
29      *
30      * @param view The view whose focus is changing.
31      * @param hasFocus True if focus is gained; false otherwise.
32      */
33     @RestrictTo(LIBRARY_GROUP)
onItemFocused(View view, boolean hasFocus)34     void onItemFocused(View view, boolean hasFocus);
35 
36     /**
37      * Called when the view is being created.
38      */
onInitializeView(View view)39     void onInitializeView(View view);
40 }
41