1 /*
2  * Copyright (C) 2016 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.android.tv.ui;
18 
19 import android.content.Context;
20 import android.support.v17.leanback.app.GuidedStepFragment;
21 import android.support.v17.leanback.widget.GuidedAction;
22 import android.support.v17.leanback.widget.GuidedActionsStylist;
23 
24 import com.android.tv.R;
25 
26 /**
27  * Extended stylist class used for {@link GuidedStepFragment} with divider support.
28  */
29 public class GuidedActionsStylistWithDivider extends GuidedActionsStylist {
30     /**
31      * ID used mark a divider.
32      */
33     public static final int ACTION_DIVIDER = -100;
34     private static final int VIEW_TYPE_DIVIDER = 1;
35 
36     @Override
getItemViewType(GuidedAction action)37     public int getItemViewType(GuidedAction action) {
38         if (action.getId() == ACTION_DIVIDER) {
39             return VIEW_TYPE_DIVIDER;
40         }
41         return super.getItemViewType(action);
42     }
43 
44     @Override
onProvideItemLayoutId(int viewType)45     public int onProvideItemLayoutId(int viewType) {
46         if (viewType == VIEW_TYPE_DIVIDER) {
47             return R.layout.guided_action_divider;
48         }
49         return super.onProvideItemLayoutId(viewType);
50     }
51 
52     /**
53      * Creates a divider for {@link GuidedStepFragment}, targeted fragments must use
54      * {@link GuidedActionsStylistWithDivider} as its actions' stylist for divider to work.
55      */
createDividerAction(Context context)56     public static GuidedAction createDividerAction(Context context) {
57         return new GuidedAction.Builder(context)
58                 .id(ACTION_DIVIDER)
59                 .title(null)
60                 .description(null)
61                 .focusable(false)
62                 .infoOnly(true)
63                 .build();
64     }
65 }
66