1 /*
2  * Copyright (C) 2019 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.twopanelsettingsoverlay;
18 
19 import android.app.Fragment;
20 
21 import androidx.annotation.NonNull;
22 import androidx.preference.Preference;
23 import androidx.preference.PreferenceFragment;
24 import androidx.preference.PreferenceScreen;
25 
26 import com.android.tv.settings.system.LeanbackPickerDialogFragment;
27 import com.android.tv.settings.system.LeanbackPickerDialogPreference;
28 import com.android.tv.twopanelsettings.TwoPanelSettingsFragment;
29 
30 /**
31  * Base class for settings fragments. Handles launching fragments and dialogs in a reasonably
32  * generic way. Subclasses should only override onPreferenceStartInitialScreen.
33  */
34 
35 public abstract class TwoPanelBaseSettingsFragment extends TwoPanelSettingsFragment {
36 
37     @Override
onPreferenceStartScreen(PreferenceFragment caller, PreferenceScreen pref)38     public final boolean onPreferenceStartScreen(PreferenceFragment caller, PreferenceScreen pref) {
39         return false;
40     }
41 
42     @Override
onCreatePreviewFragment(@onNull Fragment caller, Preference pref)43     public Fragment onCreatePreviewFragment(@NonNull Fragment caller, Preference pref) {
44         Fragment f;
45         if (pref instanceof LeanbackPickerDialogPreference) {
46             final LeanbackPickerDialogPreference dialogPreference = (LeanbackPickerDialogPreference)
47                     pref;
48             f = dialogPreference.getType().equals("date")
49                     ? LeanbackPickerDialogFragment.newDatePickerInstance(pref.getKey())
50                     : LeanbackPickerDialogFragment.newTimePickerInstance(pref.getKey());
51             f.setTargetFragment(caller, 0);
52             return f;
53         } else {
54             return super.onCreatePreviewFragment(caller, pref);
55         }
56     }
57 }
58