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 17package com.example.android.leanback; 18 19import android.os.Bundle; 20import android.widget.Toast; 21 22import androidx.leanback.preference.LeanbackPreferenceFragment; 23import androidx.leanback.preference.LeanbackSettingsFragment; 24import androidx.preference.Preference; 25import androidx.preference.PreferenceFragment; 26import androidx.preference.PreferenceScreen; 27 28import java.util.Arrays; 29 30 31 32public class SettingsFragment extends LeanbackSettingsFragment { 33 34 35 private static final int sPreferenceResId = R.xml.prefs; 36 37 @Override 38 public void onPreferenceStartInitialScreen() { 39 startPreferenceFragment(buildPreferenceFragment(null)); 40 } 41 42 @Override 43 public boolean onPreferenceStartFragment(PreferenceFragment preferenceFragment, 44 Preference preference) { 45 return false; 46 } 47 48 @Override 49 public boolean onPreferenceStartScreen(PreferenceFragment preferenceFragment, 50 PreferenceScreen preferenceScreen) { 51 PreferenceFragment frag = buildPreferenceFragment(preferenceScreen.getKey()); 52 frag.setTargetFragment(preferenceFragment, 0); 53 startPreferenceFragment(frag); 54 return true; 55 } 56 57 58 private PreferenceFragment buildPreferenceFragment(String rootKey) { 59 PreferenceFragment fragment = new PrefFragment(); 60 Bundle args = new Bundle(); 61 args.putString(PreferenceFragment.ARG_PREFERENCE_ROOT, rootKey); 62 fragment.setArguments(args); 63 return fragment; 64 } 65 66 public static class PrefFragment extends LeanbackPreferenceFragment { 67 68 @Override 69 public void onCreate(Bundle savedInstanceState) { 70 super.onCreate(savedInstanceState); 71 } 72 73 @Override 74 public void onCreatePreferences(Bundle bundle, String rootKey) { 75 setPreferencesFromResource(sPreferenceResId, rootKey); 76 } 77 78 @Override 79 public boolean onPreferenceTreeClick(Preference preference) { 80 final String[] keys = {"prefs_wifi_connect_wps", "prefs_date", "prefs_time", 81 "prefs_date_time_use_timezone", "app_banner_sample_app", "pref_force_stop", 82 "pref_uninstall", "pref_more_info"}; 83 if (Arrays.asList(keys).contains(preference.getKey())) { 84 Toast.makeText(getActivity(), "Implement your own action handler.", 85 Toast.LENGTH_SHORT).show(); 86 return true; 87 } 88 return super.onPreferenceTreeClick(preference); 89 } 90 91 } 92} 93