SettingsFragment.java

/*
 * Copyright (C) 2016 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.example.android.leanback;

import android.os.Bundle;
import android.support.v14.preference.PreferenceFragment;
import android.support.v17.preference.LeanbackPreferenceFragment;
import android.support.v17.preference.LeanbackSettingsFragment;
import android.support.v7.preference.Preference;
import android.support.v7.preference.PreferenceScreen;
import android.widget.Toast;

import java.util.Arrays;



public class SettingsFragment extends LeanbackSettingsFragment {


    private static final int sPreferenceResId = R.xml.prefs;

    @Override
    public void onPreferenceStartInitialScreen() {
        startPreferenceFragment(buildPreferenceFragment(null));
    }

    @Override
    public boolean onPreferenceStartFragment(PreferenceFragment preferenceFragment,
                                             Preference preference) {
        return false;
    }

    @Override
    public boolean onPreferenceStartScreen(PreferenceFragment preferenceFragment,
                                           PreferenceScreen preferenceScreen) {
        PreferenceFragment frag = buildPreferenceFragment(preferenceScreen.getKey());
        frag.setTargetFragment(preferenceFragment, 0);
        startPreferenceFragment(frag);
        return true;
    }


    private PreferenceFragment buildPreferenceFragment(String rootKey) {
        PreferenceFragment fragment = new PrefFragment();
        Bundle args = new Bundle();
        args.putString(PreferenceFragment.ARG_PREFERENCE_ROOT, rootKey);
        fragment.setArguments(args);
        return fragment;
    }

    public static class PrefFragment extends LeanbackPreferenceFragment {

        @Override
        public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
        }

        @Override
        public void onCreatePreferences(Bundle bundle, String rootKey) {
            setPreferencesFromResource(sPreferenceResId, rootKey);
        }

        @Override
        public boolean onPreferenceTreeClick(Preference preference) {
            final String[] keys = {"prefs_wifi_connect_wps", "prefs_date", "prefs_time",
                    "prefs_date_time_use_timezone", "app_banner_sample_app", "pref_force_stop",
                    "pref_uninstall", "pref_more_info"};
            if (Arrays.asList(keys).contains(preference.getKey())) {
                Toast.makeText(getActivity(), "Implement your own action handler.",
                        Toast.LENGTH_SHORT).show();
                return true;
            }
            return super.onPreferenceTreeClick(preference);
        }

    }
}