FragmentSupportPreferences.java revision e7841c012a02ac593533709f014632f35551e6fc 
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.supportpreference;
18
19import android.app.Activity;
20import android.app.Fragment;
21import android.os.Bundle;
22import android.support.v14.preference.PreferenceFragment;
23import android.support.v7.preference.PreferenceScreen;
24
25/**
26 * Demonstration of PreferenceFragment, showing a single fragment in an
27 * activity.
28 */
29public class FragmentSupportPreferences extends Activity
30        implements PreferenceFragment.OnPreferenceStartScreenCallback {
31
32    @Override
33    protected void onCreate(Bundle savedInstanceState) {
34        super.onCreate(savedInstanceState);
35
36        // Display the fragment as the main content.
37        getFragmentManager().beginTransaction().replace(android.R.id.content,
38                new PrefsFragment()).commit();
39    }
40
41    @Override
42    public boolean onPreferenceStartScreen(PreferenceFragment caller, PreferenceScreen pref) {
43        final Fragment f = new PrefsFragment();
44        final Bundle args = new Bundle(1);
45        args.putString(PreferenceFragment.ARG_PREFERENCE_ROOT, pref.getKey());
46        f.setArguments(args);
47        getFragmentManager().beginTransaction().replace(android.R.id.content, f)
48                .addToBackStack(null)
49                .commit();
50        return true;
51    }
52
53    //BEGIN_INCLUDE(support_fragment)
54    public static class PrefsFragment extends PreferenceFragment {
55
56        @Override
57        public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
58            // Load the preferences from an XML resource
59            setPreferencesFromResource(R.xml.preferences, rootKey);
60        }
61    }
62//END_INCLUDE(support_fragment)
63}
64