TunerActivity.java revision 98d7c7a84d007d3de0c3394d8a93253a313eda27 
1/*
2 * Copyright (C) 2015 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 */
16package com.android.systemui.tuner;
17
18import android.app.Fragment;
19import android.app.FragmentTransaction;
20import android.os.Bundle;
21import android.support.v14.preference.PreferenceFragment;
22import android.support.v7.preference.Preference;
23import android.support.v7.preference.PreferenceScreen;
24import android.util.Log;
25
26import com.android.settingslib.drawer.SettingsDrawerActivity;
27import com.android.systemui.R;
28
29public class TunerActivity extends SettingsDrawerActivity implements
30        PreferenceFragment.OnPreferenceStartFragmentCallback,
31        PreferenceFragment.OnPreferenceStartScreenCallback {
32
33    private static final String TAG_TUNER = "tuner";
34
35    protected void onCreate(Bundle savedInstanceState) {
36        super.onCreate(savedInstanceState);
37
38        if (getFragmentManager().findFragmentByTag(TAG_TUNER) == null) {
39            boolean showDemoMode = getIntent().getAction().equals(
40                    "com.android.settings.action.DEMO_MODE");
41            boolean showNightMode = getIntent().getBooleanExtra(
42                    NightModeFragment.EXTRA_SHOW_NIGHT_MODE, false);
43            final PreferenceFragment fragment = showNightMode ? new NightModeFragment()
44                    : showDemoMode ? new DemoModeFragment()
45                    : new TunerFragment();
46            getFragmentManager().beginTransaction().replace(R.id.content_frame,
47                    fragment, TAG_TUNER).commit();
48        }
49    }
50
51    @Override
52    public void onBackPressed() {
53        if (!getFragmentManager().popBackStackImmediate()) {
54            super.onBackPressed();
55        }
56    }
57
58    @Override
59    public boolean onPreferenceStartFragment(PreferenceFragment caller, Preference pref) {
60        try {
61            Class<?> cls = Class.forName(pref.getFragment());
62            Fragment fragment = (Fragment) cls.newInstance();
63            FragmentTransaction transaction = getFragmentManager().beginTransaction();
64            setTitle(pref.getTitle());
65            transaction.replace(R.id.content_frame, fragment);
66            transaction.addToBackStack("PreferenceFragment");
67            transaction.commit();
68            return true;
69        } catch (ClassNotFoundException | InstantiationException | IllegalAccessException e) {
70            Log.d("TunerActivity", "Problem launching fragment", e);
71            return false;
72        }
73    }
74
75    @Override
76    public boolean onPreferenceStartScreen(PreferenceFragment caller, PreferenceScreen pref) {
77        FragmentTransaction transaction = getFragmentManager().beginTransaction();
78        SubSettingsFragment fragment = new SubSettingsFragment();
79        final Bundle b = new Bundle(1);
80        b.putString(PreferenceFragment.ARG_PREFERENCE_ROOT, pref.getKey());
81        fragment.setArguments(b);
82        fragment.setTargetFragment(caller, 0);
83        transaction.replace(R.id.content_frame, fragment);
84        transaction.addToBackStack("PreferenceFragment");
85        transaction.commit();
86        return true;
87    }
88
89    public static class SubSettingsFragment extends PreferenceFragment {
90        @Override
91        public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
92            setPreferenceScreen((PreferenceScreen) ((PreferenceFragment) getTargetFragment())
93                    .getPreferenceScreen().findPreference(rootKey));
94        }
95    }
96
97}
98