TunerActivity.java revision de850bbcaa61c1874b803f2086443febbafd81a4 
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.Dependency;
28import com.android.systemui.R;
29
30public class TunerActivity extends SettingsDrawerActivity implements
31        PreferenceFragment.OnPreferenceStartFragmentCallback,
32        PreferenceFragment.OnPreferenceStartScreenCallback {
33
34    static final String ACTIVITY_ALIAS_NAME = "com.android.systemui.tuner.TunerSettingLink";
35
36    private static final String TAG_TUNER = "tuner";
37
38    protected void onCreate(Bundle savedInstanceState) {
39        super.onCreate(savedInstanceState);
40        Dependency.initDependencies(this);
41
42        if (getFragmentManager().findFragmentByTag(TAG_TUNER) == null) {
43            final String action = getIntent().getAction();
44            boolean showDemoMode = action != null && action.equals(
45                    "com.android.settings.action.DEMO_MODE");
46            final PreferenceFragment fragment = showDemoMode ? new DemoModeFragment()
47                    : new TunerFragment();
48            getFragmentManager().beginTransaction().replace(R.id.content_frame,
49                    fragment, TAG_TUNER).commit();
50        }
51    }
52
53    @Override
54    public void onBackPressed() {
55        if (!getFragmentManager().popBackStackImmediate()) {
56            super.onBackPressed();
57        }
58    }
59
60    @Override
61    public boolean onPreferenceStartFragment(PreferenceFragment caller, Preference pref) {
62        try {
63            Class<?> cls = Class.forName(pref.getFragment());
64            Fragment fragment = (Fragment) cls.newInstance();
65            FragmentTransaction transaction = getFragmentManager().beginTransaction();
66            setTitle(pref.getTitle());
67            transaction.replace(R.id.content_frame, fragment);
68            transaction.addToBackStack("PreferenceFragment");
69            transaction.commit();
70            return true;
71        } catch (ClassNotFoundException | InstantiationException | IllegalAccessException e) {
72            Log.d("TunerActivity", "Problem launching fragment", e);
73            return false;
74        }
75    }
76
77    @Override
78    public boolean onPreferenceStartScreen(PreferenceFragment caller, PreferenceScreen pref) {
79        FragmentTransaction transaction = getFragmentManager().beginTransaction();
80        SubSettingsFragment fragment = new SubSettingsFragment();
81        final Bundle b = new Bundle(1);
82        b.putString(PreferenceFragment.ARG_PREFERENCE_ROOT, pref.getKey());
83        fragment.setArguments(b);
84        fragment.setTargetFragment(caller, 0);
85        transaction.replace(R.id.content_frame, fragment);
86        transaction.addToBackStack("PreferenceFragment");
87        transaction.commit();
88        return true;
89    }
90
91    public static class SubSettingsFragment extends PreferenceFragment {
92        @Override
93        public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
94            setPreferenceScreen((PreferenceScreen) ((PreferenceFragment) getTargetFragment())
95                    .getPreferenceScreen().findPreference(rootKey));
96        }
97    }
98
99}
100