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