1 /* 2 * Copyright (C) 2017 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 17 package com.android.settingslib.development; 18 19 import android.content.Context; 20 21 import androidx.preference.Preference; 22 import androidx.preference.PreferenceScreen; 23 24 import com.android.settingslib.core.AbstractPreferenceController; 25 26 /** 27 * This controller is used handle changes for the master switch in the developer options page. 28 * 29 * All Preference Controllers that are a part of the developer options page should inherit this 30 * class. 31 */ 32 public abstract class DeveloperOptionsPreferenceController extends AbstractPreferenceController { 33 34 protected Preference mPreference; 35 DeveloperOptionsPreferenceController(Context context)36 public DeveloperOptionsPreferenceController(Context context) { 37 super(context); 38 } 39 40 /** 41 * Child classes should override this method to create custom logic for hiding preferences. 42 * 43 * @return true if the preference is to be displayed. 44 */ 45 @Override isAvailable()46 public boolean isAvailable() { 47 return true; 48 } 49 50 @Override displayPreference(PreferenceScreen screen)51 public void displayPreference(PreferenceScreen screen) { 52 super.displayPreference(screen); 53 mPreference = screen.findPreference(getPreferenceKey()); 54 } 55 56 /** 57 * Called when developer options is enabled 58 */ onDeveloperOptionsEnabled()59 public void onDeveloperOptionsEnabled() { 60 if (isAvailable()) { 61 onDeveloperOptionsSwitchEnabled(); 62 } 63 } 64 65 /** 66 * Called when developer options is disabled 67 */ onDeveloperOptionsDisabled()68 public void onDeveloperOptionsDisabled() { 69 if (isAvailable()) { 70 onDeveloperOptionsSwitchDisabled(); 71 } 72 } 73 74 /** 75 * Called when developer options is enabled and the preference is available 76 */ onDeveloperOptionsSwitchEnabled()77 protected void onDeveloperOptionsSwitchEnabled() { 78 mPreference.setEnabled(true); 79 } 80 81 /** 82 * Called when developer options is disabled and the preference is available 83 */ onDeveloperOptionsSwitchDisabled()84 protected void onDeveloperOptionsSwitchDisabled() { 85 mPreference.setEnabled(false); 86 } 87 88 } 89