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.settings.applications.appinfo; 18 19 import android.content.Context; 20 import android.os.Bundle; 21 import android.text.TextUtils; 22 23 import androidx.preference.Preference; 24 import androidx.preference.PreferenceScreen; 25 26 import com.android.settings.SettingsPreferenceFragment; 27 import com.android.settings.core.BasePreferenceController; 28 29 /* 30 * Abstract base controller for the app detail preferences that refresh the state when the app state 31 * changes and launch a specific detail fragment when the preference is clicked. 32 */ 33 public abstract class AppInfoPreferenceControllerBase extends BasePreferenceController 34 implements AppInfoDashboardFragment.Callback { 35 36 protected AppInfoDashboardFragment mParent; 37 protected Preference mPreference; 38 39 private final Class<? extends SettingsPreferenceFragment> mDetailFragmentClass; 40 AppInfoPreferenceControllerBase(Context context, String preferenceKey)41 public AppInfoPreferenceControllerBase(Context context, String preferenceKey) { 42 super(context, preferenceKey); 43 mDetailFragmentClass = getDetailFragmentClass(); 44 } 45 46 @Override getAvailabilityStatus()47 public int getAvailabilityStatus() { 48 return AVAILABLE; 49 } 50 51 @Override displayPreference(PreferenceScreen screen)52 public void displayPreference(PreferenceScreen screen) { 53 super.displayPreference(screen); 54 mPreference = screen.findPreference(getPreferenceKey()); 55 } 56 57 @Override handlePreferenceTreeClick(Preference preference)58 public boolean handlePreferenceTreeClick(Preference preference) { 59 if (TextUtils.equals(preference.getKey(), mPreferenceKey) && mDetailFragmentClass != null) { 60 AppInfoDashboardFragment.startAppInfoFragment( 61 mDetailFragmentClass, -1, getArguments(), mParent, mParent.getAppEntry()); 62 return true; 63 } 64 return false; 65 } 66 67 @Override refreshUi()68 public void refreshUi() { 69 updateState(mPreference); 70 } 71 setParentFragment(AppInfoDashboardFragment parent)72 public void setParentFragment(AppInfoDashboardFragment parent) { 73 mParent = parent; 74 parent.addToCallbackList(this); 75 } 76 77 /** 78 * Gets the fragment class to be launched when the preference is clicked. 79 * @return the fragment to launch 80 */ getDetailFragmentClass()81 protected Class<? extends SettingsPreferenceFragment> getDetailFragmentClass() { 82 return null; 83 } 84 85 /** 86 * Gets any extras that should be passed to the fragment class when the preference is clicked. 87 * @return a bundle of extras to include in the launch intent 88 */ getArguments()89 protected Bundle getArguments() { 90 return null; 91 } 92 93 } 94