1 /* 2 * Copyright (C) 2016 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.dashboard; 18 19 import android.content.Context; 20 21 import androidx.preference.Preference; 22 import androidx.preference.PreferenceScreen; 23 24 import com.android.settings.core.PreferenceControllerMixin; 25 import com.android.settingslib.core.AbstractPreferenceController; 26 27 /** 28 * PreferenceController for a dashboard_tile_placeholder, a special preference marking where 29 * dynamic dashboard tiles should be injected in a screen. It is optional when building 30 * preference screen in xml. If not present, all dynamic dashboard tiles will be added to the 31 * bottom of page. 32 */ 33 class DashboardTilePlaceholderPreferenceController extends AbstractPreferenceController 34 implements PreferenceControllerMixin { 35 36 private static final String KEY_PLACEHOLDER = "dashboard_tile_placeholder"; 37 38 private int mOrder = Preference.DEFAULT_ORDER; 39 DashboardTilePlaceholderPreferenceController(Context context)40 public DashboardTilePlaceholderPreferenceController(Context context) { 41 super(context); 42 } 43 44 @Override displayPreference(PreferenceScreen screen)45 public void displayPreference(PreferenceScreen screen) { 46 final Preference pref = screen.findPreference(getPreferenceKey()); 47 if (pref != null) { 48 mOrder = pref.getOrder(); 49 screen.removePreference(pref); 50 } 51 } 52 53 @Override isAvailable()54 public boolean isAvailable() { 55 return false; 56 } 57 58 @Override getPreferenceKey()59 public String getPreferenceKey() { 60 return KEY_PLACEHOLDER; 61 } 62 getOrder()63 public int getOrder() { 64 return mOrder; 65 } 66 } 67