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 import android.support.v7.preference.Preference; 21 import android.support.v7.preference.PreferenceScreen; 22 23 import com.android.settings.core.PreferenceController; 24 25 /** 26 * PreferenceController for a dashboard_tile_placeholder, a special preference marking where 27 * dynamic dashboard tiles should be injected in a screen. It is optional when building 28 * preference screen in xml. If not present, all dynamic dashboard tiles will be added to the 29 * bottom of page. 30 */ 31 class DashboardTilePlaceholderPreferenceController extends PreferenceController { 32 33 private static final String KEY_PLACEHOLDER = "dashboard_tile_placeholder"; 34 35 private int mOrder = Preference.DEFAULT_ORDER; 36 DashboardTilePlaceholderPreferenceController(Context context)37 public DashboardTilePlaceholderPreferenceController(Context context) { 38 super(context); 39 } 40 41 @Override displayPreference(PreferenceScreen screen)42 public void displayPreference(PreferenceScreen screen) { 43 final Preference pref = screen.findPreference(getPreferenceKey()); 44 if (pref != null) { 45 mOrder = pref.getOrder(); 46 screen.removePreference(pref); 47 } 48 } 49 50 @Override isAvailable()51 public boolean isAvailable() { 52 return false; 53 } 54 55 @Override getPreferenceKey()56 public String getPreferenceKey() { 57 return KEY_PLACEHOLDER; 58 } 59 getOrder()60 public int getOrder() { 61 return mOrder; 62 } 63 } 64