1 /* 2 * Copyright (C) 2013 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.incallui; 18 19 /** 20 * Base class for Presenters. 21 */ 22 public abstract class Presenter<U extends Ui> { 23 24 private U mUi; 25 26 /** 27 * Called after the UI view has been created. That is when fragment.onViewCreated() is called. 28 * 29 * @param ui The Ui implementation that is now ready to be used. 30 */ 31 public void onUiReady(U ui) { 32 mUi = ui; 33 } 34 35 /** 36 * Called when the UI view is destroyed in Fragment.onDestroyView(). 37 */ 38 public final void onUiDestroy(U ui) { 39 onUiUnready(ui); 40 mUi = null; 41 } 42 43 /** 44 * To be overriden by Presenter implementations. Called when the fragment is being 45 * destroyed but before ui is set to null. 46 */ 47 public void onUiUnready(U ui) { 48 } 49 50 public U getUi() { 51 return mUi; 52 } 53 } 54
