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 import android.os.Bundle; 20 21 /** 22 * Base class for Presenters. 23 */ 24 public abstract class Presenter<U extends Ui> { 25 26 private U mUi; 27 28 /** 29 * Called after the UI view has been created. That is when fragment.onViewCreated() is called. 30 * 31 * @param ui The Ui implementation that is now ready to be used. 32 */ 33 public void onUiReady(U ui) { 34 mUi = ui; 35 } 36 37 /** 38 * Called when the UI view is destroyed in Fragment.onDestroyView(). 39 */ 40 public final void onUiDestroy(U ui) { 41 onUiUnready(ui); 42 mUi = null; 43 } 44 45 /** 46 * To be overriden by Presenter implementations. Called when the fragment is being 47 * destroyed but before ui is set to null. 48 */ 49 public void onUiUnready(U ui) { 50 } 51 52 public void onSaveInstanceState(Bundle outState) {} 53 54 public void onRestoreInstanceState(Bundle savedInstanceState) {} 55 56 public U getUi() { 57 return mUi; 58 } 59 } 60
