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.app.Activity; 20 import android.app.Fragment; 21 import android.os.Bundle; 22 23 /** 24 * Parent for all fragments that use Presenters and Ui design. 25 */ 26 public abstract class BaseFragment<T extends Presenter<U>, U extends Ui> extends Fragment { 27 28 private static final String KEY_FRAGMENT_HIDDEN = "key_fragment_hidden"; 29 30 private T mPresenter; 31 createPresenter()32 public abstract T createPresenter(); 33 getUi()34 public abstract U getUi(); 35 BaseFragment()36 protected BaseFragment() { 37 mPresenter = createPresenter(); 38 } 39 40 /** 41 * Presenter will be available after onActivityCreated(). 42 * 43 * @return The presenter associated with this fragment. 44 */ getPresenter()45 public T getPresenter() { 46 return mPresenter; 47 } 48 49 @Override onActivityCreated(Bundle savedInstanceState)50 public void onActivityCreated(Bundle savedInstanceState) { 51 super.onActivityCreated(savedInstanceState); 52 mPresenter.onUiReady(getUi()); 53 } 54 55 @Override onCreate(Bundle savedInstanceState)56 public void onCreate(Bundle savedInstanceState) { 57 super.onCreate(savedInstanceState); 58 if (savedInstanceState != null) { 59 mPresenter.onRestoreInstanceState(savedInstanceState); 60 if (savedInstanceState.getBoolean(KEY_FRAGMENT_HIDDEN)) { 61 getFragmentManager().beginTransaction().hide(this).commit(); 62 } 63 } 64 } 65 66 @Override onDestroyView()67 public void onDestroyView() { 68 super.onDestroyView(); 69 mPresenter.onUiDestroy(getUi()); 70 } 71 72 @Override onSaveInstanceState(Bundle outState)73 public void onSaveInstanceState(Bundle outState) { 74 super.onSaveInstanceState(outState); 75 mPresenter.onSaveInstanceState(outState); 76 outState.putBoolean(KEY_FRAGMENT_HIDDEN, isHidden()); 77 } 78 79 @Override onAttach(Activity activity)80 public void onAttach(Activity activity) { 81 super.onAttach(activity); 82 ((FragmentDisplayManager) activity).onFragmentAttached(this); 83 } 84 } 85