Alexander Lucas | 97842ff | 2014-03-07 14:56:55 -0800 | [diff] [blame^] | 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.example.android.basictransition; |
| 18 | |
| 19 | import android.os.Bundle; |
| 20 | import android.support.v4.app.Fragment; |
| 21 | import android.transition.Scene; |
| 22 | import android.transition.TransitionInflater; |
| 23 | import android.transition.TransitionManager; |
| 24 | import android.view.LayoutInflater; |
| 25 | import android.view.View; |
| 26 | import android.view.ViewGroup; |
| 27 | import android.widget.RadioGroup; |
| 28 | |
| 29 | public class BasicTransitionFragment extends Fragment |
| 30 | implements RadioGroup.OnCheckedChangeListener { |
| 31 | |
| 32 | // We transition between these Scenes |
| 33 | private Scene mScene1; |
| 34 | private Scene mScene2; |
| 35 | private Scene mScene3; |
| 36 | |
| 37 | /** A custom TransitionManager */ |
| 38 | private TransitionManager mTransitionManagerForScene3; |
| 39 | |
| 40 | /** Transitions take place in this ViewGroup. We retain this for the dynamic transition on scene 4. */ |
| 41 | private ViewGroup mSceneRoot; |
| 42 | |
| 43 | public static BasicTransitionFragment newInstance() { |
| 44 | return new BasicTransitionFragment(); |
| 45 | } |
| 46 | |
| 47 | public BasicTransitionFragment() { |
| 48 | } |
| 49 | |
| 50 | @Override |
| 51 | public View onCreateView(LayoutInflater inflater, ViewGroup container, |
| 52 | Bundle savedInstanceState) { |
| 53 | View view = inflater.inflate(R.layout.fragment_basic_transition, container, false); |
| 54 | assert view != null; |
| 55 | RadioGroup radioGroup = (RadioGroup) view.findViewById(R.id.select_scene); |
| 56 | radioGroup.setOnCheckedChangeListener(this); |
| 57 | mSceneRoot = (ViewGroup) view.findViewById(R.id.scene_root); |
| 58 | |
| 59 | // BEGIN_INCLUDE(instantiation_from_view) |
| 60 | // A Scene can be instantiated from a live view hierarchy. |
| 61 | mScene1 = new Scene(mSceneRoot, (ViewGroup) mSceneRoot.findViewById(R.id.container)); |
| 62 | // END_INCLUDE(instantiation_from_view) |
| 63 | |
| 64 | // BEGIN_INCLUDE(instantiation_from_resource) |
| 65 | // You can also inflate a generate a Scene from a layout resource file. |
| 66 | mScene2 = Scene.getSceneForLayout(mSceneRoot, R.layout.scene2, getActivity()); |
| 67 | // END_INCLUDE(instantiation_from_resource) |
| 68 | |
| 69 | // Another scene from a layout resource file. |
| 70 | mScene3 = Scene.getSceneForLayout(mSceneRoot, R.layout.scene3, getActivity()); |
| 71 | |
| 72 | // BEGIN_INCLUDE(custom_transition_manager) |
| 73 | // We create a custom TransitionManager for Scene 3, in which ChangeBounds and Fade |
| 74 | // take place at the same time. |
| 75 | mTransitionManagerForScene3 = TransitionInflater.from(getActivity()) |
| 76 | .inflateTransitionManager(R.transition.scene3_transition_manager, mSceneRoot); |
| 77 | // END_INCLUDE(custom_transition_manager) |
| 78 | |
| 79 | return view; |
| 80 | } |
| 81 | |
| 82 | @Override |
| 83 | public void onCheckedChanged(RadioGroup group, int checkedId) { |
| 84 | switch (checkedId) { |
| 85 | case R.id.select_scene_1: { |
| 86 | // BEGIN_INCLUDE(transition_simple) |
| 87 | // You can start an automatic transition with TransitionManager.go(). |
| 88 | TransitionManager.go(mScene1); |
| 89 | // END_INCLUDE(transition_simple) |
| 90 | break; |
| 91 | } |
| 92 | case R.id.select_scene_2: { |
| 93 | TransitionManager.go(mScene2); |
| 94 | break; |
| 95 | } |
| 96 | case R.id.select_scene_3: { |
| 97 | // BEGIN_INCLUDE(transition_custom) |
| 98 | // You can also start a transition with a custom TransitionManager. |
| 99 | mTransitionManagerForScene3.transitionTo(mScene3); |
| 100 | // END_INCLUDE(transition_custom) |
| 101 | break; |
| 102 | } |
| 103 | case R.id.select_scene_4: { |
| 104 | // BEGIN_INCLUDE(transition_dynamic) |
| 105 | // Alternatively, transition can be invoked dynamically without a Scene. |
| 106 | // For this, we first call TransitionManager.beginDelayedTransition(). |
| 107 | TransitionManager.beginDelayedTransition(mSceneRoot); |
| 108 | // Then, we can just change view properties as usual. |
| 109 | View square = mSceneRoot.findViewById(R.id.transition_square); |
| 110 | ViewGroup.LayoutParams params = square.getLayoutParams(); |
| 111 | int newSize = getResources().getDimensionPixelSize(R.dimen.square_size_expanded); |
| 112 | params.width = newSize; |
| 113 | params.height = newSize; |
| 114 | square.setLayoutParams(params); |
| 115 | // END_INCLUDE(transition_dynamic) |
| 116 | break; |
| 117 | } |
| 118 | } |
| 119 | } |
| 120 | |
| 121 | } |