| /* |
| * Copyright (C) 2013 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.example.android.basictransition; |
| |
| import android.os.Bundle; |
| import android.support.v4.app.Fragment; |
| import android.transition.Scene; |
| import android.transition.TransitionInflater; |
| import android.transition.TransitionManager; |
| import android.view.LayoutInflater; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.widget.RadioGroup; |
| |
| public class BasicTransitionFragment extends Fragment |
| implements RadioGroup.OnCheckedChangeListener { |
| |
| // We transition between these Scenes |
| private Scene mScene1; |
| private Scene mScene2; |
| private Scene mScene3; |
| |
| /** A custom TransitionManager */ |
| private TransitionManager mTransitionManagerForScene3; |
| |
| /** Transitions take place in this ViewGroup. We retain this for the dynamic transition on scene 4. */ |
| private ViewGroup mSceneRoot; |
| |
| public static BasicTransitionFragment newInstance() { |
| return new BasicTransitionFragment(); |
| } |
| |
| public BasicTransitionFragment() { |
| } |
| |
| @Override |
| public View onCreateView(LayoutInflater inflater, ViewGroup container, |
| Bundle savedInstanceState) { |
| View view = inflater.inflate(R.layout.fragment_basic_transition, container, false); |
| assert view != null; |
| RadioGroup radioGroup = (RadioGroup) view.findViewById(R.id.select_scene); |
| radioGroup.setOnCheckedChangeListener(this); |
| mSceneRoot = (ViewGroup) view.findViewById(R.id.scene_root); |
| |
| // BEGIN_INCLUDE(instantiation_from_view) |
| // A Scene can be instantiated from a live view hierarchy. |
| mScene1 = new Scene(mSceneRoot, (ViewGroup) mSceneRoot.findViewById(R.id.container)); |
| // END_INCLUDE(instantiation_from_view) |
| |
| // BEGIN_INCLUDE(instantiation_from_resource) |
| // You can also inflate a generate a Scene from a layout resource file. |
| mScene2 = Scene.getSceneForLayout(mSceneRoot, R.layout.scene2, getActivity()); |
| // END_INCLUDE(instantiation_from_resource) |
| |
| // Another scene from a layout resource file. |
| mScene3 = Scene.getSceneForLayout(mSceneRoot, R.layout.scene3, getActivity()); |
| |
| // BEGIN_INCLUDE(custom_transition_manager) |
| // We create a custom TransitionManager for Scene 3, in which ChangeBounds and Fade |
| // take place at the same time. |
| mTransitionManagerForScene3 = TransitionInflater.from(getActivity()) |
| .inflateTransitionManager(R.transition.scene3_transition_manager, mSceneRoot); |
| // END_INCLUDE(custom_transition_manager) |
| |
| return view; |
| } |
| |
| @Override |
| public void onCheckedChanged(RadioGroup group, int checkedId) { |
| switch (checkedId) { |
| case R.id.select_scene_1: { |
| // BEGIN_INCLUDE(transition_simple) |
| // You can start an automatic transition with TransitionManager.go(). |
| TransitionManager.go(mScene1); |
| // END_INCLUDE(transition_simple) |
| break; |
| } |
| case R.id.select_scene_2: { |
| TransitionManager.go(mScene2); |
| break; |
| } |
| case R.id.select_scene_3: { |
| // BEGIN_INCLUDE(transition_custom) |
| // You can also start a transition with a custom TransitionManager. |
| mTransitionManagerForScene3.transitionTo(mScene3); |
| // END_INCLUDE(transition_custom) |
| break; |
| } |
| case R.id.select_scene_4: { |
| // BEGIN_INCLUDE(transition_dynamic) |
| // Alternatively, transition can be invoked dynamically without a Scene. |
| // For this, we first call TransitionManager.beginDelayedTransition(). |
| TransitionManager.beginDelayedTransition(mSceneRoot); |
| // Then, we can just change view properties as usual. |
| View square = mSceneRoot.findViewById(R.id.transition_square); |
| ViewGroup.LayoutParams params = square.getLayoutParams(); |
| int newSize = getResources().getDimensionPixelSize(R.dimen.square_size_expanded); |
| params.width = newSize; |
| params.height = newSize; |
| square.setLayoutParams(params); |
| // END_INCLUDE(transition_dynamic) |
| break; |
| } |
| } |
| } |
| |
| } |