1 2 Android CustomTransition Sample 3 =================================== 4 5 This sample shows how to implement a custom Transition extending the 6 standard Transition class. 7 8 Introduction 9 ------------ 10 11 In order to create a custom Transition, you first need to override 12 [captureStartValues][1] and [captureEndValues][2]. In those method, you have to 13 extract all the relevant properties from a View. These methods are called for 14 each of the Views in the hierarchy. 15 16 Then, you need to override [createAnimator][3] and create an Animator based on 17 the property values you extracted. This method will also be called for each of 18 the Views in the hierarchy. If you want to skip some Views, simply return null. 19 20 The instantiated custom Transition can be applied by passing it as the second 21 parameter of [TransitionManager.go][4]. 22 23 ```java 24 TransitionManager.go(mScenes[mCurrentScene], mTransition); 25 ``` 26 27 [1]: https://developer.android.com/reference/android/transition/Transition.html#captureStartValues(android.transition.TransitionValues) 28 [2]: https://developer.android.com/reference/android/transition/Transition.html#captureEndValues(android.transition.TransitionValues) 29 [3]: https://developer.android.com/reference/android/transition/Transition.html#createAnimator(android.view.ViewGroup, android.transition.TransitionValues, android.transition.TransitionValues) 30 [4]: https://developer.android.com/reference/android/transition/TransitionManager.html#go(android.transition.Scene, android.transition.Transition) 31 32 Pre-requisites 33 -------------- 34 35 - Android SDK 24 36 - Android Build Tools v24.0.1 37 - Android Support Repository 38 39 Screenshots 40 ------------- 41 42 <img src="screenshots/main.png" height="400" alt="Screenshot"/> 43 44 Getting Started 45 --------------- 46 47 This sample uses the Gradle build system. To build this project, use the 48 "gradlew build" command or use "Import Project" in Android Studio. 49 50 Support 51 ------- 52 53 - Google+ Community: https://plus.google.com/communities/105153134372062985968 54 - Stack Overflow: http://stackoverflow.com/questions/tagged/android 55 56 If you've found an error in this sample, please file an issue: 57 https://github.com/googlesamples/android-CustomTransition 58 59 Patches are encouraged, and may be submitted by forking this project and 60 submitting a pull request through GitHub. Please see CONTRIBUTING.md for more details. 61 62 License 63 ------- 64 65 Copyright 2016 The Android Open Source Project, Inc. 66 67 Licensed to the Apache Software Foundation (ASF) under one or more contributor 68 license agreements. See the NOTICE file distributed with this work for 69 additional information regarding copyright ownership. The ASF licenses this 70 file to you under the Apache License, Version 2.0 (the "License"); you may not 71 use this file except in compliance with the License. You may obtain a copy of 72 the License at 73 74 http://www.apache.org/licenses/LICENSE-2.0 75 76 Unless required by applicable law or agreed to in writing, software 77 distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 78 WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 79 License for the specific language governing permissions and limitations under 80 the License. 81
