1 Android CustomTransition Sample 2 =================================== 3 4 This sample shows how to implement a custom Transition extending the 5 standard Transition class. 6 7 Introduction 8 ------------ 9 10 In order to create a custom Transition, you first need to override 11 [captureStartValues][1] and [captureEndValues][2]. In those method, you have to 12 extract all the relevant properties from a View. These methods are called for 13 each of the Views in the hierarchy. 14 15 Then, you need to override [createAnimator][3] and create an Animator based on 16 the property values you extracted. This method will also be called for each of 17 the Views in the hierarchy. If you want to skip some Views, simply return null. 18 19 The instantiated custom Transition can be applied by passing it as the second 20 parameter of [TransitionManager.go][4]. 21 22 ```java 23 TransitionManager.go(mScenes[mCurrentScene], mTransition); 24 ``` 25 26 [1]: https://developer.android.com/reference/android/transition/Transition.html#captureStartValues(android.transition.TransitionValues) 27 [2]: https://developer.android.com/reference/android/transition/Transition.html#captureEndValues(android.transition.TransitionValues) 28 [3]: https://developer.android.com/reference/android/transition/Transition.html#createAnimator(android.view.ViewGroup, android.transition.TransitionValues, android.transition.TransitionValues) 29 [4]: https://developer.android.com/reference/android/transition/TransitionManager.html#go(android.transition.Scene, android.transition.Transition) 30 31 Pre-requisites 32 -------------- 33 34 - Android SDK v21 35 - Android Build Tools v21.1.1 36 - Android Support Repository 37 38 Screenshots 39 ------------- 40 41 <img src="screenshots/main.png" height="400" alt="Screenshot"/> 42 43 Getting Started 44 --------------- 45 46 This sample uses the Gradle build system. To build this project, use the 47 "gradlew build" command or use "Import Project" in Android Studio. 48 49 Support 50 ------- 51 52 - Google+ Community: https://plus.google.com/communities/105153134372062985968 53 - Stack Overflow: http://stackoverflow.com/questions/tagged/android 54 55 If you've found an error in this sample, please file an issue: 56 https://github.com/googlesamples/android-CustomTransition 57 58 Patches are encouraged, and may be submitted by forking this project and 59 submitting a pull request through GitHub. Please see CONTRIBUTING.md for more details. 60 61 License 62 ------- 63 64 Copyright 2014 The Android Open Source Project, Inc. 65 66 Licensed to the Apache Software Foundation (ASF) under one or more contributor 67 license agreements. See the NOTICE file distributed with this work for 68 additional information regarding copyright ownership. The ASF licenses this 69 file to you under the Apache License, Version 2.0 (the "License"); you may not 70 use this file except in compliance with the License. You may obtain a copy of 71 the License at 72 73 http://www.apache.org/licenses/LICENSE-2.0 74 75 Unless required by applicable law or agreed to in writing, software 76 distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 77 WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 78 License for the specific language governing permissions and limitations under 79 the License. 80
