1 Android BasicMultitouch Sample 2 =================================== 3 4 Sample demonstrates the use of [MotionEvent][1] properties to keep track of 5 individual touches across multiple touch events. 6 7 [1]: http://developer.android.com/reference/android/view/MotionEvent.html 8 9 Introduction 10 ------------ 11 12 This is an example of keeping track of individual touches across multiple 13 [MotionEvent][1]s. 14 15 This sample uses a custom View (`TouchDisplayView`) that responds to 16 touch events and draws a colored circle for each touch point. The view holds 17 data related to a touch pointer, including its current position, pressure, 18 and its past touch history. 19 20 The View draws graphics based on data associated with each touch event to a 21 canvas. A large circle indicates the current position of a touch, while smaller 22 trailing circles represent previous positions for that touch. 23 The size of the large circle is scaled depending on the pressure of the user's 24 touch. 25 26 [1]: http://developer.android.com/reference/android/view/MotionEvent.html 27 28 Pre-requisites 29 -------------- 30 31 - Android SDK v21 32 - Android Build Tools v21.1.1 33 - Android Support Repository 34 35 Screenshots 36 ------------- 37 38 <img src="screenshots/intro.png" height="400" alt="Screenshot"/> <img src="screenshots/touches.png" height="400" alt="Screenshot"/> 39 40 Getting Started 41 --------------- 42 43 This sample uses the Gradle build system. To build this project, use the 44 "gradlew build" command or use "Import Project" in Android Studio. 45 46 Support 47 ------- 48 49 - Google+ Community: https://plus.google.com/communities/105153134372062985968 50 - Stack Overflow: http://stackoverflow.com/questions/tagged/android 51 52 If you've found an error in this sample, please file an issue: 53 https://github.com/googlesamples/android-BasicMultitouch 54 55 Patches are encouraged, and may be submitted by forking this project and 56 submitting a pull request through GitHub. Please see CONTRIBUTING.md for more details. 57 58 License 59 ------- 60 61 Copyright 2014 The Android Open Source Project, Inc. 62 63 Licensed to the Apache Software Foundation (ASF) under one or more contributor 64 license agreements. See the NOTICE file distributed with this work for 65 additional information regarding copyright ownership. The ASF licenses this 66 file to you under the Apache License, Version 2.0 (the "License"); you may not 67 use this file except in compliance with the License. You may obtain a copy of 68 the License at 69 70 http://www.apache.org/licenses/LICENSE-2.0 71 72 Unless required by applicable law or agreed to in writing, software 73 distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 74 WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 75 License for the specific language governing permissions and limitations under 76 the License. 77
