1 2 Android BasicMultitouch Sample 3 =================================== 4 5 Sample demonstrates the use of [MotionEvent][1] properties to keep track of 6 individual touches across multiple touch events. 7 8 [1]: http://developer.android.com/reference/android/view/MotionEvent.html 9 10 Introduction 11 ------------ 12 13 This is an example of keeping track of individual touches across multiple 14 [MotionEvent][1]s. 15 16 This sample uses a custom View (`TouchDisplayView`) that responds to 17 touch events and draws a colored circle for each touch point. The view holds 18 data related to a touch pointer, including its current position, pressure, 19 and its past touch history. 20 21 The View draws graphics based on data associated with each touch event to a 22 canvas. A large circle indicates the current position of a touch, while smaller 23 trailing circles represent previous positions for that touch. 24 The size of the large circle is scaled depending on the pressure of the user's 25 touch. 26 27 [1]: http://developer.android.com/reference/android/view/MotionEvent.html 28 29 Pre-requisites 30 -------------- 31 32 - Android SDK v23 33 - Android Build Tools v23.0.0 34 - Android Support Repository 35 36 Screenshots 37 ------------- 38 39 <img src="screenshots/intro.png" height="400" alt="Screenshot"/> <img src="screenshots/touches.png" height="400" alt="Screenshot"/> 40 41 Getting Started 42 --------------- 43 44 This sample uses the Gradle build system. To build this project, use the 45 "gradlew build" command or use "Import Project" in Android Studio. 46 47 Support 48 ------- 49 50 - Google+ Community: https://plus.google.com/communities/105153134372062985968 51 - Stack Overflow: http://stackoverflow.com/questions/tagged/android 52 53 If you've found an error in this sample, please file an issue: 54 https://github.com/googlesamples/android-BasicMultitouch 55 56 Patches are encouraged, and may be submitted by forking this project and 57 submitting a pull request through GitHub. Please see CONTRIBUTING.md for more details. 58 59 License 60 ------- 61 62 Copyright 2014 The Android Open Source Project, Inc. 63 64 Licensed to the Apache Software Foundation (ASF) under one or more contributor 65 license agreements. See the NOTICE file distributed with this work for 66 additional information regarding copyright ownership. The ASF licenses this 67 file to you under the Apache License, Version 2.0 (the "License"); you may not 68 use this file except in compliance with the License. You may obtain a copy of 69 the License at 70 71 http://www.apache.org/licenses/LICENSE-2.0 72 73 Unless required by applicable law or agreed to in writing, software 74 distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 75 WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 76 License for the specific language governing permissions and limitations under 77 the License. 78
