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README.md

      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