README.md
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 24
33 - Android Build Tools v24.0.1
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 2016 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