| <?xml version="1.0" encoding="UTF-8"?> |
| <!-- |
| Copyright 2013 The Android Open Source Project |
| |
| Licensed under the Apache License, Version 2.0 (the "License"); |
| you may not use this file except in compliance with the License. |
| You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. |
| --> |
| <sample> |
| <name>BasicMultitouch</name> |
| <group>Input</group> |
| <package>com.example.android.basicmultitouch</package> |
| |
| |
| |
| <!-- change minSdk if needed--> |
| <minSdk>14</minSdk> |
| |
| |
| <strings> |
| <intro> |
| <![CDATA[ |
| This sample demonstrates the use of MotionEvent properties to keep track of individual touches |
| across multiple touch events. |
| \n\nTouch the screen with multiple fingers to show that the pointer id |
| (also represented by a color) does not change as new touch events are received. |
| ]]> |
| </intro> |
| </strings> |
| |
| <template src="base"/> |
| <common src="logger"/> |
| <metadata> |
| <status>PUBLISHED</status> |
| <categories>UI, Views, Input</categories> |
| <technologies>Android</technologies> |
| <languages>Java</languages> |
| <solutions>Mobile</solutions> |
| <level>INTERMEDIATE</level> |
| <icon>screenshots/icon-web.png</icon> |
| <screenshots> |
| <img>screenshots/intro.png</img> |
| <img>screenshots/touches.png</img> |
| </screenshots> |
| <api_refs> |
| <android>android.view.MotionEvent</android> |
| </api_refs> |
| <description> |
| <![CDATA[ |
| Sample demonstrates the use of [MotionEvent][1] properties to keep track of |
| individual touches across multiple touch events. |
| |
| [1]: http://developer.android.com/reference/android/view/MotionEvent.html |
| ]]> |
| </description> |
| |
| <intro> |
| <![CDATA[ |
| This is an example of keeping track of individual touches across multiple |
| [MotionEvent][1]s. |
| |
| This sample uses a custom View (`TouchDisplayView`) that responds to |
| touch events and draws a colored circle for each touch point. The view holds |
| data related to a touch pointer, including its current position, pressure, |
| and its past touch history. |
| |
| The View draws graphics based on data associated with each touch event to a |
| canvas. A large circle indicates the current position of a touch, while smaller |
| trailing circles represent previous positions for that touch. |
| The size of the large circle is scaled depending on the pressure of the user's |
| touch. |
| |
| [1]: http://developer.android.com/reference/android/view/MotionEvent.html |
| ]]> |
| </intro> |
| </metadata> |
| </sample> |