Draw on your device screen using your finger.
This app uses a custom view to implement drawing on a canvas in response to touch events. All drawing happens on the UI thread by overriding the custom view's onDraw() method. You can use this technique when drawing always takes less time than a screen refresh cycle on all target devices.
You need to know:
- How to open, build, and run apps with Android Studio.
- How to extract string resources and use string resources in the code.
- How to create a custom view that handles touch or click events.
- Basic understanding of the activity lifecycle.
- Download and run the app.
Copyright 2017 Google, Inc.
Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to you 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.