谷歌Just a Line安卓版是谷歌最新推出的一款AR 应用，建立在谷歌的 ARCore 技术之上。你可以利用 AR 技术进行简单的绘画，然后用一个简短的视频分享你的创作。
Just a Line is an AR Experiment that lets you make simple drawings in augmented reality, then share your creation with a short video. Touch the screen to draw, then hit record and share what you make with #justaline. Just a Line works on any device that supports ARCore.
This is an AR Experiment. To learn more, visit g.co/ARExperiments.
You can also find the open source code for this project at https://github.com/googlecreativelab/ar-drawing-java.
Camera: Needed to let you draw in AR and record videos.
Microphone: Needed to let you record videos of drawings you make.
Photos/Media/Files: Needed to let you save videos of drawings on your device.