Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
921 views
in Technique[技术] by (71.8m points)

android - Getting the number of touch points supported

I know that the number of touch points supported is different from device to device, but is there a way through the API or through code to get that number for the device?

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Answer

0 votes
by (71.8m points)

You can distinguish between various broad classes of multitouch (none, pinch gestures only, true 2-point multitouch, true 5-point multitouch) by searching the result of PackageManager#getSystemAvailableFeatures() for the various "android.hardware.touchscreen.*" features listed here.

If you want to know exactly how many touches may be present, you'll just have to watch MotionEvents as they come in.


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...