android - How to check whether Android device supports OTG features programatically

Question

I want to check whether a device supports OTG features programatically . I have tried a lot about this in Internet but could not find any thing .

How can I do that ?

Answer 1

thnx to @CommonsWare：如何检测 Android 是否完全支持 USB？

确定设备是否具有 USB 主机功能的官方方法是使用相关的系统功能。

理想情况下，<uses-feature>向您的清单添加一个元素，表明您对该android.hardware.usb.host功能感兴趣。

或使用PackageManager.hasSystemFeature(), and FEATURE_USB_HOST.

FEATURE_USB_HOST被定义为与您在 in 中使用的字符串相同的字符串<uses-feature> (android.hardware.usb.host)。

用暗语：

context.getPackageManager().hasSystemFeature(PackageManager.FEATURE_USB_HOST);