How to detect if an sdcard or mount point will mount as removable storage or MTP?

Question

当android手机通过USB电缆连接到计算机时，它可能会作为可移动存储安装，但某些手机可能会将其作为mtp（媒体传输协议）安装，是否有一种方法可以在android中检测到sdcard是否将其安装为可移动或mtp ？

Answer 1

You can use

Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED); 

to see if the external storage is mounted and you can use

Environment.getExternalStorageState().equals(Environment.MEDIA_REMOVED);

to see if it is removed completely. You will find all the different cases you need in the Environment class.