After copying files to the USB disk, if you force the USB disk to be removed, a 0 byte file will be produced. So you want to pop up the USB disk by programming. Here is the source code found on the Internet. I don't know how to convert it to ba4
Hello, Erel
I'm not familiar with Java. I tried to embed Java, but I didn't define imountservice and servicemanager. I tried to use import android.os.ServiceManager; But it still can't be edited