guodashen007的博客

重启adb

1.添加权限<uses-feature android:name="android.hardware.usb.host" /><meta-data android:name="android.hardware.usb.action.USB_DEVICE_ATTACHED"/>2在activity中 private UsbManager mUsbManager = null; private UsbDevice device = null; private

USB 扫码枪会将扫描出来的内容转化为键盘事件，对应的就是Android中的KeyEvent事件，所以我们只需要在我们的activity中重写dispatchKeyEvent方法 private StringBuilder sb = new StringBuilder(); private Handler myHandler = new Handler(); boolean isScaning = false; int len = 0; int oldLen = 0