
public final class USBMonitor

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`public interface`	`USBMonitor.OnDeviceConnectListener`	Callback listener for connect USB device
`public class`	`USBMonitor.UsbDeviceInfo`
`public class`	`USBMonitor.UsbControlBlock`	control classnever reuse the instance when it closed
`public class`	`USBMonitor.USBException`

Field Summary

Fields
Modifier and Type	Field	Description
`public static int`	`USB_OPEN_ERROR_UNKNOWN`
`public final static String`	`ACTION_USB_DEVICE_ATTACHED`

Constructor Summary

Constructors
Constructor	Description
`USBMonitor(Context context, USBMonitor.OnDeviceConnectListener listener, Handler handler)`
`USBMonitor(Context context, USBMonitor.OnDeviceConnectListener listener)`

Method Summary

Modifier and Type	Method	Description
`void`	`destroy()`	Release all related resources,never reuse again
`synchronized void`	`register()`	register BroadcastReceiver to monitor USB events
`synchronized void`	`unregister()`	unregister BroadcastReceiver
`synchronized boolean`	`isRegistered()`
`void`	`setDeviceFilter(DeviceFilter filter)`	set device filter
`void`	`addDeviceFilter(DeviceFilter filter)`	add device filter
`void`	`removeDeviceFilter(DeviceFilter filter)`	remove device filter
`void`	`setDeviceFilter(List<DeviceFilter> filters)`	set device filters
`void`	`addDeviceFilter(List<DeviceFilter> filters)`	add device filters
`void`	`removeDeviceFilter(List<DeviceFilter> filters)`	remove device filters
`boolean`	`isAvailableDevice(UsbDevice device)`
`int`	`getDeviceCount()`	return the number of connected USB devices that matched device filter
`List<UsbDevice>`	`getDeviceList()`	return device list, return empty list if no device matched
`List<UsbDevice>`	`getDeviceList(List<DeviceFilter> filters)`	return device list, return empty list if no device matched
`List<UsbDevice>`	`getDeviceList(DeviceFilter filter)`	return device list, return empty list if no device matched
`Iterator<UsbDevice>`	`getDevices()`	get USB device list, without filter
`final void`	`dumpDevices()`	output device list to LogCat
`boolean`	`hasPermission(UsbDevice device)`	return whether the specific Usb device has permission
`void`	`requestPermission(UsbDevice device)`	request permission to access to USB device
`static String`	`getDeviceKey(UsbDevice device)`	generate device key for each UsbDevice.
`static String`	`getProductKey(UsbDevice device)`
`USBMonitor.UsbDeviceInfo`	`getDeviceInfo(UsbDevice device)`	get device info that contains ManufacturerName, ProductName, Version and SerialNumber
`static USBMonitor.UsbDeviceInfo`	`getDeviceInfo(Context context, UsbDevice device)`	get device info that contains ManufacturerName, ProductName, Version and SerialNumber
`static USBMonitor.UsbDeviceInfo`	`updateDeviceInfo(UsbManager manager, UsbDevice device, USBMonitor.UsbDeviceInfo _info)`	update device info that contains ManufacturerName, ProductName, Version and SerialNumber

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - USBMonitor
```
USBMonitor(Context context, USBMonitor.OnDeviceConnectListener listener, Handler handler)
```
  - USBMonitor
```
USBMonitor(Context context, USBMonitor.OnDeviceConnectListener listener)
```
- Method Detail
  - destroy
```
 void destroy()
```
    Release all related resources,never reuse again
  - register
```
 synchronized void register()
```
    register BroadcastReceiver to monitor USB events
  - unregister
```
 synchronized void unregister()
```
    unregister BroadcastReceiver
  - isRegistered
```
 synchronized boolean isRegistered()
```
  - setDeviceFilter
```
 void setDeviceFilter(DeviceFilter filter)
```
    set device filter
  - addDeviceFilter
```
 void addDeviceFilter(DeviceFilter filter)
```
    add device filter
  - removeDeviceFilter
```
 void removeDeviceFilter(DeviceFilter filter)
```
    remove device filter
  - setDeviceFilter
```
 void setDeviceFilter(List<DeviceFilter> filters)
```
    set device filters
  - addDeviceFilter
```
 void addDeviceFilter(List<DeviceFilter> filters)
```
    add device filters
  - removeDeviceFilter
```
 void removeDeviceFilter(List<DeviceFilter> filters)
```
    remove device filters
  - isAvailableDevice
```
 boolean isAvailableDevice(UsbDevice device)
```
  - getDeviceCount
```
 int getDeviceCount()
```
    return the number of connected USB devices that matched device filter
  - getDeviceList
```
 List<UsbDevice> getDeviceList()
```
    return device list, return empty list if no device matched
  - getDeviceList
```
 List<UsbDevice> getDeviceList(List<DeviceFilter> filters)
```
    return device list, return empty list if no device matched
  - getDeviceList
```
 List<UsbDevice> getDeviceList(DeviceFilter filter)
```
    return device list, return empty list if no device matched
  - getDevices
```
 Iterator<UsbDevice> getDevices()
```
    get USB device list, without filter
  - dumpDevices
```
 final void dumpDevices()
```
    output device list to LogCat
  - hasPermission
```
 boolean hasPermission(UsbDevice device)
```
    return whether the specific Usb device has permission
  - requestPermission
```
 void requestPermission(UsbDevice device)
```
    request permission to access to USB device
  - getDeviceKey
```
 static String getDeviceKey(UsbDevice device)
```
    generate device key for each UsbDevice. Returns an empty string if device is nulluse manufacture name, version, and configuration count if the API >= LOLLIPOP
  - getProductKey
```
 static String getProductKey(UsbDevice device)
```
  - getDeviceInfo
```
 USBMonitor.UsbDeviceInfo getDeviceInfo(UsbDevice device)
```
    get device info that contains ManufacturerName, ProductName, Version and SerialNumber
  - getDeviceInfo
```
 static USBMonitor.UsbDeviceInfo getDeviceInfo(Context context, UsbDevice device)
```
    get device info that contains ManufacturerName, ProductName, Version and SerialNumber
  - updateDeviceInfo
```
 static USBMonitor.UsbDeviceInfo updateDeviceInfo(UsbManager manager, UsbDevice device, USBMonitor.UsbDeviceInfo _info)
```
    update device info that contains ManufacturerName, ProductName, Version and SerialNumber

Class USBMonitor

Nested Class Summary

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

USBMonitor

USBMonitor

Method Detail

destroy

register

unregister

isRegistered

setDeviceFilter

addDeviceFilter

removeDeviceFilter

setDeviceFilter

addDeviceFilter

removeDeviceFilter

isAvailableDevice

getDeviceCount

getDeviceList

getDeviceList

getDeviceList

getDevices

dumpDevices

hasPermission

requestPermission

getDeviceKey

getProductKey

getDeviceInfo

getDeviceInfo

updateDeviceInfo