title: UDPSocket
sidebar_label: UDPSocket
An UDP Socket instance. Use IPv4 protocol by default.
Reference
Methods
close
Closes (Terminates) a UDP Socket instance. After closing, the UDP Socket instance can no longer send messages. Calling UDPSocket.send will trigger an error event, and the callback function for the message event will not be executed. After the UDPSocket instance is created, it will be strongly referenced by Native to ensure that it is not collected by GC. After calling UDPSocket.close, the strong reference to it will be removed, and the UDPSocket instance will follow the GC rules.
Reference
() => void
API Support
| API |
WeChat Mini-Program |
H5 |
React Native |
| UDPSocket.close |
✔️ |
|
offClose
Un-listens on the disabling event.
Reference
(callback: OffCloseCallback) => void
| Property |
Type |
Description |
| callback |
OffCloseCallback |
The callback function for the disabling event. |
API Support
| API |
WeChat Mini-Program |
H5 |
React Native |
| UDPSocket.offClose |
✔️ |
|
offError
Un-listens on the error event.
Reference
(callback: OffErrorCallback) => void
| Property |
Type |
Description |
| callback |
OffErrorCallback |
The callback function for the error event. |
API Support
| API |
WeChat Mini-Program |
H5 |
React Native |
| UDPSocket.offError |
✔️ |
|
offListening
Un-listens on the event of starting listening on data packet messages.
Reference
(callback: (res: CallbackResult) => void) => void
| Property |
Type |
Description |
| callback |
(res: CallbackResult) => void |
The callback function for the event of starting listening on data packet messages. |
API Support
| API |
WeChat Mini-Program |
H5 |
React Native |
| UDPSocket.offListening |
✔️ |
|
offMessage
Un-listens on the event of receiving messages.
Reference
(callback: (res: CallbackResult) => void) => void
| Property |
Type |
Description |
| callback |
(res: CallbackResult) => void |
The callback function for the event of receiving messages. |
API Support
| API |
WeChat Mini-Program |
H5 |
React Native |
| UDPSocket.offMessage |
✔️ |
|
onClose
Listens on the disabling event.
Reference
(callback: OnCloseCallback) => void
| Property |
Type |
Description |
| callback |
OnCloseCallback |
The callback function for the disabling event. |
API Support
| API |
WeChat Mini-Program |
H5 |
React Native |
| UDPSocket.onClose |
✔️ |
|
onError
Listens on the error event.
Reference
(callback: OnErrorCallback) => void
| Property |
Type |
Description |
| callback |
OnErrorCallback |
The callback function for the error event. |
API Support
| API |
WeChat Mini-Program |
H5 |
React Native |
| UDPSocket.onError |
✔️ |
|
onListening
Listens on the event of starting listening on data packet messages.
Reference
(callback: (res: CallbackResult) => void) => void
| Property |
Type |
Description |
| callback |
(res: CallbackResult) => void |
The callback function for the event of starting listening on data packet messages. |
API Support
| API |
WeChat Mini-Program |
H5 |
React Native |
| UDPSocket.onListening |
✔️ |
|
onMessage
Listens on the event of receiving messages.
Reference
(callback: OnMessageCallback) => void
| Property |
Type |
Description |
| callback |
OnMessageCallback |
The callback function for the event of receiving messages. |
API Support
| API |
WeChat Mini-Program |
H5 |
React Native |
| UDPSocket.onMessage |
✔️ |
|
send
Sends messages to the specified IP and port.
Reference
(option: SendOption) => void
| Property |
Type |
| option |
SendOption |
API Support
| API |
WeChat Mini-Program |
H5 |
React Native |
| UDPSocket.send |
✔️ |
|
bind
Binds an available port randomly assigned by the system.
Reference
(port: number) => number
| Property |
Type |
Description |
| port |
number |
Bound port number |
API Support
| API |
WeChat Mini-Program |
H5 |
React Native |
| UDPSocket.bind |
✔️ |
|
Parameters
OffCloseCallback
The callback function for the disabling event.
(res: CallbackResult) => void
| Property |
Type |
| res |
CallbackResult |
OffErrorCallback
The callback function for the error event.
(res: CallbackResult) => void
| Property |
Type |
| res |
CallbackResult |
OnCloseCallback
The callback function for the disabling event.
(res: CallbackResult) => void
| Property |
Type |
| res |
CallbackResult |
OnErrorCallback
The callback function for the error event.
(result: OnErrorCallbackResult) => void
| Property |
Type |
| result |
OnErrorCallbackResult |
OnMessageCallback
The callback function for the event of receiving messages.
(result: OnMessageCallbackResult) => void
| Property |
Type |
| result |
OnMessageCallbackResult |
OnErrorCallbackResult
| Property |
Type |
Description |
| errMsg |
string |
错误信息 |
OnMessageCallbackResult
| Property |
Type |
Description |
| message |
ArrayBuffer |
Received messages |
| remoteInfo |
RemoteInfo |
Structured information of message sources |
RemoteInfo
remoteInfo is composed as follows
| Property |
Type |
Description |
| address |
string |
The address of the socket sending the message |
| family |
string |
The protocol family used, IPv4 or IPv6 |
| port |
number |
Port number |
| size |
number |
The message size, in bytes |
SendOption
| Property |
Type |
Required |
Description |
| data |
string | ArrayBuffer |
Yes |
The data to be sent |
| complete |
(res: CallbackResult) => void |
No |
The callback function used when the API call completed (always executed whether the call succeeds or fails) |
| fail |
(res: CallbackResult) => void |
No |
The callback function for a failed API call |
| success |
(res: CallbackResult) => void |
No |
The callback function for a successful API call |
API Support
| API |
WeChat Mini-Program |
H5 |
React Native |
| UDPSocket.close |
✔️ |
|
|
| UDPSocket.offClose |
✔️ |
|
|
| UDPSocket.offError |
✔️ |
|
|
| UDPSocket.offListening |
✔️ |
|
|
| UDPSocket.offMessage |
✔️ |
|
|
| UDPSocket.onClose |
✔️ |
|
|
| UDPSocket.onError |
✔️ |
|
|
| UDPSocket.onListening |
✔️ |
|
|
| UDPSocket.onMessage |
✔️ |
|
|
| UDPSocket.send |
✔️ |
|
|
| UDPSocket.bind |
✔️ |
|
|
