dlt.onBLEConnectionStateChange(function listener)

简介

监听蓝牙设备连接状态

使用限制

必须在调用 dlt.createBLEConnection 之前注册

参数

function listener

蓝牙设备连接状态变化事件的监听函数

参数

Object res

属性	类型	说明
address	string	蓝牙设备的 mac 地址
status	number	当前状态
newState	number	蓝牙设备连接状态

status 状态说明

status	说明
0	A GATT operation completed successfully
2	GATT read operation is not permitted
3	GATT write operation is not permitted
5	Insufficient authentication for a given operation
6	The given request is not supported
7	A read or write operation was requested with an invalid offset
13	A write operation exceeds the maximum length of the attribute
15	Insufficient encryption for a given operation
143	A remote device connection is congested
257	A GATT operation failed, errors other than the above

newState 状态说明

newState	说明
0	The profile is in disconnected state
1	The profile is in connecting state
2	The profile is in connected state
3	The profile is in disconnecting state

示例代码

dlt.onBLEConnectionStateChange(function (res) {
  console.log(res);
});