Help Center> IoT Device Access> SDK Reference> Old SDKs> AgentLite API Reference (Java)> Access of Directly Connected Devices> Unbinding a Device
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Unbinding a Device

API Function

This API is used to passively receive the unbinding command delivered by the IoT platform. After the command is received, the configuration information of the directly connected device is deleted, and all resources are released. (If this command is received, the device has been deleted from the IoT platform.)

API Description

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HubService.TOPIC_UNBINDDEVICE;

Class

HubService

Example

Implement the observer API provided by the AgentLite before calling this API.

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public class AgentLiteHub implements MyObserver {
    public Subscribe (Observable hubService) {
        hubService. registerObserver (this);
    }

Receive a device unbinding response.

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//After the device is unbound successfully, delete the configuration information of the directly connected device and release all resources after receiving the callback.
public void update(IotaMessage arg0) {
    // TODO Auto-generated method stub
      System.out.println("Receive a notification from HubService:" + arg0);
    int mMsgType = arg0.getMsgType();
    switch(mMsgType) {
//Receive a device adding response.
        case IodevService.IODEV_MSG_ADD_DEVICE_RSP:
        getAddDeviceAnswer(arg0);
        break;
//Receive a device deletion response.
        case IodevService.IODEV_MSG_RMV_DEVICE_RSP:
        getRmvDeviceAnswer(arg0);
        break;
//Receive a device status update response.
        case IodevService.IODEV_MSG_UPDATE_DEVSTATUS_RSP:
        getUpdateStatusAnswer(arg0);
        break;
        case IodevService.IODEV_MSG_RECEIVE_CMD:
        getUnbindAnswer(arg0);
        break;
        default:
        break;
    }
}