Wear Engine provides the API for querying the list of peer devices connected to a wearable device.
You are advised to implement this API before calling other APIs of Wear Engine, and select the target device from the list of connected peer devices.
Call the getDeviceClient method to obtain the DeviceClient object.
Call the getConnectedDevices method to query the list of connected wearable devices.
Select the peer device to communicate with from the returned list.
Query the operating system type of the peer device.
// Before using Wear Engine, import wearEngine and other related modules.
import { wearEngine } from '@kit.WearEngine';
import { BusinessError } from '@kit.BasicServicesKit';
// Step 1: Obtain the DeviceClient object.
// this.getUIContext().getHostContext() indicates the Context object of the app.
let deviceClient: wearEngine.DeviceClient = wearEngine.getDeviceClient(this.getUIContext().getHostContext());
// Declare the target device.
let targetDevice: wearEngine.Device;
// Step 2: Call the getConnectedDevices method to query the list of peer devices that the user has connected.
deviceClient.getConnectedDevices().then(devices => {
console.info(`Succeeded in getting deviceList, deviceList number is ${devices.length}`);
// Step 3: Select the device to communicate with from the list of connected devices.
if (devices.length > 0) {
targetDevice = devices[0];
console.info(`Succeeded to get target device.`);
// Step 4: Query the operating system type of the peer device.
//
let osCategory: wearEngine.OsCategory | undefined = targetDevice.osCategory;
console.info(`The osCategory of target device is ${osCategory}`);
} else {
console.warn(`Failed to get target device. deviceList is empty.`);
}
}).catch((error: BusinessError) => {
// Process the exception captured if the API call fails.
console.error(`Failed to get deviceList. Code is ${error.code}, message is ${error.message}`);
})