带相机的原语信标

Question

我是nativescript的新手。对不起，我的英语不好。 希望你们能帮助我。

我有一个带有angular 2应用程序的本机脚本。我目前正在做蓝牙信标。我想为我的应用程序提供摄像头功能，每次按下该按钮，信标就会通知。

当按钮被按下时，我想要的是什么。相机将拍摄照片，而不是用户手册。单击相机按钮。

这是我的代码。

public static async Task RunTask() {
    StdSchedulerFactory factory = new StdSchedulerFactory(System.Configuration.ConfigurationManager.AppSettings);
    IScheduler scheduler = await factory.GetScheduler();
    await scheduler.Start();

    IReadOnlyCollection<string> jgn = await sch.GetJobGroupNames(new System.Threading.CancellationToken());
    foreach (string jno in jgn)
    {
        IReadOnlyCollection <JobKey> jk = await sch.GetJobKeys(jobGroupEquals(jno));
        foreach (JobKey j in jk)
        {
            var currentJob = await sch.GetJobDetail(j);

            //print the properties of the current job
            Console.WriteLine(currentJob.Key.Name);
            Console.WriteLine(currentJob.Description);
        }                   
    }
}   

private static GroupMatcher<JobKey> jobGroupEquals(string jno)
{
    return GroupMatcher<JobKey>.GroupEquals(jno);
}

 bluetooth.startNotifying({
            peripheralUUID: "FF:FF:90:01:B1:EF",
            serviceUUID: "ffe0",
            characteristicUUID: "ffe1",
            onNotify: function (result) {
                try {
                    var data = new Uint8Array(result.value);
                    console.log('notify: ' + JSON.stringify(data[0]));
                    /*  camera.takePicture()*/
                    if (data[0] = 1) {
                        camera.takePicture()
                            .then(function (imageAsset) {
                            console.log("Result is an image asset instance");
                            var image = new imageModule.Image();
                            image.src = imageAsset;
                        }).catch(function (err) {
                            console.log("Error -> " + err.message);
                        });
                    }
                }
                catch (e) {
                    alert('notify value not readable: ' + e.message);
                }
            }
        }).then(function () {
            console.log("subscribed for notifications");
        });