public async Task <bool> GetDevice(string id)
{
IsBusy = true;
Device = await ParticleCloud.SharedInstance.GetDeviceAsync(id);
if (Device == null)
{
//device not owned
var success = await ParticleCloud.SharedInstance.ClaimDeviceAsync(id);
if (success)
{
Device = await ParticleCloud.SharedInstance.GetDeviceAsync(id);
IsBusy = false;
return(true);
}
else
{
IsBusy = false;
var device = InternetButtonHelper.GetDeviceName(id);
Application.Current.MainPage.DisplayAlert("Uh Oh", $"Can you get a Xamarin to help reset {device}?", "Will do");
return(false);
}
}
else if (Device.Connected)
{
//Device is owned and connected
IsBusy = false;
return(true);
}
else if (!Device.Connected)
{
//Device is owned but disconnected
IsBusy = false;
return(true);
}
return(false);
//var success = await ParticleCloud.SharedInstance.ClaimDeviceAsync(id);
//if (success)
//{
// Device = await ParticleCloud.SharedInstance.GetDeviceAsync(id);
// IsBusy = false;
// return true;
//}
//else
//{
// IsBusy = false;
// var device = InternetButtonHelper.GetDeviceName(id);
// Application.Current.MainPage.DisplayAlert("Uh Oh", $"Someone already has this device claimed, can you please ask a Xamarin to reset {device}", "Will do");
// return false;
//}
}
public ScanDevicePage()
{
NavigationPage.SetHasNavigationBar(this, false);
Title = "EvolveApp";
BackgroundColor = AppColors.BackgroundColor;
var viewModel = new ScanDeviceViewModel();
BindingContext = viewModel;
var layout = new RelativeLayout();
var titleLabel = new StyledLabel
{
Text = "Particle Internet Button",
CssStyle = "h1",
};
var subtitleLabel = new StyledLabel {
Text = "Take Control!", CssStyle = "h2"
};
var descriptionLabel = new StyledLabel {
Text = "Just scan the QR barcode of any device to take control.", CssStyle = "body"
};
var indicator = new ActivityIndicator();
var scanBarcodeButton = new StyledButton
{
Text = "START SCANNING",
CssStyle = "button",
BackgroundColor = AppColors.Blue,
BorderRadius = 0,
HeightRequest = AppSettings.ButtonHeight
};
layout.Children.Add(titleLabel,
xConstraint: Constraint.Constant(AppSettings.Margin),
yConstraint: Constraint.Constant(AppSettings.Margin * 3),
widthConstraint: Constraint.RelativeToParent(p => p.Width - AppSettings.Margin * 2),
heightConstraint: Constraint.Constant(100)
);
layout.Children.Add(subtitleLabel,
xConstraint: Constraint.Constant(AppSettings.Margin),
yConstraint: Constraint.RelativeToView(titleLabel, (p, v) => v.Height + v.Y + AppSettings.ItemPadding),
widthConstraint: Constraint.RelativeToParent(p => p.Width - AppSettings.Margin * 2)
);
layout.Children.Add(descriptionLabel,
xConstraint: Constraint.Constant(AppSettings.Margin),
yConstraint: Constraint.RelativeToView(subtitleLabel, (p, v) => v.Height + v.Y + AppSettings.Margin),
widthConstraint: Constraint.RelativeToParent(p => p.Width - AppSettings.Margin * 2)
);
layout.Children.Add(indicator,
xConstraint: Constraint.Constant(AppSettings.Margin),
yConstraint: Constraint.RelativeToView(descriptionLabel, (p, v) => v.Y + v.Height),
widthConstraint: Constraint.RelativeToParent(p => p.Width - AppSettings.Margin * 2),
heightConstraint: Constraint.RelativeToView(descriptionLabel, (p, v) => p.Height - v.Y - v.Height - AppSettings.Margin - AppSettings.ButtonHeight)
);
layout.Children.Add(scanBarcodeButton,
xConstraint: Constraint.Constant(AppSettings.Margin),
yConstraint: Constraint.RelativeToParent(p => p.Height - AppSettings.Margin - AppSettings.ButtonHeight),
widthConstraint: Constraint.RelativeToParent(p => p.Width - AppSettings.Margin * 2),
heightConstraint: Constraint.Constant(50)
);
Content = layout;
#if __IOS__
scanBarcodeButton.TextColor = Color.FromHex("#ffffff");
#endif
scanBarcodeButton.Clicked += async(object sender, EventArgs e) =>
{
viewModel.SetLock();
var scanPage = new ZXingScannerPage();
scanPage.OnScanResult += (result) =>
{
scanPage.IsScanning = false;
Device.BeginInvokeOnMainThread(async() =>
{
await Navigation.PopModalAsync();
System.Diagnostics.Debug.WriteLine($"Result: {result.Text}");
var isValidDevice = InternetButtonHelper.CheckDeviceId(result.Text);
System.Diagnostics.Debug.WriteLine($"{isValidDevice}");
if (isValidDevice)
{
var success = await viewModel.GetDevice(result.Text);
if (!success)
{
viewModel.ClearLock();
return;
}
var navPage = new NavigationPage(new DeviceLandingPage(viewModel.Device));
#if __IOS__
navPage.BarBackgroundColor = AppColors.Blue;
navPage.BarTextColor = Color.White;
#endif
await Navigation.PushModalAsync(navPage);
}
else
{
DisplayAlert("Error", "The barcode scanner had an error. Please try scanning the barcode again", "Ok");
}
viewModel.ClearLock();
});
};
await Navigation.PushModalAsync(scanPage);
};
indicator.SetBinding(ActivityIndicator.IsRunningProperty, "IsBusy");
if (Device.OS != TargetPlatform.iOS && Device.OS != TargetPlatform.Android)
{
indicator.SetBinding(ActivityIndicator.IsVisibleProperty, "IsBusy");
}
#if __IOS__
scanBarcodeButton.SetBinding(Button.IsEnabledProperty, "ButtonLock");
#endif
#if __ANDROID__
scanBarcodeButton.SetBinding(Button.IsEnabledProperty, "ButtonLock");
#endif
}
