In an 8.1 Universal app, is there an equivalent to:
if (Microsoft.Devices.Environment.DeviceType == DeviceType.Emulator)
{
// Emulator-specific code
}
I've looked and can't find a similar API.
You could try something like this:
Windows.Security.ExchangeActiveSyncProvisioning.EasClientDeviceInformation deviceInfo = new Windows.Security.ExchangeActiveSyncProvisioning.EasClientDeviceInformation();
deviceInfo should give you info about SystemManufacturer ("Microsoft") & SystemProductName ("Virtual").
EDIT: I wrote a blog post about this problem.
You could try something like this:
if (Windows.ApplicationModel.Package.Current.IsDevelopmentMode)
{
// Emulator-specific code
}
https://msdn.microsoft.com/en-us/library/windows/apps/windows.applicationmodel.package.isdevelopmentmode.aspx
Related
I am building a desktop app in .NET Maui which targets Windows and MacOS.
When using the built-in FilePicker on Mac (Catalyst) I get the following error:
{System.PlatformNotSupportedException: This platform does not support this file type. at Microsoft.Maui.Storage.FilePickerFileType.GetPlatformFileType(DevicePlatform platform) at Microsoft.Maui.Storage.FilePickerFileType.get_Value() at Microsoft.Maui.S…}
I have tried multiple file types, including csv, jpg, text/csv but nothing works.
public async Task ImportCSV()
{
try
{
var customFileType = new FilePickerFileType(
new Dictionary<DevicePlatform, IEnumerable<string>>
{
{ DevicePlatform.WinUI, new[] { ".csv" } },
{ DevicePlatform.macOS, new[] {"csv"} }
});
PickOptions options = new()
{
PickerTitle = "Please select a csv file",
FileTypes = customFileType
};
var file = await FilePicker.Default.PickAsync(options);
if (file != null)
{
string filePath = AppStateService.fixMacFilePath(file.FullPath);
AppStateService.AppState.csvFilePath = filePath;
await InitiateCsvMapping();
}
}
catch (Exception ex)
{
}
}
I am running Visual Studio Community 2022 for Mac Preview
Version 17.4 Preview (17.4 build 715)
The documentation does say that I should "Enable iCloud capabilities" but does not provide any links or other information regarding this. I did some digging, and found some documentation that says that it necessary to do this via the Entitlements.plist file (but there is none in the Maui project) and seems to only be relevant when publishing your app to the App store which I am not during development. I don't even care about iCloud right now. I just want to select a CSV file from my own desktop. Is this the problem? Thanks!!
Here is the article
I don't think it has something to do with ICloud. It is just the wrong file type. File types are different on MacOS.They are called UTypes.
I haven't tried but it is likely:
public.comma-separated-values-text
More Info here: commaSeparatedText
And maybe it is DevicePlatform.MacCatalyst instead of macOs.
I'm wondering if I can implement local notification in flutter web? I saw that I can create local notification for mobile app Android or IOS but is it possible to use it for web app? or any other alternative to accomplish it?
Just use the class Notification in dart:html package. You can do something like this:
import 'dart:html' as web;
Future<void> showNotification( String message ) async {
var permission = web.Notification.permission;
if (permission != 'granted') {
permission = await web.Notification.requestPermission();
}
if (permission == 'granted') {
web.Notification( message );
}
}
More info about the javascript notification API here: https://developer.mozilla.org/en-US/docs/Web/API/Notifications_API/Using_the_Notifications_API
Perhaps this is expected behavior, but the programmatic launching of built-in applications in Windows 10 is scarce for anything aside from settings app, maps, and contacts, in my experience - and I could use some help on this.
I am launching the stock Windows Calculator from within the application. I took some guesses as the Uri and it appears to work - except on the first launch. When we get a new device, the first time the app is run and the calculator is attempted to be launched, it wants to get an app from the store (which the end users will not have access to) - it does not even offer the built-in calculator as a choice. If the calculator is opened manually, even once, it just works from that point on. Is there something else I could/should be doing? Any guidance or suggestions would be greatly appreciated.
I would like to have it work the first time (a setting on the device?), or at least offer the built-in calculator as a choice.
Here is the code I am using:
private async void LaunchCalculatorAsync(object sender, TappedRoutedEventArgs e)
{
var options = new Windows.System.LauncherOptions();
options.TreatAsUntrusted = false;
options.DesiredRemainingView = Windows.UI.ViewManagement.ViewSizePreference.UseNone;
await Windows.System.Launcher.LaunchUriAsync(new Uri("calculator:"), options);
}
From running a list of installed apps on the device, I see the calculator listed: Microsoft.WindowsCalculator_8wekyb3d8bbwe. I have been unsuccessful with attempting to provide the PreferredApplicationPackageFamilyName using options.PreferredApplicationPackageFamilyName = "WindowsCalculator";
I have tried with/without the "Microsoft." as well as with/without the odd string of characters.
You may get the demo from Microsoft in GitHub,
Association launching sample
Hope this can help you.
private async void LaunchUriWithWarning()
{
// Create the URI to launch from a string.
var uri = new Uri(UriToLaunch.Text);
// Configure the warning prompt.
var options = new LauncherOptions() { TreatAsUntrusted = true };
// Launch the URI.
bool success = await Launcher.LaunchUriAsync(uri, options);
if (success)
{
rootPage.NotifyUser("URI launched: " + uri.AbsoluteUri, NotifyType.StatusMessage);
}
else
{
rootPage.NotifyUser("URI launch failed.", NotifyType.ErrorMessage);
}
}
My app just got reject from apple and i believe it might be caused by them changing to test with ios 8.1. However I cannot reproduce the error in any way. Their chrash report states the app chrashes on startup.
It seems that the exception(have the crash log) comes from
<Warning> Unhandled managed exception: Access to the path "/var/mobile/Documents/settings" is denied. (System.UnauthorizedAccessException)
which originates from
Cirrious.MvvmCross.Plugins.File.MvxFileStore.WriteFileCommon
I am using the mvvmcross 3.11 MvxFileStore plugin. Deployment target ios7, 8.1 ios sdk.
I have been surfing the web and some states Documents directory has moved in iOS 8 and this might cause the exception.
But I cant wrap my head around the fact that I cant reproduce this error.
Do anyone have a similar issue, a suggestion how to fix or an idea how to reproduce their crash.
Anything is appreciated.
Update:
From the post it is suggested to do the following fix
int SystemVersion = Convert.ToInt16(UIDevice.CurrentDevice.SystemVersion.Split('.')[0]);
if (SystemVersion >= 8)
{
var documents = NSFileManager.DefaultManager.GetUrls(NSSearchPathDirectory.DocumentDirectory, NSSearchPathDomain.User)[0].Path;
filename = Path.Combine(documents, sFile);
}
else
{
var documents = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments); // iOS 7 and earlier
filename = Path.Combine(documents, sFile);
}
I have tried adding it to our project. We used the MvxFileStore to create the path to the settings file
var filestore = Mvx.Resolve<IMvxFileStore>();
string path = filestore.PathCombine(filestore.NativePath (string.Empty), FILENAME);
Now We de the following
var filestore = Mvx.Resolve<IMvxFileStore>();
string path = this.DocsDir() + "/" + FILENAME;
public string DocsDir ()
{
var version = int.Parse(UIDevice.CurrentDevice.SystemVersion.Split('.')[0]);
string docsDir = "";
if (version>=8) {
var docs = NSFileManager.DefaultManager.GetUrls (NSSearchPathDirectory.DocumentDirectory, NSSearchPathDomain.User) [0];
docsDir = docs.Path;
Console.WriteLine("ios 8++ "+docsDir);
} else {
docsDir = Environment.GetFolderPath (Environment.SpecialFolder.MyDocuments);
Console.WriteLine("ios 7.1-- " + docsDir);
}
return docsDir;
}
I will resubmit our app and post the result.
Okay,
The fix we did by seperating ios 8 and the rest of ios and do different implementations depending on the ios worked.
Apple has approved our apps and all is love (y)
I was trying to write an Email sending code for Windows Phone Universal App. This is the Code that I have written in my Event Handler:
Windows.ApplicationModel.Email.EmailMessage email = new Windows.ApplicationModel.Email.EmailMessage();
email.Subject = "Good morning";
email.Body = "Hello, how are you?";
var emailRecipient = new Windows.ApplicationModel.Email.EmailRecipient(email.Address);
email.To.Add(emailRecipient);
await Windows.ApplicationModel.Email.EmailManager.ShowComposeNewEmailAsync(email);
This code works for my Windows Phone 8.1 App. But it's not working in the Universal App. Shall I have to add any reference? Is there any way to make it work in the Universal app?
Thanks a lot. :)
In Windows Store App, Windows.ApplicationModel.Email namespace is not supported.
See EmailMessage class in MSDN.
You can send mail use mailto protocol, and use LaunchUriAsync method. like this:
await Launcher.LaunchUriAsync(
new Uri(
"mailto:someemail#somedomain.com?subject=SomeSubject&body=mail content"
));
In UWP development, a lot of codes still same with Windows Phone 8.1 /Windows Store App. As below shown send an email with attachment.
EmailMessage email = new EmailMessage();
email.To.Add(new EmailRecipient("test#developerpublish.com"));
email.Subject = "Blog pos`enter code here`t by #isenthil";
var file = await GetTextFile();
email.Attachments.Add(new EmailAttachment(file.Name, file));
await EmailManager.ShowComposeNewEmailAsync(email);