Sample MacOS console app about maui-samples HOT 7 CLOSED

I gave it a shot, but (as of preview 3) couldn't quite get it to work.

Setting the framework does pull in various Mac-specific dependencies, and I do get IntelliSense for the Foundation and AppKit namespaces.

However, at runtime, calling an AppKit method fails with:

// System.DllNotFoundException: Could not find the runtime library libxammac.dylib
NSApplication.Init();

And for Foundation:

// [ERROR] FATAL UNHANDLED EXCEPTION: System.TypeInitializationException:
// TypeInitialization_Type, Foundation.NSString
var str = new NSString("test");
var num = new NSNumber(123.45);

Haven't tried with a preview 4 build.

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Thanks @chucker however seems that as of 6.0.100-preview.4.21255.9 it's still failing due to above issues

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Probably related: xamarin/xamarin-macios#9800

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Also related: xamarin/xamarin-macios#11094

If I add <SelfContained>true</SelfContained> and run the binary inside the bundle (which without that property doesn't get produced), it works for me, aside from a MonoTouch warning at the beginning.

MonoTouch: Could not install sigaction override, unexpected sigaction implementation.
xamarin_vm_initialize (3, 0x7ffeeb4a4f80, 0x7ffeeb4a4f60): rv: 0
Hello World!
str has string value test
num has float value 123.45

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You can just start with our HelloMacOS sample: https://github.com/dotnet/maui-samples/tree/main/HelloMacOS

and then remove any UI:

• Remove AppDelegate.cs: https://github.com/dotnet/maui-samples/blob/main/HelloMacOS/AppDelegate.cs
• Remove Main.storyboard: https://github.com/dotnet/maui-samples/blob/main/HelloMacOS/Main.storyboard
• Remove ViewController.cs and ViewController.designer.cs: https://github.com/dotnet/maui-samples/blob/main/HelloMacOS/ViewController.cs
• Don't call NSApplication.Main: https://github.com/dotnet/maui-samples/blob/main/HelloMacOS/Main.cs#L10
• Remove NSPrincipalClass and NSMainStoryboardFile from the Info.plist:

  maui-samples/HelloMacOS/Info.plist

  Lines 25 to 28 in 4506777

  	<key>NSPrincipalClass</key>
  	<string>NSApplication</string>
  	<key>NSMainStoryboardFile</key>
  	<string>Main</string>

You might also want to add an LSUIElement entry to your Info.plist (this will prevent an icon from showing up in the dock when you run your app):

<key>LSUIElement</key>
<string>1</string>

Then finally you can add your code after the call to NSApplication.Init here:

As @chucker mentions here, you have to execute the executable inside the app bundle (in the Contents/MacOS directory) directly. Don't try to use "dotnet path/to/.dll", that won't work.

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Thanks - that indeed works 👍

I'm getting some warnings in runtime, but just ignoring them for now:

objc[23294]: Class AMSupportURLConnectionDelegate is implemented in both /System/Library/PrivateFrameworks/OSPersonalization.framework/Versions/A/OSPersonalization (0x7fff8d675250) and /System/Library/PrivateFrameworks/MobileDevice.framework/Versions/A/MobileDevice (0x105219ae0). One of the two will be used. Which one is undefined.
objc[23294]: Class AMSupportURLSession is implemented in both /System/Library/PrivateFrameworks/OSPersonalization.framework/Versions/A/OSPersonalization (0x7fff8d6752a0) and /System/Library/PrivateFrameworks/MobileDevice.framework/Versions/A/MobileDevice (0x105219b30). One of the two will be used. Which one is undefined.
MonoTouch: Could not install sigaction override, unexpected sigaction implementation.
xamarin_vm_initialize (3, 0x7ffeeb51c5e0, 0x7ffeeb51c5c0): rv: 0

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Thanks - that indeed works 👍

I'm getting some warnings in runtime, but just ignoring them for now:

objc[23294]: Class AMSupportURLConnectionDelegate is implemented in both /System/Library/PrivateFrameworks/OSPersonalization.framework/Versions/A/OSPersonalization (0x7fff8d675250) and /System/Library/PrivateFrameworks/MobileDevice.framework/Versions/A/MobileDevice (0x105219ae0). One of the two will be used. Which one is undefined.
objc[23294]: Class AMSupportURLSession is implemented in both /System/Library/PrivateFrameworks/OSPersonalization.framework/Versions/A/OSPersonalization (0x7fff8d6752a0) and /System/Library/PrivateFrameworks/MobileDevice.framework/Versions/A/MobileDevice (0x105219b30). One of the two will be used. Which one is undefined.
MonoTouch: Could not install sigaction override, unexpected sigaction implementation.
xamarin_vm_initialize (3, 0x7ffeeb51c5e0, 0x7ffeeb51c5c0): rv: 0

The two first ones come from system code, and I don't think there's much we can do about them.

The two last ones come from our code, and will be fixed in a future preview.

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