I made I18N strings resource by ResX file.
But, it doesn't works well on only Xamarin.Mac cocoa app.
On Mac Console app, it works well.
My test code is here.https://github.com/simeon052/I18NSample
Do anyone have a good idea?
Xamarin.Mac's msbuild logic currently does not support resx files, so the ja-JP folder in your example is not being copied into your app bundle. If you, for example, copy it into i18NSample.Mac.app/Contents/MonoBundle then your sample will work.
I would suggest using this sample: https://developer.xamarin.com/samples/mac/UseMSBuildToCopyFilesToBundleExample/
to add logic to copy the files you need into the bundle. By doing it here instead of manually, you shouldn't need to resign your bundle when you add code signing.
Thank you for your quick response.
My sample app works well with your suggestion.
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