How to open a file in Xamarin Essentials

This article mainly shows you "how to open a file in Xamarin Essentials", the content is easy to understand, clear, hope to help you solve your doubts, the following let the editor lead you to study and learn "how to open a file in Xamarin Essentials" this article.

The OpenAppPackageFileAsync () method of the FileSystem class can be used to open a specific file in the App package, with the following syntax:

Public static System.Threading.Tasks.Task OpenAppPackageFileAsync (string filename)

Where the filename parameter is used to specify the name of the file.

[example 1-3] the specified file will be opened and read below. The code is as follows:

Async Task Open_File () {/ / Open file using (var stream = await FileSystem.OpenAppPackageFileAsync ("templateFileName")) {/ / read file using (var reader = new StreamReader (stream)) {var fileContents = await reader.ReadToEndAsync ();}

Note: due to the difference of the platform, the location of the open files in the project is also different.

Q Android: add the file to the Assets folder of the Android project and mark the Build Action in the attribute as AndroidAsset.

Q iOS: add the file to the Resources folder of the iOS project and mark the Build Action in the attribute as BundledResource.

Q UWP: add the file to the root directory of the UWP project and mark the Build Action in the attribute as Content.

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