How to extract a zip file on MAUI Platform.

Question

i have my zip files saved in Downloads folder. how can i extract the zip to a folder

        try
        {
            string zipFilename = "coregsbundle.zip";
            string ZipPath = Path.Combine(Android.App.Application.Context.GetExternalFilesDir(Android.OS.Environment.DirectoryDownloads).ToString(), zipFilename);
      
            ZipFile.ExtractToDirectory(ZipPath, FileSystem.AppDataDirectory);
 
        }
        catch (Exception e)
        {
            Console.WriteLine(e.Message.ToString());
        }

Answer 1

Hello,

From native android document: Storage updates in Android 11

Starting in Android 11, apps that use the scoped storage model can access only their own app-specific cache files

So, you cannot access the public external download folder.

You can download your file to the app internal storage, such as FileSystem.AppDataDirectory, then you can use ZipFile.ExtractToDirectory to extract a zip file on MAUI like following code.

       string zipFilename = "coregsbundle.zip";
        string ZipPath = Path.Combine(FileSystem.AppDataDirectory, zipFilename);        ZipFile.ExtractToDirectory(ZipPath, FileSystem.AppDataDirectory);

Best Regards,

Leon Lu

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