AppDownload | 适配8.0，有下载进度的Android版本更新库。

I am trying to create a download endpoint for my mobile app. The app is available on app store and play store. I want to have a single URL that can be used by users to download the app on either an iOS device or an Android device. I was trying to find out if I can create a cloud function for firebase for this purpose. I was thinking of checking the user-agent for the request and based on whether the request came from an iOS device or an Android device or a web browser, redirect the user to an appropriate URL. I have verified that the device information is present in the user-agent header. For e.g.

I coded an app and I am trying to download a apk from my webspace now. I googled the whole day now and everything I found was for Java I think, but I need C#.

This is what I found (not only this but it's an example): Downloading APK from server and installing it to device (but it's not working I don't know why).

But I have some problems with the code. I can't use the setRequestMethod or getinputstream etc.

Then I tried out this because it seemed to be much easier:

so im having this issue when trying to read a file.

I am getting the filenames from a directory and then looping through them to insert them into a db. but i keep getting an error. file cannot be accessed when i try Streamread the file.

Here is all my code and this is the only code that actually works with this directory at all so no other processes could lock this file.

i keep getting the error at this line "using (var reader = new StreamReader(localPath))" saying this "The process cannot access the file 'filename' because it is being used by another process"