Android Question [SOLVED] There was a problem with Download File Example

[incendio]

Hi guys,

I follow this tutorial to download apk file from the B4J server into smartphone.

Download huge files with HttpUtils2

Better to use: https://www.b4x.com/android/forum/threads/simple-progress-http-download.127214/#post-796463 The attached project includes a slightly modified version of HttpUtils2 and a new service named DownloadService. The purpose of DownloadService is to make it simple to download files of...

www.b4x.com

The operation was successful but there was something strange with the downloaded file .
The icon of the apk was not displayed, see the attachment file. And when I double clicked this file, the error
There was a problem parsing the package raised.

If I copied manually the apk to smartphone, the icon from the apk was showed.

Here is the code to copied downloded file

Sub dd_Complete(Job As HttpJob)
    Log("Job completed: " & Job.Success)
  
    Dim o As OutputStream
    o = File.OpenOutput(File.DirDefaultExternal, "Test.apk", False)
    File.Copy2(Job.GetInputStream,o)
    Job.Release
End Sub

I tried to download that file via browser in smartphone & install it, it was OK.

So the problem seem in download file or copy from Inputstream to Outputstream.

Any idea how to solved this?

 

[Alex_197]

1. In the IDE - click on Ctrl+P to clean up the project.
2. Just reboot your phone.
3. It might happens if you are running Android 8 or 9 but trying to upload the B4XPage project. If it's a case - you will get this error. The only option is to upgrade your phone to 10+

 

[incendio]

I have tested to download and exe & apk file with the app and download manually via browser in smartphone.

With browser, the file size (exe & apk) are exactly the same and it can run on Windows OS/Android without a problem.

With the app, the file size are smaller and can't run both on Windows/Android.

I think there was a problem with Download file example or copy from Inputstream to Outputstream.

 

[Erel]

Code with File.DirDefaultExternal = broken code.

Why aren't you checking that Job.Success is true?

I recommend you to start with the simple HttpJob.Download: [B4X] OkHttpUtils2 with Wait For

 

[incendio]

After looking your example, found that I was missing 1 important line which is to close OutputStream.

Never work with OutputStream before, don't know that it must be closed.

All worked now, thanks.