Android Question How to check if a file exist online before download?

[ginsh]

Hi,

Anyone please let me know How to check if a file exist online before download when using HttpUtils2?

 

[eurojam]

I would use HTTP Lib for this task (http://www.b4x.com/android/help/http.html). Init with the Url of your file and then use StatusCode As Int [read only]. When the Code is 200 the file will exist. I didn't tried this, it is just an idea how to start. may be there more easy or better solutions...

stefan

 

[ThRuST]

Another workaround is to download the file in a try catch and then check if the file exists locally by using a timer.
Would be rather effective for smaller files. Perhaps not the best solution but a working alternative.

 

[ilan]

there is a much simpler way

KMatle posted a very usefull tutorial how to get a list of files from a directory on your server via php.
i use it in my apps and its working great (i have modified a little the php file to get more details back)

you chould have a look on it https://www.b4x.com/android/forum/t...webserver-directory-via-httputils2-php.43320/