Question

Hi I’m not particular good at Java so please bear with me. I’m trying to write a very simple android app now and I need help with some coding.

Thing is, I have a server that automatically generates .png files and saves them to a public directory in a numerical order. The update occurs daily and is non-exhaustive.

Is there anyway in which I can assign the dynamic values to an array within my app?

            private String[] myRemoteImages = {
            "http://hypotheticalurl1.png",
            "http://hypotheticalurl2.png",
            "http://hypotheticalurl3.png",
            "http://hypotheticalurl4.png",
            "http://hypotheticalurl5.png",
            "http://hypotheticalurl6.png",
            "http://hypotheticalurl7.png",
            "http://hypotheticalurl8.png",
            "http://hypotheticalurl9.png",
            "http://hypotheticalurl10.png",
            "http://hypotheticalurl11.png",
            "http://hypotheticalurl12.png",
            //...blah blah blah
            // these are all dynamically created so I won't know what is the last number on the list
    };

This array will eventually be used to get the images from my server using the app. It works so far but that’s only with hardcoded URLs. I would like the URLs to be dynamic, as the number of images will change from day to day.

I’m doubting that regex will work well in Java but then again I’m no expert. Was thinking of perhaps writing a script on the server end that generates a list of existing values and somehow parsing that with the android app.

Can anyone point me in the right direction? Thanks in advance.

Clarification:

The array doesn’t have to be dynamically sized while the app is running.

I need a way to read the list of existing images in a remote directory and pass that information to populate the array automatically at runtime.

Resolved

Guys, thanks for the help. Sorry if I wasn’t clear enough.

I’ve found a way to do it. Basically it was rather simple, which was to append an extra line of code to the shell script on the server end to generate a text list of existent image URLs at the same time that it generates the images.

After that, I used a combination of BufferedReader and openStream on the app to parse the remote text file into a String array.

Answer 1

thanks for the help. Sorry if I wasn’t clear enough.

I’ve found a way to do it. Basically it was rather simple, which was to append an extra line of code to the shell script on the server end to generate a text list of existent image URLs at the same time that it generates the images.

After that, I used a combination of BufferedReader and openStream on the app to parse the remote text file into a String array.