Auto increment version code in Android app

Question

is there a way to auto-increment the version code each time you build an Android application in Eclipse?

According to http://developer.android.com/guide/publishing/v

Answer 1

Here is the Java version for what it's worth. Also handling multiple manifests.

String directory = "d:\\Android\\workspace\\";

String[] manifests = new String[] 
{
        "app-free\\AndroidManifest.xml",
        "app-donate\\AndroidManifest.xml",
};

public static void main(String[] args)
{
    new version_code().run();
}

public void run()
{
    int I = manifests.length;
    for(int i = 0; i < I; i++)
    {
        String path = directory + manifests[i];

        String content = readFile(path);
        Pattern         versionPattern = Pattern.compile( "(.*android:versionCode=\")([0-9]+)(\".*)", Pattern.DOTALL );
        Matcher m = versionPattern.matcher(content);

        if (m.matches())
        {
            int code = Integer.parseInt( m.group(2) ) + 1;

            System.out.println("Updating manifest " + path + " with versionCode=" + code);

            String newContent = m.replaceFirst("$1" + code + "$3");

            writeFile(path + ".original.txt", content);
            writeFile(path, newContent);
        }
        else
        {
            System.out.println("No match to update manifest " + path);
        }
    }
}