Detect my apps own android:versionCode at run time

Question

Is there a way for my app to know the android:versionCode from AndroidManifest.xml or do I have to create a separate constant in one of my classes?

Answer 1

You can use PackageManager.getPackageInfo()

http://developer.android.com/reference/android/content/pm/PackageManager.html#getPackageInfo%28java.lang.String,%20int%29

Answer 2

Yes, you can access this information via PackageManager.getPackageInfo

Also, see details about versioning in the documentation

Answer 3

I put this in my subclassed android.app.Application but you can use it anywhere you have a context. Just change getPackageManager() to context.getPackageManager().

public int getVersion() {
    int v = 0;
    try {
        v = getPackageManager().getPackageInfo(getApplicationInfo().packageName, 0).versionCode;
    } catch (NameNotFoundException e) {
        // Huh? Really?
    }
    return v;
}