Is a negative version code for android application valid?

Question

I'm working on an app publishing platform for android and I want to make sure whether using a negative versionCode for android applications valid? I tried it and it built and ran fine.

Answer 1

I think it's valid. As android developer site says below:

An internal version number. This number is used only to determine whether one version is more recent than another, with higher numbers indicating more recent versions. This is not the version number shown to users; that number is set by the versionName attribute.

The value must be set as an integer, such as "100". You can define it however you want, as long as each successive version has a higher number. For example, it could be a build number. Or you could translate a version number in "x.y" format to an integer by encoding the "x" and "y" separately in the lower and upper 16 bits. Or you could simply increase the number by one each time a new version is released.

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