Android - 应用更新清单版本代码和名称

Question

my Android Manifest File :

my existing Version Code = 1

also

my existing Version Number = 1

I want to update my App and I know that have to change my Version Number eg to 1.1 but what does the Version Code mean?

• Should it stay at 1?

Or do i have to change it also? Maybe be to 2? oder anything else?

Thx for ur help!

Answer 1

Version Code is important. It indicates a release number. 1= first release, 2 = second release etc of your APK.

Version number is a display version that shows major minor release versions.

android:versionCode — An integer value that represents the version of the application code, relative to other versions. The value is an integer so that other applications can programmatically evaluate it, for example to check an upgrade or downgrade relationship. You can set the value to any integer you want, however you should make sure that each successive release of your application uses a greater value. The system does not enforce this behavior, but increasing the value with successive releases is normative. Typically, you would release the first version of your application with versionCode set to 1, then monotonically increase the value with each release, regardless whether the release constitutes a major or minor release. This means that the android:versionCode value does not necessarily have a strong resemblance to the application release version that is visible to the user (see android:versionName, below). Applications and publishing services should not display this version value to users.

android:versionName — A string value that represents the release version of the application code, as it should be shown to users. The value is a string so that you can describe the application version as a .. string, or as any other type of absolute or relative version identifier. As with android:versionCode, the system does not use this value for any internal purpose, other than to enable applications to display it to users. Publishing services may also extract the android:versionName value for display to users.

Source: http://developer.android.com/tools/publishing/versioning.html

Answer 2

but what does the Version Code mean?

It is how the OS, the marketplaces (Play Store, etc.), and other tools determine whether or not your APK represents an upgrade.

Quoting the documentation :

Typically, you would release the first version of your application with versionCode set to 1, then monotonically increase the value with each release, regardless whether the release constitutes a major or minor release. This means that the android:versionCode value does not necessarily have a strong resemblance to the application release version that is visible to the user (see android:versionName , below).

If your app is already published with an android:versionCode of 1 , your next upgrade needs to have an android:versionCode higher than 1 .

Answer 3

The version code is a code used not to presentation but for inner use. for example, to update a new version to the google play - you'll have to increase it by 1 at least. Another example - the Android application DB will get the onUpdate method pop if this version code is greater then the previous one.

Answer 4

Each time you publish a new version to the Google Play, you have to increment your version code. So, here it will be 2.

Regards,

Answer 5

As it says on the official docs at http://developer.android.com/tools/publishing/versioning.html :

android:versionCode — An integer value that represents the version of the application code, relative to other versions. The value is an integer so that other applications can programmatically evaluate it.

android:versionName — A string value that represents the release version of the application code, as it should be shown to users. The value is a string so that you can describe the application version as a <major>.<minor.>point> string, or as any other type of absolute or relative version identifier. As with android:versionCode, the system does not use this value for any internal purpose

So I guess you should come with your own numbering scheme. For example, you could use 9 digit scheme, with 3 3-digit pieces for <major>.<minor.>point>. In this case, 1.1.0 would be 001001000, and then 1.1.1 would be 001001001 and so on. This guarantees that you can compare the number directly to know if a version is older or newer.