Android Studio ——How can I modify one Class's field before compile by build.gradle -


in android app i'm developing android studio, have class: 

public class config {   public static final string sdk_version = "0.1"; }

i want modify value of sdk_version field changing file build.gradle:

def sdk_version = "0.1"  android {   defaultconfig {       versionname sdk_version   } }

how can make value of sdk_version in config.java change automatically when change in build.gradle? otherwise, might change 1 forget change other.

you can example in starter activity in oncreate(), make in not final befor.

config.sdk_version = buildconfig.version_name;

or why don't use buildconfig.version_name; instead in place constant needed?


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