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?
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3 Answers
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(getPackageName(), 0).versionCode; } catch (NameNotFoundException e) { // Huh? Really? } return v; } 
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Yes, you can access this information via PackageManager.getPackageInfo
Also, see details about versioning in the documentation
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You can get version code simply from <package_name>.BuildConfig#VERSION_CODE reference. It is generated by ADT plugin/Intellij.
