Try this,
try { PackageInfo pInfo = context.getPackageManager().getPackageInfo(context.getPackageName(), 0); String version = pInfo.versionName; int verCode = pInfo.versionCode; } catch (PackageManager.NameNotFoundException e) { e.printStackTrace(); }

Use:
try { PackageInfo pInfo = context.getPackageManager().getPackageInfo(context.getPackageName(), 0); String version = pInfo.versionName; } catch (PackageManager.NameNotFoundException e) { e.printStackTrace(); }
And you can get the version code by using this
int verCode = pInfo.versionCode;