To get only the Build Number value as shown on the "About Device" in settings, we can use the following static method:
/**
* This method returns Build Number of the device from the OS Build fingerprint
* @return osBuildNumber - human entered name of the device
*/
public static String getOSBuildNumber() {
String osBuildNumber = Build.FINGERPRINT; //"google/shamu/shamu:5.1.1/LMY48Y/2364368:user/release-keys”
final String forwardSlash = "/";
String osReleaseVersion = Build.VERSION.RELEASE + forwardSlash;
try {
osBuildNumber = osBuildNumber.substring(osBuildNumber.indexOf(osReleaseVersion)); //"5.1.1/LMY48Y/2364368:user/release-keys”
osBuildNumber = osBuildNumber.replace(osReleaseVersion, ""); //"LMY48Y/2364368:user/release-keys”
osBuildNumber = osBuildNumber.substring(0, osBuildNumber.indexOf(forwardSlash)); //"LMY48Y"
} catch (Exception e) {
Log.e("getOSBuildNumber", "Exception while parsing - " + e.getMessage());
}
return osBuildNumber;
}
This will just return the exact value of the build number. Please keep in mind that Android SDK refrains from doing this. Check the following snippet in BUILD class:
/** A string that uniquely identifies this build. Do not attempt to parse this value. */
public static final String FINGERPRINT = deriveFingerprint();
/**
* Some devices split the fingerprint components between multiple
* partitions, so we might derive the fingerprint at runtime.
*/
private static String deriveFingerprint() {
String finger = SystemProperties.get("ro.build.fingerprint");
if (TextUtils.isEmpty(finger)) {
finger = getString("ro.product.brand") + '/' +
getString("ro.product.name") + '/' +
getString("ro.product.device") + ':' +
getString("ro.build.version.release") + '/' +
getString("ro.build.id") + '/' +
getString("ro.build.version.incremental") + ':' +
getString("ro.build.type") + '/' +
getString("ro.build.tags");
}
return finger;
}
The above method is just reverse engineering the data provided in the "deriveFingerprint()" method.