Jamal Eason, Product Manager, Android said “Today with the final Developer Preview update, we’re introducing the official Android 6.0 SDK and opening Google Play for publishing your apps that target the new API level 23 in Android Marshmallow,”
There will be some new features added to the operating system that will enable the smartphone makers to easily incorporate things such as fingerprint scanner or an upgraded doze power saving mode.
Jamal also added “Classes for detecting and parsing bar codes are available in the com.google.android.gms.vision.barcode namespace. The BarcodeDetector class is the main workhorse — processing Frame objects to return a SparseArray