As per the document of Android SDKdocumentation android:nestedScrollingEnabled="false" works, but only on Android API level >= 21.
android:nestedScrollingEnabled="false"is work, if you are using Android API level >= 21.
But nowaday, peopleIf you want the appto support from below of 21 also, so there another best solution of smooth scroll of recycle view inside nested scrollview fordevices below and above ofAPI 21 is as well, use the following:
ViewCompat.setNestedScrollingEnabled(recyclerView, false);
ViewCompat.setNestedScrollingEnabled(recyclerView, false);