【Android】How can I add the new “Floating Action Button” between two widgets/layouts

ref:add the new “Floating Action Button” between two widgets/layouts

Best practice:

• Add compile 'com.android.support:design:22.2.0' to gradle file
• Use CoordinatorLayout as root view.
• Add layout_anchorto the FAB and set it to the top view
• Add layout_anchorGravity to the FAB and set it to: bottom|right|end