qwertz questions

• Android toolbar context menu for listview items
• Android RecyclerView StaggeredGridLayoutManager vertical order
• Dynamically update title of Design Support TabLayout
• RecyclerView GridLayout width full width and half width
• Android NestedScrollView align content on top
• Android elevation and setElevation not the same effect
• Android TabLayout not reloading fragments
• Android transform icon into another one
• Android TabLayout does not display contents anymore as soon as fragment is switched
• Firebase Cloud Messaging not calling FirebaseInstanceId

qwertz answers