What should be in the homepage of a mobile app?
Every mobile homepage needs a logo right at the top. A perfect logo explains exactly what you do. Whatever products you sell need clear exposure on the homepage. The best way is to clean up the homepage, focusing users' eyes on just a single image and text piece that explains it all.
What is the layout of a mobile app?
A layout defines the structure for a user interface in your app, such as in an activity. All elements in the layout are built using a hierarchy of View and ViewGroup objects. A View usually draws something the user can see and interact with.