Examining the Simple Database app
In this chapter, we will focus on creating the NavigationView and populating it with four Fragment class instances and their respective layouts. In the next chapter, we will learn about and implement the database functionality.
The screens of the database app are as follows. Here is what our NavigationView layout looks like in all its glory. Note that many of the options and most of the appearance and decoration are provided by default when using the NavigationView Activity template.
Figure 26.2 – NavigationView layout
The four main options are what we will add to the UI. They are Insert, Delete, Search, and Results. The layouts are shown, and their purposes are described as follows.
Insert
The first screen allows the user to insert a person's name and their associated age into the database:
Figure 26.3 – Insert
This simple layout has two EditText widgets and a button....
