Though it's been stated many times it's considered the best programming practice to create UIs in XML rather than in Java, there are still times when using code is the better option. This is especially true if you wanted a menu item to be visible (or enabled) based on some external criteria. Menus can also be included in resource folders, but there are times when you need code to perform the logic of which resource to use. One example might be if you wanted to offer an upload menu item only if the user is logged in to your app.
In this recipe, we will create and modify the menu only through code.
Create a new project in Android Studio and call it RuntimeMenu
using the default Phone & Tablet
option. Select the Empty Activity
option when prompted to add an activity. Since we will create and modify the menu completely in code, we will not need to create ares/menu
directory.