Creating layouts is a lot of work! In this chapter you learned how to use Eclipse to create an Android layout file that is the user interface for an app activity. Development of a layout requires use of both the graphical editor and modification of the associated XML to get the exact design you want. Experimentation is often the key to getting the layout to look the way you want it to.
Intents are used to switch between
Activities and sometimes pass data to those
Activities. You learned how to use
Intents to implement a navigation bar that allows the user to move between different
Activities in your app.
Finally, you learned how to use
Fragments to implement a custom dialog window. You also learned how to display the custom dialog and ...