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Learning MIT App Inventor: A Hands-On Guide to Building Your Own Android Apps by Mark Sherman, Derek Walter

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Building Apps with Multiple Screens

The apps we have built to this point have all used a single screen. Yet most apps that you use likely have multiple screens. This facilitates separating different groups of features, without needing to have all the content crammed onto one page.

However, it is worth spending some time to master this. If not programmed properly, multiple screens can become a source of irritation for users. Programming multiple screens also can be tricky, and finding errors while using multiple screens can be cumbersome. At a few points, you, the programmer, can’t undo changes, so mistakes will require you to redo a significant amount of work. Carefully consider the information in this chapter before you design an app that uses ...

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