strdulate
发表于 2025-3-25 04:11:20
I+D for Smart Cities and IndustryEvery GUI toolkit has some basic widgets: fields, labels, buttons, and so forth. Android’s toolkit is no different in scope, and the basic widgets provide a good introduction to how widgets work in Android activities.
Cardioplegia
发表于 2025-3-25 07:36:28
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corpuscle
发表于 2025-3-25 14:03:33
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易受骗
发表于 2025-3-25 16:03:05
Wolfgang Wagner,Jürgen SchneiderThe humble ListView is one of the most important widgets in all of Android, simply because it is used so frequently. Whether choosing a contact to call, an e-mail message to forward, or an e-book to read, ListView widgets are employed in a wide range of activities. Of course, it would be nice if they were more than just plain text.
遍及
发表于 2025-3-25 20:13:18
Jürgen Schneider,Wolfgang WagnerLike applications for the desktop and some mobile operating systems, Android supports activities with application menus. Most Android phones have a dedicated menu key for popping up the menu; other devices offer alternate means for triggering the menu to appear, such as the onscreen button used by the Archos 5 Android tablet.
SEEK
发表于 2025-3-26 03:53:41
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充气球
发表于 2025-3-26 04:30:42
The Big PictureAndroid is everywhere. Phones. Tablets. TVs and set-top boxes powered by Google TV. Soon, Android will be in cars and all sort of other places as well.
noxious
发表于 2025-3-26 12:05:54
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ABIDE
发表于 2025-3-26 15:00:42
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gentle
发表于 2025-3-26 19:01:52
Examining Your First ProjectThe previous chapter stepped you through creating a stub project. This chapter describes what is inside of this project, so you understand what Android gives you at the outset and what the roles are for the various directories and files.