Google’s Android is shaking up the mobile market in a big way. Hello, Android, 3rd Edition. Introducing Google’s Mobile Development Platform. By Ed Burnette. Hello, Android. Introducing Google’s. Mobile Development Platform, 3rd Edition. Ed Burnette. The Pragmatic Bookshelf. Raleigh, North Carolina Dallas, Texas. eBook Hello, Android Introducing Google’s Mobile Development Platform, 3rd Edition Ed Burnette The Pragmatic Bookshelf Raleigh, North Carolina Dallas.
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From that application, the user might invoke another thjrd cation, or another screen in the same application, and then another and another. The applications you create, of course, can be deployed on any Android devices. The first version displays database records in a TextView. The options for android: Let’s hope this will be more intuitive in future versions of Eclipse.
The only requirement is a basic understanding of programming in Java or a similar object-oriented language C will do in a pinch. Think of this as the tip of the Android iceberg.
Hello, Android (3rd edition): Introducing Google’s Mobile Development Platform
When designing your own program, I recommend trying stan- dard widgets and views first and then falling back to custom drawing only if that doesn’t work for you. Source code Errata Releases. The window manager will combine gurnette the dirty rect- angles at some point in the future and call onDraw again jello you. MapActi vi ty edution import com. Browser and map views can be embedded directly in your applications.
This behavior will be fine for 90 percent of all applications, so most developers will not have to worry about it. At build time all your resources get compiled into your application. That means that the book is now up-to-date for tablets such androi the Kindle Fire. Ed Burneet is amazing when it comes to teaching android developement. Android allows you to do that by using the WebView class. These are beyond the scope of this book, but if you need them for your program, consult the online documentation.
Linux provides the hardware abstraction layer for Android, allowing Android to be ported to a wide variety of platforms in the future. If you run this on a phone with no keyboard, D-pad, or trackball, press and hold the Menu key to get the soft keyboard to appear.
Now run the program again see Figure 3.
What do you use your mobile phone for? If there are zero moves, that means the burentte has done something wrong and needs to backtrack. This runs when the activity is about to go into the back- ground, usually because another activity has been launched in front of it.
View; i mport and roi d. For example, you eidtion add some fireworks when the player solves the puzzle or make the tiles spin around like Vanna White does. Pragmatic Bookshelf- Computers – pages.
The preferences Thitd can be used for more than just options; it can store any small stand-alone bits of information that go with your program. Cursor; import androi d. Here are a few things to keep in mind. Lists with This Book. When you need help, the hundreds of pages of reference material online go into more depth on all the classes and methods used here.
Path The Path bkrnette holds a set of vector-drawing commands such as lines, rectangles, and curves. To view the online documentation, open the docs subdirectory of your Android SDK Install directory, or point your browser to http: First, Android provides a full-featured web browser based on the WebKit open source project.
Procedural simply means in code. For more information, as well as the latest Pragmatic titles, please visit us at http: FontMetri cs ; import androi d.
We use the standard layouts provided by Android for individual items in the list and for the drop-down box you see when you select the spinner. On line 43, we use the created method to create a new MediaPlayer using the selected sound resource and call the start method to begin edotion it.
If you like books and love to build cool products, we may be looking for you. For what it’s worth Ahdroid seems to have great online reference anyway.
Hello, Android, 3rd Edition – O’Reilly Media
The final piece of the musical puzzle is the Music class, which will man- age the MediaPlayer class used to play the current music: In the Android version, you can change the tiles as often as you like without having to brush away all those pesky eraser shavings. Drawing and moving the selection Next we provide a way to move the selection by overriding the onKey- Down method: Chap- ter 4, Exploring 2D Graphics, on page 73 will use some of the graphics classes in the Android native libraries.
Since the circle was drawn in the clockwise direction Direction, CWthe text is also drawn that way. Rect; import androi d. Get your stopwatch ready. OnCl i ckLi stene r ; In the onCreate method, add code to call findViewByld to look up an Android view given its resource ID, and add code to call setOnClickLis- tener to tell Android which object to tickle when the user touches or clicks the view: Finally, on line 26, we create an instance of TranslateTask, giving it a reference to the Translate activity so it can call back to change the text, a string containing the original text, and the short names of the two languages selected in the spinners.