Android Programming Tutorials by M. Murphy

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By M. Murphy

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The Android SDK documentation will show a number of XML attributes you can manipulate to change the color, make the text boldface, etc. Further Reading You can learn more about XML layouts in the "Using XML-Based Layouts" chapter of The Busy Coder's Guide to Android Development. Similarly, you can learn more about simple widgets, like fields and buttons, in the "Employing Basic Widgets" chapter of the same book, where you will also find "Working with Containers" for container classes like LinearLayout.

In later tutorials, we will change the look of our rows to suit our own designs. If you then add a few restaurants via the form, it will look something like this: Figure 11. Our LunchList with a few fake restaurants added Extra Credit Here are some things you can try beyond those step-by-step instructions: 35 Adding a List • See what the activity looks like if you use a Spinner instead of a ListView. , for multiple restaurants in one place, such as a food court or mall). Further Reading Information on ListView and other selection widgets can be found in the "Using Selection Widgets" chapter of The Busy Coder's Guide to Android Development.

Try creating the RadioButton widgets in Java code, instead of in the layout. , supply them with text to display), then add them to the RadioGroup via addView(). • Try adding more RadioButton widgets than there are room to display on the screen. Note how the screen does not automatically scroll to show them. Then, wrap your entire layout in a ScrollView container, and see how the form can now scroll to accommodate all of your widgets. 26 A Fancier Form Further Reading You can learn more about radio buttons in the "Employing Basic Widgets" chapter of The Busy Coder's Guide to Android Development.

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