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Beyond the Hello World -Golf Scores

Beyond the Hello World -Golf Scores. Frank Xu Gannon University. Reference. Learn how to develop for Android, Beyond HelloWorld http://www.youtube.com/watch?v=rm-hNlTD1H0. main.xml. Layout of Main.xml. TextView = label (Java). Property ( Name,Values pair) .

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Beyond the Hello World -Golf Scores

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  1. Beyond the Hello World -Golf Scores Frank Xu Gannon University

  2. Reference • Learn how to develop for Android, Beyond HelloWorld • http://www.youtube.com/watch?v=rm-hNlTD1H0

  3. main.xml

  4. Layout of Main.xml

  5. TextView = label (Java)

  6. Property (Name,Values pair)

  7. How to change resource “hello” to “title”? • Change “hello” to “title” in string.xml • Change property value of Text from “@string/hello” to “@string/title” in main.xml

  8. Change size of TextView Px:pixle Dp:Density-independent Pixels. an abstract unit that is based on the physical density of the screen.  Sp: Scale-independent Pixels - this is like the dp unit, but it is also scaled by the user's font size preference.

  9. Add buttons Drag&drop

  10. Add button

  11. How to Change ID and Text

  12. Add More Components

  13. Mapping UI to XML

  14. Rearrange components Add LinearLayoutScorePanel Move up and down Rearrange components use up and down

  15. Main.xml again

  16. LayoutParams • Describes how big the view wants to be for both width and height. • FILL_PARENT • Renamed MATCH_PARENT in API Level 8 and higher • The view wants to be as big as its parent (minus padding) • WRAP_CONTENT • The view wants to be just big enough to enclose its content (plus padding)

  17. Layout Width

  18. Button Layout Take as much as space as possible

  19. New Look • Can you finish yours like this? • Hints • Scores • Gravity: center • Padding: 10sp • - weight: 1 • +weight:1 • 99 weight: none • OK weight: 0.5

  20. Test your UI

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