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Google Developers Study Jam: Android for Beginn...

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April 03, 2016
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Google Developers Study Jam: Android for Beginners. Lesson 2

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ROYCE MARS

April 03, 2016
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Transcript

  1. Google Developers Study Jam Android for Beginners. Lesson 2 Constantine

    Mars Co-Organizer @ GDG Dnipropetrovs’k Senior Developer @ DataArt [email protected] +ConstantineMars

  2. Agenda • Enroll to Jam: https://www.udacity.com/account/affiliate/GoogleStudyJams • Go to the

    course: https://www.udacity.com/course/android-development-for-begi nners--ud837 • Learn • Make Practice Set 2 and send to [email protected] with subject “Practice Set 2”

  3. Lesson 2A: Making an App Interactive

  4. New project: Just Java

  5. Stages of development

  6. Stages

  7. activity_main.xml

  8. Preview

  9. Layout

  10. Creating an activity

  11. Activities

  12. Activities

  13. File types

  14. None

  15. Comments

  16. Bind method in xml

  17. Set text programmatically

  18. Test count

  19. Arithmetic expressions

  20. Second TextView

  21. Auto-import

  22. Prototyping calculations

  23. Variables

  24. Variables

  25. Data Type

  26. Variable in code

  27. Variable Name https://docs.oracle.com/javase/tutorial/java/nutsandbolts/variables.html

  28. Assignment operator

  29. Sum up

  30. Declaring numberOfCoffees variable

  31. Crash

  32. Crash

  33. Compilation error

  34. Make app crash: rename onClick method name

  35. DDMS, LogCat, Read Logs

  36. Fix the error

  37. Adding more controls

  38. Test it

  39. Debug. Breakpoints

  40. Debugging

  41. None

  42. Debugging

  43. None
  44. None
  45. None
  46. None
  47. None
  48. None
  49. None
  50. None
  51. None
  52. None

  53. Variable Scope

  54. Global (class) variable

  55. .decrement() implementation

  56. Lesson 2B: Making an App Interactive

  57. Resources http://androidweekly.net/ https://www.materialup.com/ http://www.google.com/design/spec/material-design/introduction.html https://github.com/udacity/Just-Java Udacity course on Git: https://www.udacity.com/course/how-to-use-git-and-github--ud775

  58. Changing layout

  59. Nested Viewgroups

  60. Examples

  61. Designing interface

  62. Designing interface

  63. None
  64. None
  65. None

  66. String

  67. String variables

  68. Escape sequence

  69. Concatenation

  70. Concatenation

  71. Concatenate string with int

  72. Alittle bit more complicated

  73. Practice Set 2

  74. None
  75. None

  76. Score Counter

  77. One Team View

  78. Two Team Views

  79. Extra: try to avoid duplication of xml

  80. Reset button

  81. Advice: Make an App Than May Save Somebody’s Life

  82. See you on certification ceremony :) Study Jam: Android for

    Beginners Constantine Mars Co-Organizer @ GDG Dnipropetrovs’k Senior Developer @ DataArt [email protected] +ConstantineMars