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Jak vyrobit aplikaci pro Android

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February 18, 2012
Programming
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Jak vyrobit aplikaci pro Android

Tutoriál z Android Dev Campu 2012 v Praze.

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petrnohejl

February 18, 2012
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Transcript

  1. Tutoriál: Jak vyrobit aplikaci pro Android

  2. Android Dev Camp 2012 Petr Nohejl @petrnohejl www.petrnohejl.cz

  3. Co budeme dělat?

  4. Naučíme se… 1) Založit nový projekt 2) Vytvářet aktivity 3)

    Používat resources 4) Navrhovat GUI

  5. Budeme potřebovat… • Znalosti jazyka Java • Eclipse & Android

    SDK • Androidí zařízení

  6. 1. Nový projekt

  7. Nový projekt v Eclipse… • Build SDK target • Package

    name • Minimum SDK version

  8. Struktura projektu… • /src • /res • /gen • /assets

    • manifest

  9. Manifest… • Version • Install location • Min SDK version

    • Target SDK version • Permissions • Activities

  10. 2. Aktivity

  11. Aktivita… 1 aktivita =

  12. Životní cyklus… onCreate() onResume() Activity running… onPause() onDestroy()

  13. Vyzkoušej si… Log.d(" Foo ", " Bar "); a sleduj

    LogCat (DDMS)

  14. 3. Resources

  15. Resources… • Xml formát • Resource id (R.id, R.layout, R.string,

    R.drawable, R.color, …) • Problémy s resources? Eclipse menu > Project > Clean…

  16. Typy resources… • /layout • /values • /drawable • /menu

  17. Qualifiers… • /drawable-hdpi (-mdpi, -ldpi, …) • /values-cs (-en, -de,

    …) • /layout-large-land • Priority…

  18. Typy values… • <string /> • <dimen /> • <color

    /> • <style />

  19. Rozměry… • dp (density independent pixels) • sp (scale independent

    pixels) • px (pixels)

  20. 4. GUI

  21. Layouts… <LinearLayout />

  22. Layouts… <RelativeLayout />

  23. Layouts… • <FrameLayout /> • <TableLayout /> • <AbsoluteLayout />

    • <ScrollView />

  24. Views… • <TextView /> • <ImageView /> • <EditText />

    • <Button /> • <ListView />

  25. Co dál?

  26. Vývojářská příručka… • http://d.android.com/guide/

  27. Díky a nashledanou!

  28. None