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Android Core Concepts

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In this Presentation I have added significance of Android concepts which will be useful for the beginners to how to use those features as well as for developers. – PowerPoint PPT presentation

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Title: Android Core Concepts


1
Android core concepts
http//www.peridotsystems.in/
2
Android core concepts
  • Having a basic understanding of the Androids
    core concepts it will help you to make different
    topics.
  • They are
  • Apps and APK files
  • Activities
  • Fragments
  • Views and view groups
  • Layout XML files
  • widgets
  • Sensors

3
Apps and APK files
  • The android app is an application which is
    present in APK (Android application package).
  • Thus APK file contains compiled java code, texts
    and images of Android application.

4
Activities
  • Thus Android Activity is a GUI component , it is
    very much complicated work in doing smart phones
    because it does not have enough space when
    compare to desktop.
  • But in android app you can arrange list of
    websites , it will act as a desktop and you can
    easily view many websites .

5
Fragments
  • Fragments is a total user interface and it only
    takes up the part of the screen
  • Fragments are mainly used in inside activities
  • Fragments are typically contains views and
    viewgroups inside them
  • It can be reused in different activities

6
Layout XML files
  • Activities , fragments and some view groups can
    use XML files to define their layout and contents
  • XML files will help you to find out what GUI
    component or fragment contains , as well as
    styling of GUI

7
widgets
  • Widgets are implemented and packaged as an part
    of application
  • Thus viewgroups, fragments ,activities and
    widgets which can live on the home screen of the
    Android Device

8
Sensors
  • Android devices typically have a set of sensors
    built in which you can access from Android
    applications
  • For example GPS is act as a sensor in many smart
    phones
  • you can get access to GPS from Android
    applications.

9
Communication
  • NO.84/8 Venkatrathinam Main street , LB road ,
    Adyar , chennai-600020
  • Contact 9566293201
  • http//www.peridotsystems.in/
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