After I/O Kabul Android summary

Transcript

1. After I/O Kabul
   Kotlin First/Android Q
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2. Who Am I?
   • Hadi Tok
   • Lead Android Developer @CitizenMe
   • Google Developers Expert on Android
   • Organizer at GDG Istanbul
   • https://haditok.com/
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3. Google I/O
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   • Organized by Google At Mountain View CA
   • Gathers developers from all around the world
   • New technologies developed by Google
   announced
   

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4. Google I/O 2019 What’s new on Android
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   • Kotlin First
   • Coroutines first
   • Jetpack Compose
   • Dark Mode
   • Gesture Navigation
   • Security and Privacy
   • CameraX
   • ViewBindings
   

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5. Kotlin First
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   • Kotlin became official language 2017 along with
   Java and C++
   • KTX Libraries
   • IDE Support
   • Documentation
   • Samples
   

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6. Kotlin First
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   • Kotlin became primary language 2019 over Java and
   C++
   • Feature support
   • IDE Support
   • More Documentation
   • More Samples
   

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7. How to get started with Kotlin
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   • http://try.kotlinlang.org
   • https://kotlinlang.org/docs/reference/
   • https://codelabs.developers.google.com/android-ko
   tlin-fundamentals/
   

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8. Corotutines First
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   • What are Coroutines?
   • Non-blocking
   • Asynchronous
   • Straightforward as plain synchronous code.
   

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9. Corotutines First
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10. Jetpack Coroutines support
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    • LiveData
    • ViewModel
    • WorkManager
    • Room
    

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11. Jetpack Compose
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    • Jetpack Compose is an unbundled toolkit designed
    to simplify UI development. It combines a reactive
    programming model with the conciseness and ease
    of use of the Kotlin programming language.
    

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12. Jetpack Compose
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    • Concise and Idiomatic Kotlin
    • Declarative
    • Compatible
    • Enable Beautiful Apps
    • Accelerate Development
    

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13. Jetpack Compose
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15. Dark Mode
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    • Can reduce power usage by a significant amount
    • Improves visibility for users with low vision and
    sensitive to bright light.
    • Easier to use a device in a low-light environment.
    

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16. Dark Mode
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    • Can reduce power usage by a significant amount
    • Improves visibility for users with low vision and
    sensitive to bright light.
    • Easier to use a device in a low-light environment.
    

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17. Dark Mode
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    • <br/>• <style name="AppTheme" parent="Theme.MaterialComponents.DayNight"><br/>

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18. Dark Mode
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    • Light - MODE_NIGHT_NO
    • Dark - MODE_NIGHT_YES
    • Set by Battery Saver -
    MODE_NIGHT_AUTO_BATTERY
    • System default - MODE_NIGHT_FOLLOW_SYSTEM
    

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19. Dark Mode Force Dark
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    • Easy way to implement dark mode
    • Intellegently converts theme to dark on Android
    Q
    • android:forceDarkAllowed="true"
    

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20. Gesture Navigation
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    • Unifies gestural navigation on Android Q
    • Swipe up from bottom navigates to home
    • Swipe left and right from edges navigates back
    

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22. Security&Privacy
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    • Jetpack Security Library
    • Location permission changes on Q
    • Apps won't be able to turn on/off the WiFi on Q
    • SYSTEM_ALERT_WINDOW permission is
    deprecated on Q, Use Chat bubbles instead.
    

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23. CameraX
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    • Unifies Camera library usage
    • Features like Portrait, HDR, Night, and Beauty
    • Able to take add ons
    • Works on 90% of devices
    

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24. CameraX
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    • Unifies Camera library usage
    • Features like Portrait, HDR, Night, and Beauty
    • Able to take add ons
    • Works on 90% of devices
    

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25. View Bindings
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    • Similar to DataBindings
    • No annotation processing so faster at compile
    

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26. Thank you
    Questions?
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