Introduction to Android development

Transcript

1. 1.

   WHAT’S UP WITH University Malta Danny Preussler @PreusslerBerlin

2. 2.

   WHAT DO I KNOW OF GAMES?

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   WHO’S THAT GERMAN?

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   WHAT’S A DEVELOPER EXPERT?

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   WHAT’S A DEVELOPER EXPERT?

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   2009 ANDROID

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   WHATS UNDER THE HOOD?

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   None
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   WRITE ANDROID IN

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    TOOLS FOR NATIVE APPS Powered by

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    BUILDING BLOCKS •Activities •Services •Broadcasts

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    SERVICE

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    ACTIVITY

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    ACTIVITY Activity Activity Intent View View View

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    INTENT • startActivity( new Intent(getContext(), MainActivity.class)); • startActivity( new Intent(ACTION_VIEW,

    Uri.parse(uri)));
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    ACTIVITY Activity Activity Activity Activity

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    VIEWS • Extend the class View • Defined by Code

    or XML
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    VIEWS • Grouped in Layouts/Viewgroups (old)

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    VIEWS <TextView style="@style/Label10" android:layout_width="wrap_content" android:layout_height="wrap_content" android:paddingTop=”5dp" android:paddingBottom=”10dp" android:paddingStart=”6dp" android:paddingEnd=”6dp" android:text="show

    this" android:textAllCaps="true" />
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    SOOO 2016 • Material Design • Firebase • ConstraintLayout •

    Databinding • RxJava
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    RESOURCES

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    RESOURCES png files

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    None
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    DRAWABLES • PNG • XML • WEBP • Vector drawables

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    RESOURCES Layout xml

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    CONFIGURATIONS •Configuration change can be: •Rotation •Any resize i.e. split

    screen •Language change
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    RESOURCES combinable

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    RESOURCES <!-- captions, menu, buttons --> <string name="settings">"Einstellungen"</string> <string name="action_overflow_menu">"Mehr"</string>

    <string name="action_settings">"Einstellungen"</string> <string name="action_search">"Suche"</string> <string name="action_share">"Teilen"</string>
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    VIEWS <TextView style="@style/Label10" android:layout_width="wrap_content" android:layout_height="wrap_content" android:paddingTop="@dimen/settings_page_small_text_padding_top" android:paddingBottom="@dimen/settings_page_small_text_padding_bottom" android:paddingStart="@dimen/settings_page_padding_horizontal" android:paddingEnd="@dimen/settings_page_padding_horizontal" android:text="@string/dev_tve"

    android:textAllCaps="true" />
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    ANIMATIONS myView.animate() .translationX(100) .alpha(1f) .duration(100) .start()

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    ANIMATIONS <?xml version="1.0" encoding="utf-8"?> <set xmlns:android="http://schemas.android.com/apk/res/android" android:fillAfter="true" > <alpha android:duration="1000"

    android:fromAlpha="0.0" android:toAlpha="1.0" /> </set>
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    RESOURCES

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    ANIMATIONS SpringAnimation FlingAnimation

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    TRANSITIONS Transition explode = new Explode(); TransitionManager.beginDelayedTransition( recyclerView, explode);

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    THE WAY OF A NOTIFICATION • Sent • Wakes up

    app • App retrieves content • Might load more from backend • Shows notification w/o actions • Actions/clicks trigger intent • Show activity
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    ANDROID IS MORE THAN PHONE

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    None
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    WHAT’S UP WITH University Malta Danny Preussler @PreusslerBerlin