Android Layouts – An Introduction to Android Visual Development – Types of Views
Android Layouts – An Introduction to Android Visual Development – Types of Views
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android-layouts-slides
On Github vinc3m1 / android-layouts-slides
Android Layouts
An Introduction to Android Visual Development
Everything here is even better in the official documentation:
XML
Android Layouts are defined in XML
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<TextView android:id="@+id/text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello, I am a TextView" />
<Button android:id="@+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello, I am a Button" />
</LinearLayout>
There are graphical tools available...
But we're developers!
Types of Views
Views ViewGroups AdapterViewsViews
- TextView
- EditText
- Button
- Switch
- RadioButton
- CheckBox
- ImageView
- ImageButton
- SurfaceView
...
ViewGroupViewGroups
- FrameLayout
- LinearLayout
- RelativeLayout
...
AdapterViewAdapterView
- AbsListView
- ListView
- GridView
- AbsSpinner
- Spinner
Defining a Layout
Basic Layout definition:
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent" />