BUILDING LAYOUTS

VIEW GROUPS

View Groups are a collection of views. (Container for views)

There can only be one root view. So if we have more than one view, we need to put them in a view group

TYPES OF VIEW GROUPS

Linear Layout Relative Layout

LINEAR LAYOUT

It can arrange its children in a vertical column Notice that we are not limited to just one textview and one

imageview. We can have as many as we want.

LINEAR LAYOUT

It can also arrange its children in a horizontal row

RELATIVE LAYOUT

Also has its own rules on how to position its children within it. For Example

Relative to the parent Relative to t

RELATIVE LAYOUT

Relative to parent A child imageview aligned to the top of the parent A child textview aligned to the bottom of the parent

RELATIVE LAYOUT

Relative to other views

LINEAR LAYOUT

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_height="wrap_content" android:layout_width="wrap_content">

</LinearLayout>

WIDTH AND HEIGHT

Fixed width and height Wrap content Match parent

EVENLY SPACING OUT VIEWS

LAYOUT WEIGHT

Can be used to evenly distribute views. The higher the weight, the more space the view takes

EXAMPLES

RELATIVE LAYOUT

This will help you build even more flexible layouts

RELATIVE TO OTHER VIEWS

When positioning views relative to other views, you can constraints eg;

One view must be above the other Or one imageView must be to the left of another

PADDING VS MARGIN

QUIZ