Develop Reference

Is there any layout orientation in android like this

The linear layout in android is like this...
Layout available
But I want a layout that will move the inner widget down instead of forward like this
Layout I want

there is no layout in Android, which can do such replacing, but you can use Flexbox lib from Google

If you want to only use linear layout then you can do nesting of 2 linear layout
in 1 : orientation will be vertical, and horizontal in other
To make it more easy, use relative/constraint layout.

Relative layout android doesn't work correctly

Does anyone knows why relative layout is not working and whenever i apply it all the element appear at the top of the layout.

You have to apply rules for your views inside like
android:layout_above
Or
android:layout_below
Check out constraint layout is a new layout where you can set constraints by hand

RelativeLayout fill parent not available

I am using Android Studio 2.3.3, the default layout is ContraintLayout. I was able to find the way how to change to RelativeLayout changing it in the XML code.
My problem is that the fill parent is not available then for each item, there is "none" instead. However match_wrap & fill_parent are available.
Can you help?

If you want to fill the screen with the relative layout you can use
android:layout_width="match_parent"
android:layout_height="match_parent"

fill_parent is now Deprecated you can refer this here Android Docs Use match_parent instead. To change ConstraintLayout to RelativeLayout you can change the Root layout while creating the file or Directly replace the ConstraintLayout to RelativeLayout in XML also(Studio Handles it well).

Edit children in scrollview where scrollview is a child of relativelayout in android studio

In my xml hierarchy, I have the root element as a RelativeLayout and then a Scrollview as a child. That ScrollView then has a RelativeLayout with views inside it.
My problem is that I cannot edit the contents in the ScrollView as the design view of Android Studio doesn't show the entire ScrollView. I've tried the toggle viewport render mode button but that doesn't change anything (note: my ScrollView's fillviewport is true as well.
Is there a way I can see everything in my ScrollView where the ScrollView is a child of a RelativeLayout in Android Studio's design view?

I have this issue as well.
If you have a view hierarchy like...
RelativeLayout (root)
--> ScrollView
--> RelativeLayout
--> Views (e.g. Buttons, TextViews, etc.)
...I change the above layout to something like...
RelativeLayout (root)
--> Include
...where my include tag is referencing another XML layout...
ScrollView
--> RelativeLayout
--> Views (e.g. Buttons, TextViews, etc.)
In Android Studio's preview, the first XML layout with the <include> tag should show (part of the complete) layout on the device.
The second XML layout, with the ScrollView as its root should show you all of the Views.
As far as I know, there is no other way around this, unfortunately - and I would love to see an alternative solution if there is one.

Android: How to change Relative Layout to Scroll Layout

Hello i have an Relative Layout in Android, with EditTexts, TextViews, one Spinner and RadioButtons. It's a lot of things for only one screen, so i need to change for a ScrolView. When i try add the line in the first line and on the last Row, I have problems.
How can i add a scroll on my screen without lose all the layout I built so far?

so i need to change for a ScrolView
You do not need to change "for a ScrolView". You need to wrap your RelativeLayout in a ScrollView.
How can i add a scroll on my screen without lose all the layout I built so far?
Put a ScrollView around your RelativeLayout:
<ScrollView>
<RelativeLayout>
<!-- existing stuff here -->
</RelativeLayout>
</ScrollView>

As #CommonsWare has said, you can just wrap your current layout with a ScrollView.
Just keep in mind that a ScrollView must have only one child.