SingleChildScrollView in Flutter - Cheat Sheet & Quick Revision

Recall & Review

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What is SingleChildScrollView in Flutter?

SingleChildScrollView is a widget that allows its single child to be scrollable when it overflows the available space.

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Why use SingleChildScrollView instead of a ListView?

SingleChildScrollView is for making a single widget scrollable, useful for small content. ListView is optimized for large or infinite lists.

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How do you make a column scrollable in Flutter?

Wrap the Column inside a SingleChildScrollView. This lets the column scroll if its content is too tall.

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What happens if the child inside SingleChildScrollView is smaller than the viewport?

The child will not scroll because it fits inside the available space. The scroll view only scrolls when content overflows.

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How can you control the scroll direction in SingleChildScrollView?

Use the scrollDirection property. Set it to Axis.vertical (default) or Axis.horizontal to scroll vertically or horizontally.

What type of child does SingleChildScrollView accept?

A A single child widget

B Multiple children widgets

C Only text widgets

D Only images

SingleChildScrollView accepts only one child widget, which it makes scrollable if needed.

Which property controls the scroll direction in SingleChildScrollView?

A direction

B scrollAxis

C scrollDirection

D axisDirection

The scrollDirection property sets vertical or horizontal scrolling.

If the content inside SingleChildScrollView fits the screen, what happens?

A It scrolls anyway

B It does not scroll

C It shows an error

D It crashes the app

The scroll view only scrolls when content is larger than the viewport.

Which widget is better for long lists instead of SingleChildScrollView?

A Stack

B Container

C Row

D ListView

ListView is optimized for long or infinite scrolling lists.

How do you make a Column scrollable?

A Wrap it in a <code>SingleChildScrollView</code>

B Wrap it in a <code>Row</code>

C Wrap it in a <code>Container</code>

D Wrap it in a <code>Stack</code>

Wrapping a Column in SingleChildScrollView makes it scrollable.

Explain how SingleChildScrollView works and when you would use it in a Flutter app.

Think about making a screen scrollable when content is too tall.

Describe the difference between SingleChildScrollView and ListView.

Consider when to use each widget for scrolling.