Cheat Sheet For Flutter. GitHub Gist: instantly share code, notes, and snippets. Creates a widget that avoids operating system interfaces Tool windows - Project view. Flutter Cheat Sheet by cheatflutter - Cheatography.com Created Date.

1. All Widgets In Flutter

Row widget in Flutter uses to display the multiple child widgets in horizontally. Row widget accepts an array of child and you can add any no of widgets.

But when using a row widget there are some tips you need to remember

1. Row widget is not a scrollable widget
2. Row widget cannot have a more widget than it can show in the available room and it consider as an error.

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• In Flutter, it takes only a few steps to put text, an icon, or an image on the screen. Select a layout widget. Choose from a variety of layout widgets based on how you want to align or constrain the visible widget, as these characteristics are typically passed on to the contained widget.

The row adjusts its size based on the child content. Therefore you can control the height of the row by controlling the height of the child widgets.

If you want to add space between child widget inside a row there are multiples ways to do that.

You Can simply add a SizedBox to add space between widgets.

Adding Spacer widget between the two widgets will also make a space between those widgets. It will take all the available space and align other widgets to the left corner and right corner

There is no direct property to set the background colour to Row widget. But you can wrap row inside a Container and add a background colour to the container

Row normally takes available space and we can control that by wrapping inside a Container or SizedBox widget. You can wrap the Row inside the Container and add width to the container. Then the Row will take the same width as a Container

If you added a widget which can’t fit into the current frame, it will show an error with the yellow strip by saying overflow. This happens because the row widget is not scrollable.

There are mainly two solutions for that.

1. If you need to show all items in a horizontal row you must use ListView instead of Row
2. If you want to move an item to next row you can use Wrap widget instead of row widget

The main axis of the Row widget is x-axis( horizontal way). There are multiple ways to align in the main axis.

Align all children to close to the start of the main Axis. This start position identify based on the text direction. If you set textDirection to TextDirection.rtl it will consider start position as right instead of left.

Align all children to end of the main axis. End position identifies base on textDirection.

Place space evenly between the children and also half of the space before and after the first and the last child

Place space evenly between the children as well as space before and after the first and last child

In the Row widget vertical direction consider as the cross axis. There are multiple properties available to align in Cross Axis.

This will place the children with their start edge align with the start of the cross axis. verticalDirection property can use to specify the direction whether from down to top or top to down

This will place the children to the end of the cross axis.

This will place the children to align their center to the middle of cross axis

Place children alone cross axis to match baseline. When you use baseline you has to set textBaseline property also.

All Widgets In Flutter

I hope you get a better idea about row widget and how to use each property. If you have any question please comment down below