flutter
  1. flutter-tooltip
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Flutter Tooltip

Flutter provides a Tooltip widget that can be used to display a message when users long-press, hover, or tap on an element. Tooltips are a great way to provide additional information or context to UI elements without cluttering the visual design.

Syntax

Tooltip({
  Key? key,
  required Widget child,
  String? message,
  EdgeInsetsGeometry? padding,
  TextStyle? textStyle,
  double? height,
  EdgeInsetsGeometry? margin,
  bool preferBelow = true,
  double? verticalOffset,
  bool excludeFromSemantics = false,
  double? decoration,
  bool waitDuration,
  bool showDuration,
  bool custom,
  Duration? waitDuration,
  Duration? showDuration,
  bool? enableFeedback,
})

Example

Tooltip(
  message: 'Save',
  child: IconButton(
    icon: Icon(Icons.save),
    onPressed: () {
      // Perform save operation
    },
  ),
);

In this example, we are creating a Tooltip widget that contains an IconButton. When the user hovers over or long-presses the IconButton, a message "Save" will be displayed in the tooltip.

Output

The output of this example will be an IconButton with a Tooltip that displays the message "Save" when the user hovers over or long-presses the icon.

Explanation

The Tooltip widget provides a non-intrusive way to display additional information or context to UI elements. The message property is used to specify the text that should be displayed in the tooltip. Other properties can be used to customize the appearance and behavior of the tooltip.

Use

Tooltips can be used in various scenarios, such as:

  • Providing additional information about a UI element
  • Explaining the purpose or function of a button or icon
  • Displaying error messages or warnings when users interact with a UI element

Important Points

  • Tooltips can be customized using various properties such as message, textStyle, margin, and verticalOffset.
  • To reduce clutter, tooltips should only be used when necessary and should not be used to display too much information.
  • Tooltips can be disabled or enabled using the enableFeedback property.

Summary

Tooltips are a useful widget provided by Flutter for displaying additional information or context to UI elements. They can be customized using various properties and can be triggered by long-press, hover, or tap gestures. Care should be taken to ensure that tooltips are used judiciously and do not clutter the visual design.

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