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NavigationButton

<navigationButton> is a UI component that provides an abstraction for the Android navigation button and the iOS back button.

Extends <actionItem>.

See also:

• Official top-level documentation
• Detailed API specification
• <actionBar>
• <actionItem>

---

/** @jsx createElement */

<actionBar title="My App">
  <navigationButton
    text="Go back"
    android={{
      systemIcon: "ic_menu_back"
    }}
    onTap={goBack}
  />
</actionBar>

Props

Name	Type	Description
text	string	(iOS-only) Sets the text of the button.
android.systemIcon	string	(Android-only) The icon to be shown in the button. You can specify any system icon whose name begins with the ic_ prefix. For a complete list of the available icons, see the R.drawable Android class.
onTap	(args:EventData) => void	Emitted when the NavigationButton is tapped.

Native component

Android	iOS
android.widget.Toolbar	UINavigationItem