The default stretch factor is 0, i.e giving the widget a minimum of space. The stretch parameter is used to compute a suitable size for the given widget as the status bar grows and shrinks. void QStatusBar:: addWidget( QWidget * widget, int stretch = 0)ДЄdds the given widget to this status bar, reparenting the widget if it isn't already a child of this QStatusBar object. See also insertPermanentWidget(), removeWidget(), and addWidget().

It is is located at the far right of the status bar. Permanently means that the widget may not be obscured by temporary messages. void QStatusBar:: addPermanentWidget( QWidget * widget, int stretch = 0)ДЄdds the given widget permanently to this status bar, reparenting the widget if it isn't already a child of this QStatusBar object. QStatusBar:: ~QStatusBar()Дestroys this status bar and frees any allocated resources and child widgets. See also messageChanged(), currentMessage(), and clearMessage(). Note that showMessage() is called to show temporary explanations of tool tip texts, so passing a timeout of 0 is not sufficient to display a permanent message.

If timeout is 0 (default), the message remains displayed until the clearMessage() slot is called or until the showMessage() slot is called again to change the message. Hides the normal status indications and displays the given message for the specified number of milli-seconds ( timeout). void QStatusBar:: showMessage(const QString & message, int timeout = 0) See also showMessage() and clearMessage(). The new temporary message is passed in the message parameter which is a null-string when the message has been removed. This signal is emitted whenever the temporary status message changes. void QStatusBar:: messageChanged(const QString & message) See also currentMessage(), showMessage(), and removeWidget(). Removes any temporary message being shown. The result is that the status bar text color on a NavigationPage can be adjusted to match the luminosity of the navigation bar.Member Function Documentation QStatusBar:: QStatusBar( QWidget * parent = nullptr)Д¬onstructs a status bar with a size grip and the given parent. In addition, the GetStatusBarTextColorMode method can be used to retrieve the current value of the StatusBarTextColorMode enumeration that's applied to the NavigationPage. MatchNavigationBarTextLuminosity вЂ“ indicates that the status bar text color should match the luminosity of the navigation bar.DoNotAdjust вЂ“ indicates that the status bar text color should not be adjusted.The NavigationPage.SetStatusBarTextColorMode method, in the namespace, controls whether the status bar text color on the NavigationPage is adjusted to match the luminosity of the navigation bar, with the StatusBarTextColorMode enumeration providing two possible values: The NavigationPage.On method specifies that this platform-specific will only run on iOS. SetStatusBarTextColorMode(StatusBarTextColorMode.MatchNavigationBarTextLuminosity) SetStatusBarTextColorMode(StatusBarTextColorMode.DoNotAdjust)

It's consumed in XAML by setting the NavigationPage.StatusBarTextColorMode attached property to a value of the StatusBarTextColorMode enumeration: ДЄlternatively, it can be consumed from C# using the fluent API: using This platform-specific controls whether the status bar text color on a NavigationPage is adjusted to match the luminosity of the navigation bar.

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