The classes in the Qt QML module enable QML objects to be loaded and manipulated from C++, and the nature of QML engines integration with Qts meta object system enables C++ functionality to be invoked directly from QML. >CloseView-> Rectangle of tab2 has been destructed -> Rectangle of tab1 has been destructed ->tab2 has been destructed!!->tab1 has been destructed!!->tabview has been destructed!! //First destroy the widege in the tab, then destroy the tab, and finally destroy the tabviewĬomponent.onCompleted:Ĭomponent.onDestruction: console. QML is designed to be easily extensible through C++ code. >Click tab2->onCurrentIndexChanged!!currentindex=1!!! >Click tab1->onCurrentIndexChanged!!currentindex=0!!! >onCurrentIndexChanged!!currentindex=1!!!->currentIndexchange slot function called after being constructed >Click tab2->Rectangle of tab2 has been finished->When a tab is displayed for the first time, its internal controls are built Rectangle of tab1 has been finished -> // When it is displayed for the first time, currentIndex:0 is specified, and the controls in tab1 are generated first Tab2 has been finished - >tab1 has been finished - >tabview has been finished -> // Create tab first, empty tab Import Statement: import QtQuick.Controls 1.4. The output sequence of the following code: A control that allows the user to select one of multiple stacked items. Recently, TabView is used under qt5.5, as follows.ġ) The currentIndex variable is very useful, it corresponds to the currently displayed tab, and the onCurrentIndexChanged function is triggered when its value changes.Ģ) When loading the following qml file, for example, using a QquickView to display, tab1 and tab2 will be created, and will not be destroyed until the entire View is closed.įor the rectangle defined in the tab, when the tab is displayed for the first time, it will be constructed and will not be destroyed until the View is closed. The sky south of the colorful clouds is so blue, and the water falling from the sky is so clear.
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