![]() ![]() By default, the ViewPager control will pre-load one TabViewItem on the left and on on the right. If this is not done, you will not be able to see the next TabViewItem contents during the swipe. This means that only one TabViewItem can be shown, but multiple TabViewItems need to be loaded to the side. Note (Android specific): The Android implementation uses a ViewPager control, which allows using the swipe gesture to navigate to the next or previous tab. When the user selects a new TabViewItem, we load the new item and unload the previous one. This means that only one TabViewItem can be shown at a given time and only one needs to be loaded. ![]() Note (iOS specific): The iOS implementation uses UITabBarController. However, there are some specifics for each platform (iOS and Android), which are described in the notes below. Respectively, the loaded and unloaded events will be fired when navigating between views. This means that every TabViewItem view will be loaded when it is shown and will be unloaded when it disappears. The general behavior of the TabView component is to load its items on demand. The TabView component provides several unique styling properties as shown in the example below. See the Working with Images article for information on how to add and reference your resource images. ![]() Note: If you have set the iconSource property on a TabViewItem, but are not seeing any icons next to the title, this might be because the icon is not present in your App_Resources folder. See the Styling section for more information. Currently, the directive also holds the property textTransform which controls the capitalization of the tab title text. The view however, is not so simple, therefore the directive uses the tag where tabItem attribute is set as view. Since title and iconSource are usually represented as text, TabView directive uses a small JSON object ( ) to define these properties easily in HTML. Actually, TabViewItem is a pretty simple object with just title, iconSource and view properties.
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