![]() Now, you can have a much simpler approach - have the TabView as a root and place a Frame inside the tab content. Previously, if you wanted to navigate deep inside one of the tabs - you had to create a similar page (with the whole TabView definition inside it) and navigate to it (this is because each navigation was swapping the whole screen content). This effectively means that the Frame will swap different Pages inside the same SideDrawer instance (effectively reusing it). So now you can set the SideDrawer as the application root and put the Frame inside its main content. In the NativeScript 4.0 you have control over which element should be the root of the app and where (and if) to put a Frame which will host your Pages. OK, that was oversimplified and not entirely correct. TL DR: NativeScript 4.0 can share content between pages - no RAM or CPU cycles waste and better performance ![]() As a result the app creates a new instance of the side drawer every time it navigates, meaning more RAM used, more CPU cycles spent and slower performance. Since each time the app navigates, all of its content gets replaced, that means that we have to add a side drawer to each page. ![]() The problem starts when you need to add a SideDrawer (or a TabView) for Navigation. I am on page A, so the main Frame contains A, then I navigate to page B, and now the main Frame contains B. Because this Frame is the root of the app, it is always full screen and so are all the Pages loaded inside it.Īt first, this doesn't sound like a big deal. It hosts the pages when navigiating to them). In previous versions of NativeScript we would always have a single Frame in the root of the app (Note: The Frame is the element responsible for navigation. TL DR: Old NativeScript can't share content between pages - more memory required, more CPU usage and slower performance Making it more flexible (hence the title) and a lot more intuitive. Default value is false.One of the most significant changes we introduced in NativeScript 4.0 is the way we interact with the main Frame of the app. Removes the border on Android and the translucency on iOS. import * as React from "react" Adding buttons import * as React from "react" Hello Title View One Two Three Setting an app icon for Android import * as React from "react" Props Name To remove this styling from your app, you can set the flat property to true. In addition to the border, on iOS devices a translucency filter is also applied over the. See: Node Roles Using a title import * as React from "react" Using a custom title view import * as React from "react" Removing the borderīy default, a border is drawn at the bottom of the. Take care not to miss the nodeRole property that we set in the following examples, to see which children (and grandchildren) require which roles. React NativeScript provides a nodeRole property so that you can make it explicit what role each given child serves. navigation button, title view, or action item). This component is the NativeScript abstraction for the Android app bar and the iOS navigation bar.ĪctionBars are a complex component that can contain child components serving different roles (e.g. ![]() Is a UI component that provides a toolbar at the top of the activity window. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |