view

问题 I'm trying to create a 'card flip' animation between two Views: View 'A' is a CardView within a LazyVGrid View 'B' is a custom modal overlay view The LazyVGrid and View 'B' are together in a ZStack Specifically, the ContentView is organized like so: var body: some View { ZStack { NavigationView { ScrollView { LazyVGrid(columns: columns, spacing: 10) { ForEach(model.events, id: \.self) { event in SmallCardView(event: event) .opacity(!showModal || event != modifiableEvent ? 1.0 : 0.0) } } } }

问题 I trying to design navigation menu, I have 3 Items like this: Dashboard Pages List Add Articles List Add Now I want to bold Pages when user is in this section, and if is in Add page I want bold both Pages and Add my routes.php is : Route::group(array('prefix' => 'admin', 'before' => 'auth.admin'), function() { Route::any('/', 'App\Controllers\Admin\PagesController@index'); Route::resource('articles', 'App\Controllers\Admin\ArticlesController'); Route::resource('pages', 'App\Controllers\Admin

问题 I have to implement a banner according to the following designs: The complexity here is in the shadow of the round logo, the shadow of the logo circle is the continuation of the shadow of the rectangular card of the banner. The border of the shadow is outlined in the following image: Of course the shadow shouldn't be casted on the surface below the top side of the card. Also the logo center has some offset from the border of the card. How can I achieve this effect? Standard android shapes

问题 I have a custom view component. I used it in either fragment or activity. I would like to know if there's a callback when it's destroyed from fragment/activity? 回答1: View does not have a callback (except finalize() , but I don't think that's what you're asking for). View has onDetachedFromWindow() when it is removed from the screen, but this is not related to it being destroyed -- it could be attached again, which will call onAttachedToWindow() . Fragment has onDestroyView() , which may be

问题 Why some people make it duplicate? I I said that was my question... First, I own this question and now I want to show a better example of my question. Honestly, I didn't try the answer yet because I'm curious is there anyway to solved this by code? Well, is it even possible? Besides, using an image as a background to solve this would be a problem, no? I mean, the user's phone is not always has the same screen size. Here's an example of the idle state of my home screen. I got header with

问题 I'm trying to make something similar to google/apple maps screen in flutter. I just started experimenting in Flutter and I have a hard time understand that "Draggable widget". Could someone give me example code how they made their slide-up view, I can learn from? I can't find any. 回答1: Draggable (and DragTarget) is not used for what you call slide-up view slide-up view , from the android world, is for bottom aligned modals. Draggable is to transfer data using Drag&Drop. In flutter, bottom

问题 I am storing a Int value as State in my View. When I press a button the Int increase by one. This is working fine when I print my int value. I have now a ForEach loop, which iterates based on this Int. When I set my State on 2 by default it works fine at the beginning. However, when I increase that Int my ForEach is not called again. I understand that State will reload my actual view. Does it only load specific parts? Here I declare my State: @State var s_countVenues : Int = 2 This is the

问题 I am storing a Int value as State in my View. When I press a button the Int increase by one. This is working fine when I print my int value. I have now a ForEach loop, which iterates based on this Int. When I set my State on 2 by default it works fine at the beginning. However, when I increase that Int my ForEach is not called again. I understand that State will reload my actual view. Does it only load specific parts? Here I declare my State: @State var s_countVenues : Int = 2 This is the

问题 looking something similar to what is asked in this Q.... How to display ListView on top of (over the) other items in Xamarin Forms? been playing about with grids and stacklayouts and cant seem to get the listView of the searchBar to appear on top of the other list views (the other list views contains the products searched for) so the search bar listview results should appear over the buttons, and other lists <content> <StackLayout> <StackLayout> <SearchBar Placeholder="Search..." TextChanged=

问题 I am trying to programmatically set / or change the embedded View Controller inside a Controller View . I have 3 different View Controllers, that I would like to show in the Container View, all depending on if the user is logged in or not. I have looked around and tried a bunch of code, I found one that worked, but the code changed the self view, and not the view containers view. A lot of the code I have tried have also not been in Swift 3, so as a new app developer, this has been quite