layout

问题 Excuse the ignorance i am new to Flutter. I am practicing on a course I did and I have the following scenario: I have a view where I consume a web service in the method getDataArray ( FutureBuilder ), and I just want it to be done only once when this view is accessed. I also have a TextField , FutureBuilder and the TextField is in the build() . My widget is a StatefulWidget because it needs to be redrawn to show the character counter of my TextField , so I think this is the reason that every

问题 I have a horizontal scrollview with many EditText children. I want each of these children to be the same width of the visible area of the parent scrollview. Is this possible in XML? 回答1: You can do it writing a small helper class: We are creating a very small class that extends EditText called FullWidthEditText like this: package com.YOURPACKAGENAME; import android.content.Context; import android.util.AttributeSet; import android.view.View; import android.widget.EditText; import android

问题 I have a layout made of a Column, one of its elements being a row (so that it takes the full width of the screen). Inside that row, I have a wrap, which content is pretty big and that I want to put inside a SingleChildScrollView. @override Widget build(BuildContext context) { return Scaffold( body: SafeArea( child: Container( padding: const EdgeInsets.all(kPaddingMainContainer), child: Column( mainAxisAlignment: MainAxisAlignment.center, children: <Widget>[ Row( mainAxisAlignment:

问题 I'm trying to structure the following form layout using MaterialUI Grid components and fields: +-----------------------------------------+ |Form | | | | +--------------+ +----------------+ | | |Field_1 | |Field_2 | | | +--------------+ +----------------+ | | +--------------+ +---------+ +--------+ | | |TextArea | |Popup_A1 | |Popup_A2| | | | | +---------+ +--------+ | | | | +---------+ +--------+ | | | | |Popup_B1 | |Popup_B2| | | | | +---------+ +--------+ | | | | +---------+ +--------+ | |

问题 I want to have customizable content in my layout page in blazor. I have tried adding a renderfragment parameter to the layout and adding makeup with the same name in my component but it is not rendered in my layout eg layout.razor: <header> @HeaderContent </header> @body @code { [Parameter] public RenderFragment HeaderContent { get; set; } } component.razor: <HeaderContent> <p>my page specific content</p> </HeaderContnt> but the headercontent is rendered in the body. can anybody explain how

问题 I'm trying to do a custom layout like the Chanel app you can find the app in the Appstore. https://itunes.apple.com/us/app/chanel-fashion/id409934435?mt=8 I know they are using an UICollectionView, but no clue how to start. The interaction feels like a tableview mixed with a paginated scroll. When you scroll the elements grow, and the first element position itself at the top. 回答1: Start with dragging & positioning just one UIView . See UIGestureRecognizer docs and look for existing examples

问题 I'm trying to do a custom layout like the Chanel app you can find the app in the Appstore. https://itunes.apple.com/us/app/chanel-fashion/id409934435?mt=8 I know they are using an UICollectionView, but no clue how to start. The interaction feels like a tableview mixed with a paginated scroll. When you scroll the elements grow, and the first element position itself at the top. 回答1: Start with dragging & positioning just one UIView . See UIGestureRecognizer docs and look for existing examples

问题 I'm trying to do a custom layout like the Chanel app you can find the app in the Appstore. https://itunes.apple.com/us/app/chanel-fashion/id409934435?mt=8 I know they are using an UICollectionView, but no clue how to start. The interaction feels like a tableview mixed with a paginated scroll. When you scroll the elements grow, and the first element position itself at the top. 回答1: Start with dragging & positioning just one UIView . See UIGestureRecognizer docs and look for existing examples

问题 I'm battling an issue where I'm given the error " Object was given an infinite size during layout " and "This probably means that it is a render object that tries to be as big as possible, but it was put inside another render object that allows its children to pick their own size.". I understand what it means, but not how I can still keep my current widget tree responsive (it renders when running, so for a front-end user there seems to be no problem) while still fixing this issue. Currently I