I have widget tree which contains top-level CustomScrollView with SliverFillRemaining inside. SliverFillRemaining may contain another CustomScrollView (see picture).
I want to prevent scrolling of nested CustomScrollView until SliverFillRemaining will fill all viewport (because of top-level CustomScrollView).
In other words I want expandable TabVeiws with scrollable grid inside.
As Yann39 noted, NestedScrollView widget solves this issue perfectly. Code sample in class documentation illustrates what to do.
Related
I have a working vertical column drag and drop React app using react-beautiful-dnd, but would like to 'invert' it so that Draggable items fall to the bottom of the Droppable div instead of floating to the top. Is this possible?
If I'm understanding you correctly, you'd like to have a list where when the container is not full, the items within that list are aligned to the bottom of the container?
If so, then yes - I would utilize flexbox.
Here is a good resource for flex - https://css-tricks.com/snippets/css/a-guide-to-flexbox/
There are multiple different ways to implement this with flex. Pick your poison.
edit
Based on the code sandbox:
I would add a wrapper div to the bay component with the same height as what you have now. On the child div, add a dynamic height field that is dependent on how many tables the bay contains.
Users won't be able to drop into the entire column but you could style it to show the user where they need to drop when the column is empty.
I ended up just creating another invisible strip with flexGrow = 1 to push everything to the bottom.
Referring to this question and answer by Shai Almog:
Rebuild list of containers without scrolling the list
I have a form with one container (TableLayout), which contains several rows with labels and buttons. Clicking a button changes the order of the rows and rebuilds the whole form (after myForm.removeAll() ). After myForm.revalidate() the form jumps to the top.
I am trying to implement this exact behaviour, to return to the same point (scroll position Y) after revalidating/changing the container contents.
I subclassed the Container-class to make setScrollY(int) visible. Using this with an arbitrary value does not scroll to the position, so it seems that the setScrollY method is not changing the scroll position of the content pane overall.
And myContainer.getScrollY() always returns "0". I only get the scroll position by calling getContentPane().getScrollY().
But it is obviously not possible to call the setScrollY()-method on the content pane - as it is not possible to subclass the content pane - to scroll back to the same position after revalidating the form.
Thanks for any advice!
Use border layout which disables the scrolling of the form/content pane.
Place your container (where you exposed setScroll) in the center and make sure to invoke setScrollableY(true) on that Container.
I am trying to create a masonary style layout using isotope. The layout must be a responsive grid with flexible columns. However each grid item has an hidden text element which opens when the image is clicked. This text will come from wordpress and therefore as an unknown length. I am trying to use the
.isotope("reLayout");
function to reset the layout when the item is toggled however it does not work. If you alter the size of the browser when the text is visible you can see that that the isotope layout kicks back in and gives the desired effect.
I have created a codepen to illustrate my issue. Any help would be appreciated
http://codepen.io/GlynnJohnson/pen/bLBCJ
Thanks
You need top use:
$container.isotope("layout");
Not
$container.isotope("reLayout");
Codepen
I am currently using ExtJs 4.2 for developing my web pages. I would like to know whether we can define a template and can reuse the template across the pages..To be little more clear, the page header and footer remains the same across pages and only body component changes.
I mean something similar to tiles in jsp.
My scenario is like this:
I have defined a border layout in which the region="north" contains the header part, region ="south" contains the footer part and region="west" and region="center" have the body content.
All my pages have a similar layout...ie..the content at west/center is only changing across pages...so do we have solution to simplify this without defining the entire layout in all the pages...
Please let me know if further clarifications are required
~Ragesh Ak
I think you will want to use Ext.define, and extend the viewport component, giving it a border layout. See the ExtJS tutorial on creating custom components for how to do that. You will want to give it a border layout, and have static panels/containers/menus/toolbars for you north and south objects.
How you model your content/center and navigation/west components depends on the style of application you are building. If you are following the single page application concept with the Model/Store/View/Controller pattern that ExtJS gives you using Ext.app.Application, then you will want to drop empty containers in those slots since you can't swap out a border layout component. Putting in empty containers will allow you to call the removeAll function and then add your new items when changing views. If you are building a regular site that reloads the page whenever you move between views, you can extend the viewport that you created, and put your content directly into the viewport since it won't ever need to change.
Use define to configure a class that extends container and has the border layout you just described, so you can reuse this new class as you need.
I have a border Layout with let's say two regions; center and west. The westregion is added with the splitter param and is collapsible. Now I have a toolbar from which I want to hide/show the west region. I've solved this by calling the toggleTargetCmp() method of the splitter. Well I know, this is a private method and should not be used, but I found no other way to archive this. So far so good. All this works.
But now I want to hide the splitter & placeholder (I fetch the placeholder ownet by using the getCollapseTarget() method of the splitter) if the button in the toolbar gets clicked. I tried it with setVisible(false) which works for the splitter but it didn't work well for the placeholder... after a deeper look onto the placeholder instance I can tell that it is set to hidden: true but it uses the hideMode: 'offsets' by default plus hiddenAnchestor: false which is not documented in the API.
Based on the API docu for hideMode I tried to set it to 'display'
before calling setVisible(false) without any luck, the placeholder still stays visible.
So how can I hide the placholder, too. Or is there even a better way to archive this?
Have you tried hide method? It works exactly as you describe - hides region and splitter.
In my project I do it like this:
panel.hide();
where panel is one of borderPanel items.