I have a ScrollableRow with lets say 5 fullscreen composables.
ScrollableRow(
modifier = Modifier.fillMaxSize(),
scrollState = scrollState) {
myData.items.forEachIndexed{ index, pageItem ->
showPage(pageItem)
}
}
Everything is shown so far, but when I swipe left/right it stops exactly on the position, where I stopped swiping:
As you can see and imagne, almost everytime it stops between two of these full screen composables.
I'd rather have a kind of stickyness and show full pages for each single left/right swipe as pictured here:
So obviously, here in the second picture with third page showing:
when I swipe one time left, I want to see full screen page 4, only
when I swipe one time right, I want to see full screen page 2, only
I bet there is a mechanism for this?
HorizontalPager will suit you. Check Accompanist Pager layouts
Related
I have a ModalBottomSheetLayout with a list of items in my Compose view, which can be showed by some UI interaction.
By default, when bottomSheetState.show() is called, the visible ratio for the BottomSheet is 50%. However, this is not ideal from a UX perspective as the user will have to physically pull up the bottom sheet to see all the contents in the list.
Extremely frustrating is the fact that bottomSheetState.show() does not take in any parameters, and that the 50% value seems to be hard coded in. According to the declaration in androix.compose.material:
suspend fun show() {
val targetValue =
if (isHalfExpandedEnabled) HalfExpanded
else Expanded
animateTo(targetValue = targetValue)
}
I would like to instead show a custom value, say 75%, when the bottom sheet is showed, but so far I haven't found a way to do so. Is there a workaround to this?
I am not sure if you can make it 75% visible but you can show it expanded
bottomSheetState.animateTo(ModalBottomSheetValue.Expanded)
I'm using Jetpack Compose with the BottomSheetScaffold. To be able to show and hide the bottom sheet from both within and outside the composable, I used a showBottomSheet: MutableState<Boolean> variable. The peek height within the composable is then determined like this:
val baseBottomSheetPeekHeight by remember { mutableStateOf(60.dp) }
val bottomSheetPeekHeight = if (showBottomSheet.value) baseBottomSheetPeekHeight else 0.dp
Later, in the BottomSheetScaffold, I use the variable like this:
BottomSheetScaffold(
...
sheetPeekHeight = bottomSheetPeekHeight,
...
)
(Full reproducer project here: https://github.com/dbrgn/compose-repro)
This generally works as intended, I can set showBottomSheet.value to false to hide the bottom sheet. However, the hiding looks janky, because not all sub-composables are hidden at the same time.
It's a bit hard to see in the animation above due to the GIF conversion, but when closing the bottom sheet peek pane, the other content (below it) is visible for a short moment, before the bottom sheet disappears.
Is there a way to avoid this janky hiding behavior? Or even better, is there a way to smoothly animate the hiding of the pane?
In my case for Smooth closing BottomSheetScaffold I used to: scaffoldState.bottomSheetState.animateTo(Collapsed, tween(duration))
-- (when duration is any Int you want).
The same for Expanding:
scaffoldState.bottomSheetState.animateTo(Expanded, tween(duration))
If you look at the source code of collapse() or expand() function, you will see there just calling animateTo(Expanded) and animateTo(Collapsed). You can customize animateTo() as you wish.
See animateTo() documentation.
I have two pages, both with their own Scaffold and a slightly different AppBar. I use Navigator.push to switch between them.
The second page is a popup which overlays the first page by having a transparent Scaffold with body of about 50% screen height. Here's how it looks:
In the first page, the red curtain ends just below the AppBar. When you open the second page, the curtain animates down to the screenshot above. I achieved this by starting the down animation in initState of the second screen.
Now, I want the opposite animation of the curtain rolling back up when you leave the second page. How would I do that? Is there a way to animate widgets (not just fade/slide whole pages) when you enter/leave the page?
Can I access the Route's transition animation (the same one that is passed to Route.buildTransitions) and use it to animate widgets inside the page itself?
we're using smartGWT for our web application. An the main page is a tabset that shows different tabs. What I want to do is do a button to the tab set with the setTabBarControls method which then is alligned to the left instead to the right. So it would somewhat look like the current Firefox version.
Is there a possibility to change the allignment of the TabBarControls? I couldn't find any.
If you want to create something like the Firefox corner button, just use TabSet.addChild(). That will place the button at the upper left, and you can use setLeft/setTop to move it elsewhere. If you want the control to appear to the left of the tabs, set a layoutStartMargin on the TabBar to leave space for it.
I'm a newbe for Blackberry and finding it quite difficult, I'm working on the TabControl example. I have changed the tabs to scroll. Now when i scroll through tabs the focus changes and as soon as the focus shifts to the other tab, the data for that tab appears.
I want to make these tabs clickable only, though they shall scroll but should change only on click.
And also when i use UIApplication.getApplication.pushScreen(someScreen) in the tabs, this someScreen appears out of the tabs, whereas i want to show this screen below the tabs only.
please help
You have to override onFocus(int) to not do anything when focus is moved. (You may or may not have to override touchEvent to handle an actual CLICK event).
You can push a screen into tabs that is not part of the tabs already. If you want something new to appear, try switching managers within the screen instead.