I have bottom navigation bar. So my composable functions do not take up the full screen size.
When I use ModalBottomSheetLayout, it opens in the composable fun, not in the activity, like when i was using it before when using BottomSheetDialogFragment.
I don't want to write my ModalBottomSheetLayout on the upper level, I think that this is not the right approach.
And i don't want to use the old BottomSheetDialogFragment, since compose is everywhere in a project.
Related
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 a Compose MotionLayout with :
a title at the middle of the screen first
a bellow content which can be a LazyColumn or a Column with verticalScroll()
When I dragUp the content, the title must go to the top of the screen (it works) and the content must remain bellow (it works too).
I use NestedScrollConnection to detect when there is a DragUp on my List and apply it to my swipeableState (swipeableState.performDrag(...)).
The problem is that my LazyColumn/scrollable column scrolls inside itself during the MotionLayout top animation.
I do not remember in XML I had this issue.
How to handle it?
I want to implement a bar at the bottom of the screen with the home button - exactly like in Instagram or Messanger apps. I was trying to use a tab bar (https://developer.apple.com/ios/human-interface-guidelines/bars/tab-bars/)
And I would like to utilize system home icon for the tab bar button/item (https://developer.apple.com/documentation/uikit/uiapplicationshortcuticontype/1623374-home)
Is there any simple and straight forward way to set this home icon for the tab bar item?
Some icons can be selected directly from the list in the button/item properties in Xcode, but this home icon is not among them.
I also saved the png from the link above, resized it to 30x30 and added as a picture for the button/item, but it's just showing a grey rectangle.
Apple may or may not provide you with some images. In general no one uses stock images but provide their own. You should do the same.
So "Adding home icon to the tab bar" is pretty much the same as for any other tab bar item. You can add your image and/or text that represents your "home" button. Some images may already be at your disposal but others must be made/bought/stolen by you.
The image you use in tab bar item is only used as a mask and not as an explicit image. What that means is that only alpha component of the image will be taken. In your case you have a black icon on white background which from alpha perspective means you have a rectangle. You will need to remove the white background and make it transparent or use another image that already has these properties.
I am not sure for tab bar but you might also try to open your assets, select your image and then in options on the right find "Render as" and set it to "Original image". Even if this will work the results will not be as you desire (at least in most cases) due to a white background on the image.
In general this option is used to set it to "template" which means whenever you use this image on your components such as UIImageView it will use it's tint color and image alpha component instead of the actual colors from the image. It is a very useful tool but again I am not sure it will work on tab bar item.
You should stop wondering if Xcode is designed to be overcomplicated. Putting aside numerous amount of bugs (and there is really a lot of them) and it being slow (it really used to be faster) it is designed very nicely. But tab bar view controller is extremely high level component. If you don't like it the way it is then simply create your own. All you need is a bottom view with your N buttons which may be shaped any way you can possibly imagine and a container view on which you set a new view controller when one of those buttons is pressed.
What I'm trying to do is simple: bring a label in front of an image within a subview.
But all of the options for arranging are disabled/un-selectable when my label is selected. I find this happens often.
What could be the reason that I'm almost never allowed to change the z-axis of my objects in the Arrange menu? Is it a better practice to avoid this feature and set the order of views programmatically?
It can depend on how you have selected the label (similar to how the label can only be moved with the keyboard when selected in some ways).
A simple alternative is to look at the list of view in the pane on the left and to drag the views up and down to change the order.
It happens sometimes. In that situation, click the view or image you want to send back then you will see little square box at the edges of image from which you can re size your image, Just click on it once and then go to Editor > Arrange > Choose option according your need.
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.