Fixed
Status Update
Comments
jb...@google.com <jb...@google.com>
do...@google.com <do...@google.com> #2
Nested scrolling works partially (as per http://b/122818889 ). Let's discuss if we need full support and if so make sure it works.
cl...@google.com <cl...@google.com> #3
Hi!
What is 'partially' exactly?
How do I see it?
Thanks!
What is 'partially' exactly?
How do I see it?
Thanks!
st...@warting.se <st...@warting.se> #4
As of now:
- Nesting scroll views with a scroll direction perpendicular to the ViewPager2's orientation inside ViewPager2 works
- Nesting scroll views with a scroll direction parallel to the ViewPager2's orientation inside ViewPager2 does not work
- Nesting scroll views with a scroll direction perpendicular to the ViewPager2's orientation inside ViewPager2 works
- Nesting scroll views with a scroll direction parallel to the ViewPager2's orientation inside ViewPager2 does not work
cl...@google.com <cl...@google.com> #5
Horizontal ViewPager2 not correctly working into a vertical RecyclerView
Set a setNestedScrollingEnabled to the RecyclerView into the ViewPager2 (across reflection) resolves the problem
Set a setNestedScrollingEnabled to the RecyclerView into the ViewPager2 (across reflection) resolves the problem
st...@warting.se <st...@warting.se> #6
ageevvalentin@gmail.com, could you provide a sample app? I'd like to learn more about the circumstances that cause the problem; putting a clean ViewPager2 inside a clean RecyclerView seems to work fine, so there must be other factors involved.
ap...@google.com <ap...@google.com> #7
Added a patch for androidx-master-dev that demos a horizontal ViewPager2 inside a vertical RecyclerView.
Verified that it works correctly on a:
- Nexus 4 emulator with API 17
- Nexus 5X emulator with API 28
- Pixel 2 device with API 29
To reproduce:
- Check out the Android Jetpack source (at commit 256899f482ff85cddfb050f37550be7b5ec927ef) (see steps in [1])
- Apply the patch (`git apply 0001-Add-sample-where-a-horizontal-ViewPager2-is-nested-i.patch`)
- Build and install viewpager2's integration-tests app: `./gradlew viewpager2:integration-tests:testapp:installDebug`
- Run it
Closing the issue for now, but please reopen if you have a minimal reproduction app
[1]https://android.googlesource.com/platform/frameworks/support/+/256899f482ff85cddfb050f37550be7b5ec927ef
Verified that it works correctly on a:
- Nexus 4 emulator with API 17
- Nexus 5X emulator with API 28
- Pixel 2 device with API 29
To reproduce:
- Check out the Android Jetpack source (at commit 256899f482ff85cddfb050f37550be7b5ec927ef) (see steps in [1])
- Apply the patch (`git apply 0001-Add-sample-where-a-horizontal-ViewPager2-is-nested-i.patch`)
- Build and install viewpager2's integration-tests app: `./gradlew viewpager2:integration-tests:testapp:installDebug`
- Run it
Closing the issue for now, but please reopen if you have a minimal reproduction app
[1]
cl...@google.com <cl...@google.com> #8
Re-opening as requested by a few users. Narrowed down the focus to nested scrolling elements with the same scroll direction.
pr...@google.com <pr...@google.com> #9
Any progress on this? (only talking about the "same scroll direction" issue)
I searched a lot for workarounds on Google and SO, but it seems no one really found a suitable solution yet.
The thing is that all other VerticalViewPagers out there have other problems that are similarly annoying. Most of them revolve around touch issues like "What's a click and what's a swipe" or "what's the fling threshold to snap to the next page".
So if someone knows of a working sample of VerticalViewPagers, I'd be happy to see a link :)
I searched a lot for workarounds on Google and SO, but it seems no one really found a suitable solution yet.
The thing is that all other VerticalViewPagers out there have other problems that are similarly annoying. Most of them revolve around touch issues like "What's a click and what's a swipe" or "what's the fling threshold to snap to the next page".
So if someone knows of a working sample of VerticalViewPagers, I'd be happy to see a link :)
Description
Version used: 2.8.0-alpha08
If passing an empty string as an safe argument the destination does not exists
@Serializable
object LoginSelector
@Serializable
data class RegisterUser(val email: String)
NavHost(
navController = navController,
startDestination = LoginSelector,
modifier = modifier
) {
composable<LoginSelector> {
Button(onClick = {
navController.navigate(RegisterUser("foo")) // Works!
}) {
Text(text = "Login1")
}
Button(onClick = {
navController.navigate(RegisterUser("")) // Doesn't work. Destination does not exists
}) {
Text(text = "Login2")
}
Button(onClick = {
navController.navigate(RegisterUser(null)) // works if making email nullable
}) {
Text(text = "Login3")
}
}
composable<RegisterUser> { backStackEntry ->
val emailLogin: RegisterUser = backStackEntry.toRoute()
Text(text =emailLogin.email)
}
}