I am creating a Listview with pagination. If i put the ListView within KeyboardAwareScrollView then onEndReached not called properly. But if i don't put the ListView within any kind of Scrollview it is working perfectly.
My problem is that the content above the ListView is quite big. If i don't put it entire view within any scrollview the bottom content will not be shown.
How to solve this issue?
Thanks in advance.
Sorry I can't put comment because my rep is below 50.
I'm trying to imagine ur situation based on the description because there's no snapshot of ur desired outcome and current outcome. What I understood is this:
If i don't put it entire view within any scrollview the bottom content
will not be shown
This may be just the problem of not putting {flex:1} in the outtermost container view
If i put the ListView within KeyboardAwareScrollView then onEndReached
not called properly
ListView is deprecated as per React Native 0.55 documentation. I don't really understand your scenario, but you might wanna consider just using Scrollview or Flatlist, they might have the solution that ur looking for in a different form. If you are looking for a solution so that your view would avoid keyboard, u could simply use KeyboardAvoidingView from react native instead of using a third party lib, because sometimes they could be restrictive.
All the best! :)
Related
I am trying to use pull to refresh from FlatList. Is it possible to move the spinner to where the data actually starts rendering instead of the top of the screen? I found the progressViewOffset that works on Android but I am trying to find how I can implement this behaviour on iOS too. I feel like my solution is to watch scroll interactions and go on from there.
Any idea is appreciated. Thanks in advance.
I was researching this since last year from time to time. I always wonder how Instagram handles the feeds screen?
What kind a component they using for it?
I'm sure it's not a ScrollView becouse it's much more performant than a ScrollView.
It is not also a FlatList becouse I know the basics of the FlatList how it renders the rows etc... and I am sure that they don't use it. For example a FlatList renders the items on top of each other like a card stack. In this behavior you cannot achieve the current Pinch Zoom feature that they have.
I thought maybe they use flipkart's RecyclerListView which is based on Java and much more performant than ScrollView and FlatList, but I am not quite sure about that too.
Any ideas about what they using to achieve current functionality on the feeds screen?
I mean, is there a method or specific listing component to achieve same behavior with all the functions like Double Tap to Like, like Pinch Zoom with overlaying everything.
#Quick note about pinch zooming, it's nearly impossible to build a component with current states of ScrollView and FlatList which will be performant and has same functionality.
You can check out my other topic about that here
Long story short, I have tried a lot of methods and 3rd party components to achieve same thing, but still could not do it.
Thanks for your thoughts!
I watched this presentation and there's a section on how to build an IOS Maps like UI. When dragging from the bottom to top, it drags to the top, and after it reaches the top, it continues scrolling up. Also, when scrolling down, when it reached the top content of the ScrollView, it continues to drag down.
It is suggested that it can be done using ScrollView by adding an empty transparent cell as the first element on the ScrollView. I have tried implementing the same which can be found in this snack. In my case, instead of Maps, I am using another ScrollView.
But the problem is that the first element (transparent element) does not allow to interact with the First ScrollView elements. I have tried with pointerEvents inside the first transparent view and even in its parent ScrollView. But this does not help. Has anyone tried implementing this kind of use case with react-native? All I found was this library, but I think it's not maintained properly.
you need to set the z-index of the transparent view to send it under/behind the interactive content, here is a good resource:
https://philipwalton.com/articles/what-no-one-told-you-about-z-index/
Edit: Actually I could not accomplish it, it seems like everything inside a scrollview will always be behind or in front of other elements, it seems like you can't have part of the scrollview behind something else and another part in front of something else.
I am trying to figure out how to create a bidirectional loading flatlist. Right now if you add data to the top of a flatlist, it will renreder and repositiin to the top of the flatlist.
I know there is a way some users have rigged up to perform an animated scroll. But that still creates kinda a choppy effect.
My thinking was if i had two flatlists, one of which serves as my new data, I could house those in a scrollview, and essentially get the scrollview to act like a window, And have its position not be affected by any of the rendering
Does anyone have a solution for any of this? I saw one of the RCs just added this to ios, but I am trying tonget it working on Android as well :(
As shown above, I want to create this two-part screen where I can click onto both the A component and B component on the first view provided here. When a user scrolls B component, it may take up the entire screen and move over the A component. (A component does not move with the FlatList).
I'm new to react native and was wondering how I could create such behavior? I tried using absolute positioning and ListHeaderComponent inside the FlatList but didn't really get anywhere. Let me know if anyone has an idea.
Thanks!
I would try something like the following screen structure:
View
Image
ScrollView w/ trans background that goes to the top of screen
FlatList with top padding to push it below the image
Items in list
/FlatList
/ScrollView
/View
You could also see if react-native-parallax-scroll-view works for you as it looks somewhat similar to what you describe
https://github.com/jaysoo/react-native-parallax-scroll-view