RN ScrollView reduce amount of swipe needed - react-native

I'm using a ScrollView for my app onboarding (horizontal scrolling/swiping).
How can I reduce the amount of swipe needed to move to the next page? (with pagingEnabled).
I want the user to be able to scroll with shorter swipe lengths rather than having to drag a lot to one side or the other.
And if I don't use pagingEnabled and instead use snapToInterval/Alignment and decelerationRate, I have this issue where the user can scroll multiple pages at once.

Related

Hiding Scrollview items when there isn't enough room to show them

I'm currently developing an app where a list of items are being rendered in a ScrollView that's positioned before and after a View just like shown in the image.
Now as I scroll the first and last items tend to get occluded by the padding/Views. Is there any way to handle this behavior by making any partially occluded item not make it to the view?

How to set the scrolling threshold for a react native ScrollView to switch to next/previous page

I currently have a ScrollView/Flatlist containing 4 items with paging enabled. When rendered, each item covers the entire screen in portrait mode. On Android, when the user tries to swipe vertically from one item to another, this requires "large" swipe gestures.
I am trying to increase the "sensitivity" of the react native ScrollView so that the user requires smaller swipe gestures to switch from one item to another.
At the moment the switch to the next/previous page requires that roughly 50% of the target page is visible. I want to reduce this value so that the user does not need to do big swipe gestures.
Any suggestions on how I could fine-tune the props of the ScrollView/FlatList would be great!

React Native pushing component in and out of screen dynamically

As shown in the attached gif, the navigation bar at the bottom and the URL bar at the top are pushed in and out(not just show/hide at once) of view as user scrolls. How can I achieve this 'hiding' effect in React Native? The key point is that the hiding speed of the component should correspond to the scrolling speed.
I have tried giving negative values to the top and bottom, like so:
style={{bottom:dynamicallyChangingScrolledValue()}}
although it does push the view out of the screen, space where the component used to remain in the blank, occupied.
Are they using animations here? or changing some offset value dynamically by incrementing a small amount?

react native infinite scrolling with performance optimization both horizontally and vertically

I need a ListView or Table or any other custom component that can have infinite scrolling in both horizontal and vertical directions. For example, 10,000 rows and 10,000 columns. We have the react-native's FlatList component but it can be used for either vertical or horizontal but not for both. If the data is finite, we can go with implementing a vertical scrollView inside a horizontal scrollView or vice-versa. But as we are looking for infinite scrolling, we are not able to use scrollView as it tries to load the entire content when the app is opened and the memory consumption is very huge so that the app automatically crashes. Does anyone have any idea if there are any third party libraries that can scroll both vertically and horizontally and also can look after the performance? Actually, is that possible to build such a component on our own in react-native? If so, please tell me if you have any ideas.

ReactNative ScrollView scroll threshold

I am trying to understand how can I set a threshold for the RN ScrollView.
This is because if you have multiple vertical scrollable View in a horizontal ScrollView then the scrolling of the Views is very difficult.
So i just need something that holds the horizontal scrolling until the finger swipe horizontally for a certain pixel-span.
Has anyone a clue about how to archive this?
You can use the native scroll event in onScrollEnd to get the velocity of the scroll, then only scroll horizontally if it's past a certain amount. On most vertical/horizontal scrolls, most users only scroll in one direction. If you truly want to implement a distance based scroll, you would need to attach a PanResponder to your component and compare the distnaces of the Grant and Release events.