[Feature Request] Start Horizontal Scrollview at index

[NilsBaumgartner1994]

Since my issue #14 was closed but i believe my question was missunderstood, i reopened a new issue.
My wish is to let the timetable start a specific day, so the horizontal position (not the vertical).

For example it would be nice to let the user start on the current day. When the items are from monday till sunday and currently it is friday, i dont want to have the first item to be friday. If the first item would be friday, the user cant scroll left to monday.

Since in #14 you mentioned, that there is no vertical scrollview my wish is pointing at the horizontal "scrollview".

Currently always need to scroll to current day/item

With prop startIndex=2 it would start at the second item. I believe the horizontal scrollview could do this.

[NilsBaumgartner1994]

To start a horizontal Animated.ScrollView at a specific index or position, you can use the scrollTo method and pass in the x and y coordinates of the desired position. For example, to start the scrollview at index 2, you can use the following code:

const scrollViewRef = useRef(null);
...

<Animated.ScrollView
    ref={scrollViewRef}
    ...
>

...


useEffect(()=>{
    const itemWidth = 100;
    const indexToStart = 2;
    const x = indexToStart * itemWidth;
    const y = 0;
    if (scrollViewRef.current) {
        scrollViewRef.current.scrollTo({x, y, animated: true});
    }
},[])

[NilsBaumgartner1994]

Okay i used the given props by myself :-)

Here is a small tutorial:

export const MyComponent = (props) => {
      const scrollViewRef = useRef(null);
      const indexToStart = 1;
      const columnWidth = <YOUR WITH OF AN ITEMCARD>

        useEffect(() => {
        if (scrollViewRef?.current) {
            console.log("scroll to start");
            const x = indexToStart * columnWidth;
            const y = 0;
            scrollViewRef.current.scrollTo({x, y, animated: true});
        } else {
            console.log("scroll to start failed");
        }
    }, []);


   return(
      <Timetable
                        scrollViewProps={{
                            ref: scrollViewRef,
                        }}
               ....
      />
   )

}

[NilsBaumgartner1994]

Would be nice to be added to the documentation