How to disable oblique viewpager swiping in android?

Question

Help, how to avoid oblique swipe in viewpager2

I have a screen with elements divided into pages when effect a horizontal or vertical swipe is ok

but when the user makes an oblique swipe the page changes

how to avoid this?

<?xml version="1.0" encoding="utf-8"?>
<androidx.viewpager2.widget.ViewPager2 xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/page"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

And i try with this

 binding.page.setOnTouchListener(object : View.OnTouchListener {
            override fun onTouch(v: View?, event: MotionEvent?): Boolean {
                when (event?.action) {
                    MotionEvent.ACTION_DOWN -> binding.page.isUserInputEnabled = false
                }
                return v?.onTouchEvent(event) ?: true
            }
        })

Answer 1

I have the same problem， this answer cant help me

fun ViewPager2.reduceDragSensitivity(f: Int = 4) {
val recyclerViewField = ViewPager2::class.java.getDeclaredField("mRecyclerView")
recyclerViewField.isAccessible = true
val recyclerView = recyclerViewField.get(this) as RecyclerView

val touchSlopField = RecyclerView::class.java.getDeclaredField("mTouchSlop")
touchSlopField.isAccessible = true
val touchSlop = touchSlopField.get(recyclerView) as Int
touchSlopField.set(recyclerView, touchSlop*f)       // "8" was obtained experimentally

}

Answer 2

I just tested out the behavior you described. In my opinion ViewPager2 and RecyclerView work together flawlessly: On a diagonal swipe with less than 45°, the ViewPager2 gets scrolled. On diagonal swipes with more than 45°, the RecyclerView gets scrolled.

However, this seems only true when the Activity is newly created. It also seems to depend a little bit on the prior scroll gesture.

• When you first make a vertical swipe ( RecyclerView gets scrolled), after that, diagonal scrolls again will scroll the RecyclerView .
• When you just made a horizontal swipe ( ViewPager2 gets scrolled), then diagonal scrolls tend to scroll the ViewPager2 .

Maybe this is the intended behavior. To provide a more intuitive user experience,
I'd probably keep it as is, as I had to test quite some time to reproduce your described behavior.
Actually, all the scrolling felt very intuitive the way it is.

And keep in mind: If you really only want to allow exactly 0° horizontal swipes to scroll the ViewPager2 , you're giving your users a very hard time. It would be practically impossible to scroll the ViewPager2 .