Java 如何修复IndexOutOfBoundsException在ClerView适配器的onRowMoved函数

我遇到了一个问题，那就是在我的Recical erView适配器中实现onRowMoved函数.

此函数负责在项目被拖放时处理RecEconerView中的项目移动.

但是，我遇到了一个java.lang.IndexOutOf边界异常.

我的代码是:

val touchHelper = ItemTouchHelper(object : ItemTouchHelper.Callback() {

    ...

    override fun onMove(
        recyclerView: RecyclerView,
        viewHolder: RecyclerView.ViewHolder,
        target: RecyclerView.ViewHolder
    ): Boolean {
        return imagesAdapter?.onRowMoved(viewHolder, target) ?: false
    }

})

fun onRowMoved(
    fromViewHolder: RecyclerView.ViewHolder,
    toViewHolder: RecyclerView.ViewHolder
): Boolean {
    val fromPosition = fromViewHolder.bindingAdapterPosition
    val toPosition = toViewHolder.bindingAdapterPosition
    val imagesSize = this.images.size

    if (fromPosition < imagesSize && toPosition < imagesSize) {
        if (fromPosition < toPosition) {
            for (i in fromPosition until toPosition) {
                Collections.swap(this.images, i, i + 1)
            }
            notifyItemMoved(fromPosition, toPosition)
        } else {
            for (i in fromPosition downTo toPosition + 1) {
                Collections.swap(this.images, i, i - 1)
            }
            notifyItemMoved(toPosition, fromPosition)
        }

        Handler().postDelayed({
            notifyDataSetChanged()
        }, 1000)
        return true
    }
    return false
}

崩溃日志(log)如下:

Fatal Exception: java.lang.IndexOutOfBoundsException: Index -1 out of bounds for length 8
       at jdk.internal.util.Preconditions.outOfBounds(Preconditions.java:64)
       at jdk.internal.util.Preconditions.outOfBoundsCheckIndex(Preconditions.java:70)
       at jdk.internal.util.Preconditions.checkIndex(Preconditions.java:266)
       at java.util.Objects.checkIndex(Objects.java:359)
       at java.util.ArrayList.get(ArrayList.java:434)
       at java.util.Collections.swap(Collections.java:548)
       at com....newProduct.NewProductImagesAdapter.onRowMoved(NewProductImagesAdapter.kt:208)
       at com....newProduct.NewProduct$createImagesAdapter$touchHelper$1.onMove(NewProduct.kt:927)
       at androidx.recyclerview.widget.ItemTouchHelper.moveIfNecessary(ItemTouchHelper.java:891)
       at androidx.recyclerview.widget.ItemTouchHelper$2.onTouchEvent(ItemTouchHelper.java:390)
       at androidx.recyclerview.widget.RecyclerView.dispatchToOnItemTouchListeners(RecyclerView.java:3515)
       at androidx.recyclerview.widget.RecyclerView.onTouchEvent(RecyclerView.java:3713)
       at android.view.View.dispatchTouchEvent(View.java:14879)