https://liangjingkanji.github.io/BRV/drag.html

https://liangjingkanji.github.io/BRV/drag.html

大佬这个不行哦，我需要的是，拖拽1到5的位置，5的item就在1的位置，1在5的位置，而不是1到5,

class DraggableModuleService(private val baseQuickAdapter: BaseQuickAdapter<*, *>) :
BaseDraggableModule(baseQuickAdapter) {
val TAG = "DraggableModuleService"

override fun onItemDragMoving(
    source: RecyclerView.ViewHolder,
    target: RecyclerView.ViewHolder
) {
    Log.i(TAG, "onItemDragMoving: ")
    if (target.layoutPosition>4){
        super.onItemDragMoving(source, target)
    }else{
        //自己的排序规则
    }
}

}

重新设置draggableModule

DraggableModuleService draggableModule = new DraggableModuleService(mAdapter);
    draggableModule.setItemTouchHelperCallback(new DragAndSwipeCallback(draggableModule));

    draggableModule.attachToRecyclerView(mRecyclerView);
    draggableModule.setDragEnabled(true);

class DraggableModuleService(private val baseQuickAdapter: BaseQuickAdapter<*, *>) :
BaseDraggableModule(baseQuickAdapter) {
val TAG = "DraggableModuleService"

override fun onItemDragMoving(
    source: RecyclerView.ViewHolder,
    target: RecyclerView.ViewHolder
) {
    Log.i(TAG, "onItemDragMoving: ")
    if (target.layoutPosition>4){
        super.onItemDragMoving(source, target)
    }else{
        //自己的排序规则
    }
}

}

重新设置draggableModule

DraggableModuleService draggableModule = new DraggableModuleService(mAdapter);
    draggableModule.setItemTouchHelperCallback(new DragAndSwipeCallback(draggableModule));

    draggableModule.attachToRecyclerView(mRecyclerView);
    draggableModule.setDragEnabled(true);

大佬，不是交换1和5的位置，是我表达不够好，其实是想只交换拖动的item和拖动到该item的位置互换，其他不变，移动不要交换，松手后才交换