(itemIndex)) { if (!...= IndexOf(item); if (itemIndex >= 0) { Swap(itemIndex, m_items.Count - 1); m_items.RemoveAt...) { return itemIndex >= 0 && itemIndex < m_items.Count; } void Swap(int index1, int index2) {...) { if (IsValidIndex(itemIndex)) { var itemCountIndex = itemIndex + 1; // first check...[itemIndex])) { Swap(childIndexLeft, itemIndex); itemIndex = childIndexLeft
= null); final int itemIndex = _indexToItemIndex(index); assert(itemIndex >= 0 && itemIndex <= _...for (_ActiveItem item in _incomingItems) { if (item.itemIndex >= itemIndex) item.itemIndex...+= 1; } for (_ActiveItem item in _outgoingItems) { if (item.itemIndex >= itemIndex) item.itemIndex...; @override int compareTo(_ActiveItem other) => itemIndex - other.itemIndex; } 可以看得出来,这其实就是一个包装类...) { final int i = binarySearch(items, _ActiveItem.index(itemIndex)); return i == -1 ?
onItemDrop((event:ItemDragInfo,itemIndex:number,insertIndex:number,isSuccess:boolean)=>{ })event:表示当前交换的位置坐标...,itemIndex:表示拖拽前元素的下标,insertIndex:表示需要交换位置元素的下标,isSuccess:表示拖拽是否结束。...isSuccess || (itemIndex||insertIndex) >= this.arr.length) { return}let temp = this.list[itemIndex];this.list...[itemIndex] = this.list[insertIndex];this.list[insertIndex] = temp;首先需要判断拖拽手势是否结束,同时两个下标是否发生数组越界。...];this.list[itemIndex] = this.list[insertIndex];this.list[insertIndex] = temp;总结在实际的开发实现时,通过对列表元素的回调方法的研究与分析
mItems.get(itemIndex) : null; } else { ii = addNewItem(pos, itemIndex..., itemIndex); itemIndex++; extraWidthRight += ii.widthFactor...ItemInfo ii = itemIndex >= 0 ?...itemIndex itemIndex > 0) { itemIndex--; ii = mItems.get(itemIndex
0 for itemIndex in 0.....<itemsCount { let indexPath = IndexPath(item: itemIndex, section: 0) let attributes =...* kEmotionCellRow) // 通过一系列计算, 得到x, y值 let x = itemSize.width * CGFloat(itemIndex %...0 for itemIndex in 0.....= UICollectionViewLayoutAttributes(forCellWith: indexPath) page = itemIndex
images/mainTab_item03_up.png - images/mainTab_item04_up.png 定义 item 相关数据 // 被点击 item 下标 int _itemIndex...* */ AppBar _initTop(BuildContext context){ return AppBar( title: Text(_pageNameList[_itemIndex...} /** * 初始化中间区域 * */ Widget _initContent(BuildContext context){ return _pageList[_itemIndex..._getItemText(3) ), ], type: BottomNavigationBarType.fixed, currentIndex: _itemIndex...} /** * 初始化中间区域 * */ Widget _initContent(BuildContext context){ return _pageList[_itemIndex
fileprivate let lxfFlag: Int = 666 extension UITabBar { // MARK:- 显示小红点 func showBadgOn(index itemIndex...: Int, tabbarItemNums: CGFloat = 4.0) { // 移除之前的小红点 self.removeBadgeOn(index: itemIndex...) // 创建小红点 let bageView = UIView() bageView.tag = itemIndex + lxfFlag...: Int) { // 移除小红点 self.removeBadgeOn(index: itemIndex) } // MARK:- 移除小红点...{ if $0.tag == itemIndex + lxfFlag { $0.removeFromSuperview()
'block' : 'none' }} key={itemIndex} > <FormItem label={field.label}...'block' : 'none' }} key={itemIndex} > <FormItem label={field.label}...'block' : 'none' }} key={itemIndex} > <FormItem label={field.label}...'block' : 'none' }} key={itemIndex} > <FormItem label={field.label}...'block' : 'none' }} key={itemIndex} > <FormItem label={field.label}
--; ii = itemIndex >= 0 ?..., itemIndex); itemIndex++; extraWidthRight += ii.widthFactor...; ii = itemIndex ii.position && itemIndex < mItems.size() - 1) { itemIndex++;...&& itemIndex > 0) { itemIndex--; ii = mItems.get(itemIndex
','x: '+event.x+'y: '+event.y+'itemIndex:'+itemIndex) //设置拖拽过程中显示的图片。...return this.pixelMapBuilder(this.imgs[itemIndex]); }) .onItemDragMove((event: ItemDragInfo..., itemIndex: number, insertIndex: number) => { this.showDeleteImg = false Logger.info....onItemDrop((event: ItemDragInfo, itemIndex: number, insertIndex: number, isSuccess: boolean...) => { Logger.info('========onItemDrop','x: '+event.x+'y: '+event.y+'itemIndex:'+itemIndex)
不过我们可以通过它所带的一些参数来间接得到序号,下面来看看怎样得到和显示序号值计算方式如下: (1)在后台 DataGrid.CurrentPageIndex * DataGrid.PageSize + e.Item.ItemIndex...="序号2"> itemIndex...) { return (DataGrid1.CurrentPageIndex * DataGrid1.PageSize + itemIndex + 1); } private void DataGrid1...+ 1).ToString(); e.Item.Cells[1].Text = (dg.CurrentPageIndex * dg.PageSize + e.Item.ItemIndex + 1)....")).Text = (dg.CurrentPageIndex * dg.PageSize + e.Item.ItemIndex + 1).ToString(); } } } } 数据层代码如下:
input': return ( <Col {...ResponseLayout} style={{ display: itemIndex...select': return ( <Col {...ResponseLayout} style={{ display: itemIndex...cascader': return ( <Col {...ResponseLayout} style={{ display: itemIndex...dayPicker': return ( <Col {...ResponseLayout} style={{ display: itemIndex...radio': return ( <Col {...ResponseLayout} style={{ display: itemIndex
item) state.cartItemCount++ state.cartTotalPrice += item.price }, removeFromCart(state, itemIndex...) { const item = state.cartItems[itemIndex] state.cartItems.splice(itemIndex, 1) state.cartItemCount...{ addToCart(context, item) { context.commit('addToCart', item) }, removeFromCart(context, itemIndex...) { context.commit('removeFromCart', itemIndex) }, incrementItemQuantity(context, item) {
然后最终返回了一个 ListView,我们可以去看一下这个 children: final List children = []; for (int itemIndex...= 0; itemIndex itemIndex) { CurvedAnimation opacity; if (itemIndex == route.selectedIndex...(parent: route.animation, curve: const Threshold(0.0)); } else { final double start = (0.5 + (itemIndex...child: InkWell( child: Container( padding: widget.padding, child: route.items[itemIndex...), onTap: () => Navigator.pop( context, _DropdownRouteResult(route.items[itemIndex
return this.itemLayout(this.numbers[itemIndex].toString()) //设置拖拽过程中显示 }) .onItemDrop...((event: ItemDragInfo, itemIndex: number, insertIndex: number, isSuccess: boolean....onItemDragStart((event: ItemDragInfo, itemIndex: number) => { //第一次拖拽此事件绑定的组件时,触发回调。...if (itemIndex == 0) { //禁止拖拽 return } return this.itemLayout(this.numbers[itemIndex].toString...onItemDrop((event: ItemDragInfo, itemIndex: number, insertIndex: number, isSuccess: boolean
. */ if (ScanDirectionIsForward(dir)) { if (++so->currPos.itemIndex > so->currPos.lastItem) {..._bt_steppage(scan, dir)) return false; } } /* OK, itemIndex says what to return */ currItem...* itemIndex is a cursor showing which entry was last returned to caller. */ int firstItem; /...* first valid index in items[] */ int lastItem; /* last valid index in items[] */ int itemIndex...= 0 '\000', moreRight = 1 '\001', nextTupleOffset = 48, firstItem = 0, lastItem = 0, itemIndex
/** 删除图片 */ deleteImv: function (e) { var imgArr = this.data.imgArr; var itemIndex = e.currentTarget.dataset.id...; imgArr.splice(itemIndex, 1); this.setData({ imgArr: imgArr }) //判断是否隐藏选择图片...}) } }, /** 显示图片 */ showImage: function (e) { var imgArr = this.data.imgArr; var itemIndex...= e.currentTarget.dataset.id; wx.previewImage({ current: imgArr[itemIndex], // 当前显示图片的http
Grid() { ... } .editMode(true) // 设置Grid进入编辑模式 .onItemDragStart((event: ItemDragInfo, itemIndex:...number) => { // 设置拖拽过程中显示的图形 this.movedItem = this.appInfoList[itemIndex]; // 记录原位置子组件信息 return...this.itemWhileDrag(); }) .onItemDrop((event: ItemDragInfo, itemIndex: number, insertIndex: number...时,说明有新增元素的事件发生 if (isSuccess && insertIndex itemIndex
代码如下: //以下是methods的一个方法: inVal(event,valIndex,itemIndex,condIndex,groupIndex){ let inValue=this.objDeepCopy...event.target.value.split("|")) this.settingList[groupIndex]['condition'][condIndex]['value'][itemIndex