我试图使用angular2 + typescript来获取点按事件的数据:
这是组件HTML:
<RadListView row="1" [items]="groceryList" [class.visible]="listLoaded" (tap)="seeItem($event)"
swipeActions="true" (itemSwipeProgressStarted)="onSwipeCellStarted($event)">
<ng-template let-item="item">
<Label [text]="item.name" class="p-15 list-item"></Label>
</ng-template>
<GridLayout *tkListItemSwipeTemplate columns="*, auto">
<StackLayout id="delete-view" col="1" (tap)="delete($event)" class="delete-view">
<Image src="~/images/delete.png"></Image>
</StackLayout>
</GridLayout>
</RadListView>
这是组件代码:
seeItem(args: ListViewEventData) {
console.log('item ', <Grocery>args.object.bindingContext);
console.log('in case');
}
当我从ListView中点击一个元素时,我得到了console.log:
[Eric Guzmán’s iPhone]: item undefined
[Eric Guzmán’s iPhone]: in case
&#34;删除&#34;当点击时,event(在此组件中)使用相同的逻辑:
delete(args: ListViewEventData) {
let grocery = <Grocery>args.object.bindingContext;
this.groceryService.delete(grocery.id)
.subscribe(() => {
let index = this.groceryList.indexOf(grocery);
this.groceryList.splice(index, 1);
});
}
我是NativeScript的初学者,我很感激帮助,
答案 0 :(得分:-1)
如果您希望获得该项目,则需要进行以下更改
替换
<ng-template let-item="item">
<Label [text]="item.name" class="p-15 list-item"></Label>
</ng-template>
与
<ng-template let-item="item">
<Label [text]="item.name" (tap)="seeItem(item)" class="p-15 list-item"></Label>
</ng-template>
并在功能中进行更改
seeItem(item: Grocery) {
console.log('item ', item);
console.log('in case');
}
试试这个应该有效。