在我尝试NativeScript教程“Grocery”之后，我发现它的按钮很难点击它，因为点按区域太小，所以我想通过更新布局文件将图像高度增加到下面的内容 . 但是，图像似乎不在中心（图像如下） .
如何在NativeScript中实现此目的？
list.html
<ActionBar title="Groceries">
<ActionItem text="Share" (tap)="share()"
android.systemIcon="ic_menu_share_holo_dark"
ios.systemIcon="9" ios.position="right"></ActionItem>
</ActionBar>
<GridLayout rows="auto, *">
<GridLayout row="0" columns="*, auto" class="add-bar">
<TextField #groceryTextField [(ngModel)]="grocery" hint="Enter a grocery item" col="0"></TextField>
<StackLayout class="delete-container" height="100%" (tap)="add()" col="1" >
<Image src="res://add" stretch="none" horizontalAlignment="center"></Image>
</StackLayout>
</GridLayout>
<ListView [items]="groceryList" row="1" class="small-spacing" [class.visible]="listLoaded">
<ng-template let-item="item">
<GridLayout columns="*, auto">
<Label col="0" [text]="item.name" class="medium-spacing"></Label>
<StackLayout col="1" class="delete-container" height="100%" (tap)="delete(item)">
<Image src="res://delete"></Image>
</StackLayout>
</GridLayout>
</ng-template>
</ListView>
<ActivityIndicator
[busy]="isLoading" [visibility]="isLoading ? 'visible' : 'collapse'"
row="1" horizontalAlignment="center" verticalAlignment="center"></ActivityIndicator>
</GridLayout>
1 回答
您应该查看NS的FlexBox布局 .
这非常有用：http://docs.nativescript.org/cookbook/ui/layouts/flexbox-layout