单击后在ionic2中切换图标 [英] Switch icon in ionic2 after click
本文介绍了单击后在ionic2中切换图标的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我有项目列表,每个项目都有按钮 ion-icon
I have list of item, each of items has button with ion-icon
<ion-list>
<ion-item *ngFor="let item of items">
<ion-avatar item-left>
<img src="{{item.logo}}" />
</ion-avatar>
<h2>{{item.name}}</h2>
<button clear (click)="changeIcon(shop)" item-right>
<ion-icon name="ios-heart-outline" ></ion-icon>
</button>
</ion-item>
</ion-list>
我想将此图标更改为 ios-heart
点击按钮后。
and I want to change this icon to ios-heart
after click on button.
推荐答案
就像你可以在 Ionic2 docs 你可以使用这样的变量设置图标:
Just like you can see in Ionic2 docs you can set the icon using a variable like this:
In您的观点:
<ion-icon [name]="myIcon"></ion-icon>
然后在你的代码中:
export class MyFirstPage {
// use the home icon
myIcon: string = "home";
}
所以在你的情况下,我会为每个元素添加图标名称数组
So in your case, I'd add the icon name to each element in the array
public items: [] = [
{
"logo" : "...",
"name" : "...",
"iconName" : "ios-heart-outline"
},
//...
];
然后在您的视图中,我将更改此部分代码:
Then in your view, I 'd change this part of the code:
<button clear (click)="changeIcon(item)" item-right>
<ion-icon [name]="item.iconName" ></ion-icon>
</button>
请注意,现在在 changeIcon()
方法我们收到项
所以我们所要做的就是更改图标的名称,如下所示:
Please notice that now in the changeIcon()
method we receive the item
so all we have to do is changing the name of the icon like this:
public changeIcon(theItem): void {
theItem.iconName = "ios-heart";
}
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