Question

首先，我了解如何在amp-html中setState使用amp-bind，如下所示：

<amp-selector on="select:AMP.setState({ guess: event.targetOption })">
    <div class="button" option="a">Answer 1</div>
    <div class="button" option="b">Answer 2</div>
    <div class="button" option="c">Answer 3</div>
</amp-selector>

现在说我选择按钮Answer 2，然后printState()上的状态将显示为{"guess":"b"}，此div将不再被隐藏：

<div hidden [hidden]="!guess">
    <h4>You have the correct answer!</h4>
</div>

我的问题是：一旦隐藏的div变得可见，如何设置另一个键/值？换句话说，我怎样才能让它发挥作用？

<div hidden [hidden]="!guess" on="WhenThisIsVisible:AMP.setState({"text":"hi!"})"></div>

我可以使用tap:代替我的假装活动，但我希望用户不必点击div setState。

一旦div显示，printState()将返回{"guess":"b","text":"hi!"}

Answer 1

您是否可以在div中使用span，然后使用以下内容：

<span [text]="text"></span>

以下是完整的样本：

<!doctype html>
<html ⚡>
<head>
  <meta charset="utf-8">
  <title>My AMP Page</title>
  <link rel="canonical" href="self.html" />
  <meta name="viewport" content="width=device-width,minimum-scale=1">
  <style amp-boilerplate>body{-webkit-animation:-amp-start 8s steps(1,end) 0s 1 normal both;-moz-animation:-amp-start 8s steps(1,end) 0s 1 normal both;-ms-animation:-amp-start 8s steps(1,end) 0s 1 normal both;animation:-amp-start 8s steps(1,end) 0s 1 normal both}@-webkit-keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}@-moz-keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}@-ms-keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}@-o-keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}@keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}</style><noscript><style amp-boilerplate>body{-webkit-animation:none;-moz-animation:none;-ms-animation:none;animation:none}</style></noscript>
  <script async src="https://cdn.ampproject.org/v0.js"></script>
  <script async custom-element="amp-bind" src="https://cdn.ampproject.org/v0/amp-bind-0.1.js"></script>
  <script async custom-element="amp-selector" src="https://cdn.ampproject.org/v0/amp-selector-0.1.js"></script>
  <style amp-custom>
    h1 {
      margin: 1rem;
    }
  </style>
</head>
<body>
  <amp-selector on="select:AMP.setState({ guess: event.targetOption, text: 'hi' })">
    <div class="button" option="a">Answer 1</div>
    <div class="button" option="b">Answer 2</div>
    <div class="button" option="c">Answer 3</div>
</amp-selector>
  <div hidden [hidden]="!guess">
    <span [text]="text"></span>
    <h4>You have the correct answer!</h4>
</div>
</body>
</html>

当div在amp-html中可见时，将“setState”的事件

1 个答案: