Question

我正在使用谷歌驱动器选择器

问题是当我只希望选择器出现在按钮点击而非页面加载时，它会自动加载。

在正文中，这是加载选择器的脚本

  <script type="text/javascript" src="https://apis.google.com/js/api.js?onload=onApiLoad"></script>

我只希望在点击按钮时执行此脚本。以下是整个代码：

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
  <head>
    <meta http-equiv="content-type" content="text/html; charset=utf-8"/>
    <title>Google Picker Example</title>

    <script type="text/javascript">

      // The Browser API key obtained from the Google Developers Console.
      var developerKey = 'xxxxxxxYYYYYYYY-12345678';

      // The Client ID obtained from the Google Developers Console. Replace with your own Client ID.
      var clientId = "1234567890-abcdefghijklmnopqrstuvwxyz.apps.googleusercontent.com"

      // Scope to use to access user's photos.
      var scope = ['https://www.googleapis.com/auth/photos'];

      var pickerApiLoaded = false;
      var oauthToken;

      // Use the API Loader script to load google.picker and gapi.auth.
      function onApiLoad() {
        gapi.load('auth', {'callback': onAuthApiLoad});
        gapi.load('picker', {'callback': onPickerApiLoad});
      }

      function onAuthApiLoad() {
        window.gapi.auth.authorize(
            {
              'client_id': clientId,
              'scope': scope,
              'immediate': false
            },
            handleAuthResult);
      }

      function onPickerApiLoad() {
        pickerApiLoaded = true;
        createPicker();
      }

      function handleAuthResult(authResult) {
        if (authResult && !authResult.error) {
          oauthToken = authResult.access_token;
          createPicker();
        }
      }

      // Create and render a Picker object for picking user Photos.
      function createPicker() {
        if (pickerApiLoaded && oauthToken) {
          var picker = new google.picker.PickerBuilder().
              addView(google.picker.ViewId.PHOTOS).
              setOAuthToken(oauthToken).
              setDeveloperKey(developerKey).
              setCallback(pickerCallback).
              build();
          picker.setVisible(true);
        }
      }

      // A simple callback implementation.
      function pickerCallback(data) {
        var url = 'nothing';
        if (data[google.picker.Response.ACTION] == google.picker.Action.PICKED) {
          var doc = data[google.picker.Response.DOCUMENTS][0];
          url = doc[google.picker.Document.URL];
        }
        var message = 'You picked: ' + url;
        document.getElementById('result').innerHTML = message;
      }
    </script>
  </head>
  <body>
    <div id="result"></div>

    <!-- The Google API Loader script. -->
    <script type="text/javascript" src="https://apis.google.com/js/api.js?onload=onApiLoad"></script>
  </body>
</html>

Answer 1

您可以尝试使用jQuery中的getScript方法。它非常简单，并会在点击事件期间加载文件。

$( '#button' ).on( 'click', function() {
    $.getScript( 'url to your js file', function( data, textStatus, jqxhr ) {
        // do some stuff after script is loaded
    } );
} );

单击按钮时执行javascript脚本

1 个答案: