我无法将字符串绑定到angular js中的html元素 [英] I can't bind string to html element in angular js

问题描述

对不起，我是ionic(angularjs)的新手.我尝试从字符串进行绑定，该字符串包含youtub视频网址.

 < iframe宽度="280" height ="150" src ="//www.youtube.com/embed/UAHEQnOtzuw?list=UUj4nCgtjKJppK_IZeY8TUJg" frameborder ="0" allowfullscreen></iframe> 

在控制器中

  $ scope.videoElement.str = $ scope.item.restData.videos [0] .link; 

在html中

 < div ng-bind-html ="videoElement.str"></div> 

但是我什么都看不到.:(

这是屏幕截图. http://screencast.com/t/Fgct1sdnOon

如何解决此问题?谢谢你的进步.

解决方案

除非使用 $ sce ，否则链接不会附加到div.继续使用 iframe 并将网址作为字符串嵌入为:

< iframe宽度="280" height ="150" ng-src ="{{videoElement.str}}" frameborder ="0" allowfullscreen></iframe>

如果您仍然需要将iframe绑定到div，则可能可以通过以下方式实现:

控制器:

  $ scope.frame ='< iframe src ='+ $ scope.videoElement.str +'"></iframe>';; 

查看:

 < div ng-bind-html ="frame | safeHtml"> 

safeHtml是用于安全绑定html的过滤器指令，并使用 $ sce -

此外，如上所述，在app.js或控制器末端之后添加 safeHtml 指令.

I am sorry, i am new on ionic(angularjs). I have tried to bind from string, the string is containing youtub video url.

<iframe width="280" height="150" src="//www.youtube.com/embed/UAHEQnOtzuw?list=UUj4nCgtjKJppK_IZeY8TUJg" frameborder="0" allowfullscreen></iframe>

In controller

$scope.videoElement.str = $scope.item.restData.videos[0].link;

In html

<div ng-bind-html="videoElement.str"></div>

but i can't see nothing. :(

Here is screenshot. http://screencast.com/t/Fgct1sdnOon

How can i fix this issue? Thank you for an advance.

解决方案

A link would not append to a div unless you make use of $sce. Keep using the iframe and embed the url as string as:

<iframe width="280" height="150" ng-src="{{videoElement.str}}" frameborder="0" allowfullscreen></iframe>

If you still need to bind the iframe to a div then this is probably how you can achieve it:

Controller:

$scope.frame= '<iframe src="' + $scope.videoElement.str + '"></iframe>';

View:

<div ng-bind-html="frame| safeHtml">

Where safeHtml is a filter directive to safely bind the html and makes use of $sce - Documentation

Include this in the app:

app.filter('safeHtml', function ($sce) {
    return function (val) {
        return $sce.trustAsHtml(val);
    };
});

UPDATE:

If $scope.videoElement.str is the Iframe link, then the below code would suffice as:

<div ng-bind-html="videoElement.str | safeHtml">

Also, add the safeHtml directive as mentioned above in the app.js or after the end of controller.

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