Question

我有一个HTML页面。在其中我必须使用文档目录URL加载图像。这是html和javascript。

<html>
 <head>
  <script type="text/javascript">
    function fetchObjDetails(scanImageLeftURL, scanImageRightURL)
    {
        /* left image */
        var leftImg = new Image;
        leftImg.onload = function() {
        document.getElementById('left_foot').src = this.src;
        }   
        leftImg.src = scanImageLeftURL;

        /* right image */
        var rightImg = new Image;
        rightImg.onload = function() {
        document.getElementById('right_foot').src = this.src;
        }   
        rightImg.src = scanImageRightURL;
    }
    </script>
 </head>

 <body>
    <div class="container padall">
      <img alt="Left Foot" id="left_foot" src="" width="30%" />
      <img alt="Right Foot" id="right_foot" src="" width="30%" />
    </div>
</body>
</html>

这是我用来触发函数的客观c代码。

-(void)viewDidLoad
{
    [super viewDidLoad];

    NSString *fullURL = @"some live url";
    NSURL *url = [NSURL URLWithString:fullURL];
    NSURLRequest *requestObj = [NSURLRequest requestWithURL:url];
    webFormView.delegate=self;
    [webFormView loadRequest:requestObj];
}

    -(void)webViewDidFinishLoad:(UIWebView *)webView
    {
        NSString *leftImgURL = @"/var/mobile/Containers/Data/Application/95736371-EA3D-475D-942D-835A037F8795/Documents/LeftImage_1454405366000.jpg";

        NSString *rightImgURL = @"/var/mobile/Containers/Data/Application/95736371-EA3D-475D-942D-835A037F8795/Documents/RightImage_1454405366000.jpg";

        NSString *script = [NSString stringWithFormat:@"fetchObjDetails('%@','%@')", leftImgURL, rightImgURL];

        [webView stringByEvaluatingJavaScriptFromString:script];
    }

但是我没有在html端获得任何图像。有人可以告诉我这是正确的过程吗？

将文档目录中的图像注入ios中的html

0 个答案: