English 中文(简体)
我怎么能从贾瓦古斯提目标方法?
原标题:How can I call Objective-C methods from JavaScript?

我想显示<代码>SQLite。 数据基内容载于IDWebView。 如果有当地超文本。 On Bodyload in html file calls Javacast Function. 在贾瓦语中,如何用客观的方法。 如何从目标c到Java Srcipt收集数据。

<html>
    <head>
        <!-- a script inline --> 
        <script language="JavaScript" TYPE="text/javascript">
            <!--
            function myJsFunc() 
            { 

                //here i want to call objective-c methods.

            } 
            // -->
            </script>
        </head>
    <Body Bgcolor=#800000 onload="myJsFunc(); return true;">

        </Body>
</html>

Objective-C code ......

- (void)viewDidLoad
{
        [super viewDidLoad];
        NSString *path;
    NSBundle *thisBundle = [NSBundle mainBundle];
    path = [thisBundle pathForResource:@"Demo" ofType:@"html"];

    // make a file: URL out of the path
    NSURL *instructionsURL = [NSURL fileURLWithPath:path];
    [myWebView loadRequest:[NSURLRequest requestWithURL:instructionsURL]];
    [self.view addSubView:myWebView];
}
-(NSArray*)FetchingDataFromDataBase{

    // Code for retriving data from SQlite data Base, and return NSArray;
    return myArray;
}

在职能<代码>myJSFunc (>)中,可使用<代码>-(NSArray*)FetchingDataFromDataBase.。

最佳回答

坟墓提供的博客员额解释了如何做到这一点。

- (BOOL)webView:(UIWebView *)webView2 
      shouldStartLoadWithRequest:(NSURLRequest *)request 
      navigationType:(UIWebViewNavigationType)navigationType

如果您的班级有上述方法,在装上新页之前就将采用这种方法。 只有当这种方法返回了YES时,才处理新的装载要求。 我们利用这一机制向目标C职能进行沟通。

问题回答

暂无回答




相关问题
selected text in iframe

How to get a selected text inside a iframe. I my page i m having a iframe which is editable true. So how can i get the selected text in that iframe.

How to fire event handlers on the link using javascript

I would like to click a link in my page using javascript. I would like to Fire event handlers on the link without navigating. How can this be done? This has to work both in firefox and Internet ...

How to Add script codes before the </body> tag ASP.NET

Heres the problem, In Masterpage, the google analytics code were pasted before the end of body tag. In ASPX page, I need to generate a script (google addItem tracker) using codebehind ClientScript ...

Clipboard access using Javascript - sans Flash?

Is there a reliable way to access the client machine s clipboard using Javascript? I continue to run into permissions issues when attempting to do this. How does Google Docs do this? Do they use ...

javascript debugging question

I have a large javascript which I didn t write but I need to use it and I m slowely going trough it trying to figure out what does it do and how, I m using alert to print out what it does but now I ...

Parsing date like twitter

I ve made a little forum and I want parse the date on newest posts like twitter, you know "posted 40 minutes ago ","posted 1 hour ago"... What s the best way ? Thanx.

热门标签