在Objective-C代码上找不到windowScriptObject方法

问题描述

我有一个 UIWebView 与我的应用程序，并希望从JavaScript调用 Objective-C 方法。
我发现的所有文档和教程，我看到的只是使用 windowScriptObject 方法，但在我的代码 Xcode 说，webView没有实例方法 -windowScriptObject 。

I have an UIWebView with my application and want to call Objective-C method from JavaScript.All documentation and tutorial that I found, I see is just uses the windowScriptObject method, but in my code Xcode says that webView dont have instance method -windowScriptObject.

出现了什么问题？

- (void)viewDidLoad
{
    [super viewDidLoad];
    UIWebView *webView = [[UIWebView alloc] initWithFrame:CGRectMake(0, 0, 320, 480)];

    NSString *indexPath = [[NSBundle mainBundle] pathForResource:@"index" ofType:@"html" inDirectory:@"www"];
    NSURL *url = [NSURL fileURLWithPath:indexPath];
    NSURLRequest *requestObj = [NSURLRequest requestWithURL:url];
    [webView loadRequest:requestObj];

    [self.view addSubview:webView];

    id win = [webView windowScriptObject]; // In this line, Xcode alert 'Instance method "-windowScriptObject" not found'
    [win setValue:@"yes" forKey:@"isExtended"];
}

推荐答案

windowScriptObject 似乎在iOS上不可用。

windowScriptObject seems not to be available on iOS. Reference

此外，请检查类似的问题：

Also, check similar question: how to use windowScriptObject on the iPhone?

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