WKWebView 中的 iOS Objective-C LocalStore [英] iOS Objective-C LocalStore in WKWebView

问题描述

我发现这个SO解释了如何使用 javascript 设置本地存储.

I found this SO that gives an explanation of how to set local storage using javascript.

我正在尝试将它从 Swift 翻译成 Objective-C.出于某种原因，它让我很不舒服，就像我缺少一个支架一样，但我似乎无法弄清楚.任何想法如何正确地将 Swift 翻译到 iOS?

I'm trying to translate it from Swift to Objective-C. For some reason it's throwing a fit at me like I'm missing a bracket but I can't seem to figure it out. Any ideas how to correctly translate that Swift to iOS?

这是我目前所拥有的:

- (void)webView:(WKWebView *)webView
didFinishNavigation:(WKNavigation *)navigation {

    [webView evaluateJavaScript:@"localStorage.getItem(\"key\")" completionHandler:^(id result, NSError *error) {
        if (error == nil) {
            [webView evaluateJavaScript:@"localStorage.setItem(\"key\", \"value\")" completionHandler:^(id result, NSError *error) {
                    if (error == nil) {
                        webView.reload();
                    }
            }
             }];
        }
    }];
}

推荐答案

确实，您的代码中有一个额外的括号.

Indeed, you have an extra bracket in your code.

- (void)webView:(WKWebView *)webView didFinishNavigation:(WKNavigation *)navigation {
    [webView evaluateJavaScript:@"localStorage.getItem(\"key\")" completionHandler:^(id result, NSError *error) {
    if (error == nil) {
        [webView evaluateJavaScript:@"localStorage.setItem(\"key\", \"value\")" completionHandler:^(id result, NSError *error) {
                if (error == nil) {
                    webView.reload();
                }
         }];
    }
}];

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