Question

我在WKWebView中拦截某些HTTP请求时遇到问题（我使用目标C）。似乎未调用definePolicyForNavigationAction。有人可以帮我解决我可能做错的事情吗？

我首先从库中将WKWebview组件添加到Main.Storyboard

然后我将以下内容添加到ViewController.h

#import <WebKit/WebKit.h>

@interface ViewController : UIViewController<UIAlertViewDelegate, WKUIDelegate, WKNavigationDelegate>

@property (strong, nonatomic) IBOutlet WKWebView *webView;

@end

然后到ViewController.m

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

@synthesize webView;

- (void)viewDidLoad
{
    [super viewDidLoad];
    webView = [[WKWebView alloc] initWithFrame:[[self view] bounds]];
    NSURL *url = [NSURL URLWithString:@"https://url.com"];
    NSURLRequest *urlReq = [NSURLRequest requestWithURL:url];

    [webView loadRequest:urlReq];
    self.view = webView;
}


- (void)webView:(WKWebView *)webView decidePolicyForNavigationAction:(WKNavigationAction *)navigationAction decisionHandler:(void (^)(WKNavigationActionPolicy))decisionHandler {
    NSLog(@"decidePolicyForNavigationAction");
    if (decisionHandler) {
        NSLog(@"decidePolicyForNavigationAction2");
        decisionHandler(WKNavigationActionPolicyAllow);
    }
}

Answer 1

更改此：

[webView loadRequest:urlReq];

对此：

webView.navigationDelegate = self;
[webView loadRequest:urlReq];

Answer 2

好吧，我终于找到了问题:) 此属性阻止了我的NSLog：“ OS_ACTIVITY_MODE”：“禁用

尝试根据WKWebView中的当前URL从外部打开PDF，但不会触发DecisionPolicyForNavigationAction

2 个答案: