iOS wkwebview调起打电话功能

有两种方法，

第一种：

- (void)webView:(WKWebView *)webView didStartProvisionalNavigation:(null_unspecified WKNavigation *)navigation {

[[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:YES];

//打印携带电话的URL

NSLog(@"URL: %@", webView.URL);

NSString *strURL = [webView.URL.absoluteString stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];

NSArray * array = [strURL componentsSeparatedByString:@"//"];

if ([[strURL substringWithRange:NSMakeRange(0, 3)] isEqualToString:@"tel"]) {

NSMutableString* str=[[NSMutableString alloc] initWithFormat:@"%@", [NSString stringWithFormat:@"telprompt://%@",array[1]]];

[[UIApplication sharedApplication] openURL:[NSURL URLWithString:str]];

}

}

有时候上面的这种方法可能会出现一些不确定的问题，导致有可能吊不起打电话的功能，

第二种：

- (void)webView:(WKWebView *)webView decidePolicyForNavigationAction:(WKNavigationAction *)navigationAction decisionHandler:(void (^)(WKNavigationActionPolicy))decisionHandler {

NSURL *URL = navigationAction.request.URL;

NSString *scheme = [URL scheme];

if ([scheme isEqualToString:@"tel"]) {

NSString *resourceSpecifier = [URL resourceSpecifier];

NSString *callPhone = [NSString stringWithFormat:@"telprompt:%@", resourceSpecifier];

/// 防止iOS 10及其之后，拨打电话系统弹出框延迟出现

dispatch_async(dispatch_get_global_queue(0, 0), ^{

[[UIApplication sharedApplication] openURL:[NSURL URLWithString:callPhone]];

});

}

decisionHandler(WKNavigationActionPolicyAllow);

}