问题一描述:
iOS9和iOS10用WKWebView加载URL都没有问题,iOS11却是一片空白
可能是用了NSMutableURLRequest,iOS11貌似不支持NSMutableURLRequest,无论是用UIWebView还是WKWebView,都不支持NSMutableURLRequest
解决方法参考
if #available(iOS 11, *) {
let request = NSURLRequest.init(url: URL.init(string: urlStr)!)
self.wkWebView.load(request as URLRequest)
}else{
let request = NSMutableURLRequest.init(url: URL.init(string: urlStr)!, cachePolicy: NSURLRequest.CachePolicy.reloadIgnoringLocalAndRemoteCacheData, timeoutInterval: 60)
request.httpMethod = "GET"
request.httpBody = ("token=" + tokenValue()).data(using: String.Encoding.utf8)
self.wkWebView.load(request as URLRequest)
}
问题二描述：在用iPhone X 的模拟器进入Hybrid项目时，发现一进去就崩溃，崩溃信息少的可怜：
libc++abi.dylib: terminating with uncaught exception of type NSException
靠这玩意儿肯定是定位不出bug的，不过全局断点还是给出了一点信息：
- (void)webView:(WKWebView *)webView decidePolicyForNavigationAction:(WKNavigationAction *)navigationAction decisionHandler:(void (^)(WKNavigationActionPolicy))decisionHandler {
NSString *requestString = navigationAction.request.URL.absoluteString;
//对外链、拨号和跳转appstore做特殊处理
UIApplication *app = [UIApplication sharedApplication];
NSURL *url = [navigationAction.request URL];
//电话
//此处省略若干业务代码
if ([url.absoluteString containsString:@"itunes.apple.com"])
{
if ([app canOpenURL:url])
{
[app openURL:url];
decisionHandler(WKNavigationActionPolicyCancel);
}
}
if ([requestString hasPrefix:@"easy-js:"]) {
[self handleRequestString:requestString webView:(EasyJSWebView *)webView.superview];
decisionHandler(WKNavigationActionPolicyCancel);
}
if ([self.realDelegate respondsToSelector:@selector(webView:decidePolicyForNavigationAction:decisionHandler:)])
{
[self.realDelegate webView:webView decidePolicyForNavigationAction:navigationAction decisionHandler:decisionHandler];
}
decisionHandler(WKNavigationActionPolicyAllow);//崩在这里
}
仍然不知道为啥子崩在这儿？之前一直是没问题的啊？？
小Tips：
为了获取一些堆栈信息以便于快准狠的定位问题，可以在main函数里：
int main(int argc, char * argv[]) {
@try {
@autoreleasepool
{
return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class]));
}
}
@catch (NSException* exception)
{
NSDebugLog(@"Exception=%@nStack Trace:%@", exception, [exception callStackSymbols]);
}
}
最终得到一条关键报错：
Completion handler passed to -[WKPrivateNavigationDelegate webView:decidePolicyForNavigationAction:decisionHandler:] was called more than once
