今天遇到了第一次點(diǎn)擊web瀏覽器沒(méi)問(wèn)題 ，第二次就崩潰
報(bào)錯(cuò)：WKWebView was deallocated while key value observers were still registered with it
因?yàn)榭刂破鱠ealloc之前沒(méi)有移除kvo
[self.webView addObserver:self
forKeyPath:@"title"
options:NSKeyValueObservingOptionNew
context:nil];
解決辦法：
-(void)dealloc{
[_webView removeObserver:self forKeyPath:@"title"];
[[NSNotificationCenter defaultCenter] removeObserver:self];
}
