WKWebView返回某个历史页面

WKWebView

/**
*  在发送请求之前，决定是否跳转
*
*  @param webView          实现该代理的webview
*  @param navigationAction 当前navigation
*  @param decisionHandler  是否调转block
*/
- (void)webView:(WKWebView *)webView decidePolicyForNavigationAction:(WKNavigationAction *)navigationAction decisionHandler:(void (^)(WKNavigationActionPolicy))decisionHandler {

if (navigationAction.navigationType==WKNavigationTypeBackForward) {                  //判断是返回类型
if (webView.backForwardList.backList.count>0) {                                  //得到栈里面的list
WKBackForwardListItem * item = webView.backForwardList.currentItem;          //得到现在加载的list
for (WKBackForwardListItem * backItem inwebView.backForwardList.backList) { //循环遍历，得到你想退出到
//添加判断条件
[webView goToBackForwardListItem:[webView.backForwardList.backListfirstObject]];
}
}
}

//允许跳转
decisionHandler(WKNavigationActionPolicyAllow);
}