UIWebView可以使用以下内容：
[webView setKeyboardDisplayRequiresUserAction:NO] Call some JS function
如果webview是WKWebView,你怎么能这样做呢？
相关：How can I get a UIWebView to focus on a form input and bring up the keyboard?
解决方法
在深入研究Webkit源代码几周后,我已经设法通过在WKContentView上调用_startAssistingNode：userIsInteracting：blurPrevIoUsNode：userObject并覆盖userIsInteracting值来实现iOS 9的工作：
伪代码：
swizzle_intercept("WKContentView","_startAssistingNode:userIsInteracting:blurPrevIoUsNode:userObject:",&hackAssist);
void hackAssist (id self,SEL _cmd,void* arg0,BOOL arg1,BOOL arg2,id arg3) {
((void (*)(id,SEL,void*,BOOL,id))swizzle_interceptee(hackAssist))(self,_cmd,arg0,TRUE,arg2,arg3);
}
干杯!
