使用Native UISearchBar在WKWebView上搜索某个地方

I'm still a beginner with Objective C I developed a website using cakephp and I used a paid api for the map Now I'm trying to build an iOS app but they don't have an iOS api so I only need to display the map into WKWebView I removed all the buttons and created native buttons I succeed to to inject JS to the native buttons using I'm still a beginner with Objective C I develop