移动应用中许多复杂的且经常改动的页面会使用H5进行代替native，这里就会使用到js和webview的交互
iOS里面，UIWebView提供了方法stringByEvaluatingJavaScriptFromString:使js和webview互通
这里我提供一种思路，仅供参考
1.加载js函数
var Test = {};
Test.platform = {
name: 'IOS'
};
// 返回App识别ID
Test.getAppId = function(){
return '[AppId]';
};
// 返回用户Id
Test.getUserId = function(){
return '[UserId]';
};
// 返回当前AppVersion
Test.getAppVersion = function(){
return '[AppVersion]';
};
Test.open = function(str){
setTimeout(function(){
document.location = 'Test://open/'+str;
},50);
};
window.Test = Test;
2.简单几个函数，加载前替换掉自己的value，
for (NSString *key in dict) {
NSString *placekey = [NSString stringWithFormat:@"[%@]", key];
NSString *value = [dict[key] stringValue];
if (! value || [value isEqual:[NSNull null]]) {
jsString = [jsString stringByReplacingOccurrencesOfString:placekey withString:@"null"];
}else{
jsString = [jsString stringByReplacingOccurrencesOfString:placekey withString:value];
}
}
3.加入webview的js里面：
[webView stringByEvaluatingJavaScriptFromString:jsString];
当js调用native的操作时候，可以使用Test.open(firstViewController?paramter=123)
native的delegate将会调用：
- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType
这里的request.url将会是：
Test://open/firstViewController?paramter=123
进入我们自己解析方法，对此url进行不同的解析和跳转
NSString *requestString = [[request URL] absoluteString];
NSArray *components = [requestString componentsSeparatedByString:@"://"]; if (components[0] && [components count] > 1) {//如果协议抬头为Test或者为其他则走自定义流程
NSString *content = components[1];
NSArray *controller = [content componentsSeparatedByString:@"/"];
if (controller.count > 1 && [controller[0] isEqual:@"open"]) {//打开特定的controller
[self openController:controller[1]];
}
} return NO;