OC与js混合开发

在iOS开发中，大多必然会用到UIWebView，所以我们有必要去研究oc与js的相互调用。

若在app中加载的webView界面进行交互，需要在移动端得到响应，并且进行传值，使oc的代码（方法）得到触发，那么请参照下面的代码实现。

首先在js代码中需要有如下代码

js调用OC

function judge() {

window.location.href = "objc://jsToOC#param#李xu#param#http://www.baidu.com";

}

</script>

<button onclick="judge()">点我调用OC</button>

然后在OC代码中加入如下代码即可

#pragma mark -- UIWebViewDelegate委托定义方法

- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType{

NSString *path = [[request URL] absoluteString];

if ([[UIDevice currentDevice].systemVersion doubleValue] >= 7.0) {

path = [path stringByRemovingPercentEncoding];

}else{

path = [path stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];

}

if ([path hasPrefix:@"ios"]||[path hasPrefix:@"objc"]) {

NSString *method = [path substringFromIndex:@"objc://".length];

NSArray *sels = [method componentsSeparatedByString:@"#param#"];

SEL todoM;

if (sels.count>1) {

todoM = NSSelectorFromString([NSString stringWithFormat:@"%@:",sels[0]]);

NSMutableArray *params = [NSMutableArray array];

for (int i=1; i<sels.count; i++) {

[params addObject:sels[i]];

}

if ([self respondsToSelector:todoM]) {

[self performSelector:todoM withObject:params afterDelay:0];

}

}else if(sels.count==1){

todoM = NSSelectorFromString([NSString stringWithString:sels[0]]);

if ([self respondsToSelector:todoM]) {

[self performSelector:todoM withObject:nil afterDelay:0];

}

return NO;

}

return YES;

}

//触发方法

- (void)jsToOC:(NSArray *)params

{

NSLog(@"%@", params);

　LXHyperlinkController *vc = [[LXHyperlinkController alloc] init];

vc.title = params[0];

vc.url = params[1];

[self.navigationController pushViewController:vc animated:YES];

}

这样当点击按钮后OC方法 “jsToOC:” 会得到触发，从而实现了OC与JS的混合开发

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