iOS开发——JS网页交互——javaScript

来源：互联网发布：迪卡侬天猫知乎编辑：程序博客网时间：2024/06/06 02:15

JS中调用OC

#import "ViewController.h"@interface ViewController () <UIWebViewDelegate>@end@implementation ViewController- (void)viewDidLoad{    [super viewDidLoad];    // 1.webView    UIWebView *webView = [[UIWebView alloc] init];    webView.frame = self.view.bounds;    webView.delegate = self;    [self.view addSubview:webView];        // 2.加载网页    NSURL *url = [[NSBundle mainBundle] URLForResource:@"test" withExtension:@"html"];    NSURLRequest *request = [NSURLRequest requestWithURL:url];    [webView loadRequest:request];}#pragma mark - UIWebViewDelegate- (void)webViewDidFinishLoad:(UIWebView *)webView{}/** *  webView每当发送一个请求之前，都会先调用这个方法（能拦截所有请求） */- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType{    NSString *url = request.URL.absoluteString;    NSRange range = [url rangeOfString:@"hm://"];    NSUInteger loc = range.location;    if (loc != NSNotFound) { // url的协议头是hm，也可以随便起        // 方法名        NSString *method = [url substringFromIndex:loc + range.length];                // 转成SEL//        SEL sel = NSSelectorFromString(method);//        [self performSelector:sel withObject:nil];        [self performSelector:NSSelectorFromString(method) withObject:nil];    }    return YES;}/** *  打电话 */- (void)call{    NSLog(@"call----");}/** *  打开照相机 */- (void)openCamera{    NSLog(@"openCamera----");}@end

HTML网页代码

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