ios加载html，html中有按钮，点击事件demo摘录

html代码

JS与OC交互

.h文件

#import 
#import 
@protocol JSObjcDelegate 
- (void)call;
- (void)getCall:(NSString *)callString;
@end

@interface ViewController : UIViewController
@property (nonatomic, strong) JSContext *jsContext;
@property (strong, nonatomic)  UIWebView *webView;

@end

.m文件

#import "ViewController.h"
@interface ViewController ()
@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
}
-(void)viewDidAppear:(BOOL)animated{
    self.webView = [[UIWebView alloc]initWithFrame:CGRectMake(0, 20, [UIScreen mainScreen].bounds.size.width, [UIScreen mainScreen].bounds.size.height)];
    self.webView.delegate = self;
    
    NSString* path = [[NSBundle mainBundle] pathForResource:@"index" ofType:@"html"];
    NSURL* url = [NSURL fileURLWithPath:path];
    NSURLRequest* request = [NSURLRequest requestWithURL:url] ;
    [self.webView loadRequest:request];
    
    [self.view addSubview:self.webView];
}
- (void)webViewDidFinishLoad:(UIWebView *)webView {
    self.jsContext = [webView valueForKeyPath:@"documentView.webView.mainFrame.javaScriptContext"];
    self.jsContext[@"tianbai"] = self;
    self.jsContext.exceptionHandler = ^(JSContext *context, JSValue *exceptionValue) {
        context.exception = exceptionValue;
        NSLog(@"异常信息：%@", exceptionValue);
    };
}
- (void)call{
    NSLog(@"call");
    // 之后在回调js的方法Callback把内容传出去
    JSValue *Callback = self.jsContext[@"Callback"];
    //传值给web端
    [Callback callWithArguments:@[@"唤起本地OC回调完成"]];
}
- (void)getCall:(NSString *)callString{
    NSLog(@"Get:%@", callString);
    // 成功回调js的方法Callback
    JSValue *Callback = self.jsContext[@"alerCallback"];
    [Callback callWithArguments:nil];
    
//    直接添加提示框
//    NSString *str = @"alert('OC添加JS提示成功')";
//    [self.jsContext evaluateScript:str];

}
@end