如何在ios运行java脚本直到＆＃34; DONE＆＃34; - IOS

Question

如何在ios中运行java脚本，直到＆＃34; DONE＆＃34;

UIViewController *webViewController = [[UIViewController alloc] init];
UIWebView *uiWebView = [[UIWebView alloc] initWithFrame: CGRectMake(0,0,self.view.frame.size.width,self.view.frame.size.height)];
[uiWebView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:urlToken]]];

NSString *javaScript=[NSString stringWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"BOJavaScript" ofType:@"js"] encoding:NSUTF8StringEncoding error:nil];
[uiWebView stringByEvaluatingJavaScriptFromString:javaScript];

Answer 1

方法stringByEvaluatingJavaScriptFromString在主线程上运行（UIWebView是一个UI元素），它返回NSString。不需要等待＆＃34;作出回应。

Answer 2

在MainViewController.h文件中

@interface MainViewController :<UIWebViewDelegate>

在文件MainViewController.m

中

- (void)webViewDidFinishLoad:(UIWebView *)webView
{
    NSString *javaScript=[NSString stringWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"BOJavaScript" ofType:@"js"] encoding:NSUTF8StringEncoding error:nil];
    [uiWebView stringByEvaluatingJavaScriptFromString:javaScript];
}