Calling Javascript using UIWebView
Simple: You try to execute the JS function from Objective-C before the page even has been loaded.
Implement the UIWebView's delegate method webViewDidFinishLoad: in your UIViewController and in there you call [graphView stringByEvaluatingJavaScriptFromString:@"methodName()"]; to make sure the function gets called after the page has been loaded.
To clarify a little bit more.
.h - implement the UIWebViewDelegate
@interface YourViewController : UIViewController <UIWebViewDelegate>@property (weak, nonatomic) IBOutlet UIWebView *webView;@end.m
- (void)viewDidLoad{ [super viewDidLoad]; NSString *path = @"http://www.google.com"; [_webView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:path]]]; _webView.delegate = self; //Set the webviews delegate to this}- (void) webViewDidFinishLoad:(UIWebView *)webView{ //Execute javascript method or pure javascript if needed [_webView stringByEvaluatingJavaScriptFromString:@"methodName();"];}You could also assign the delegate from storyboard instead of doing it in the code.