Question

I had to do an update in my WebView from the Appdelegate.m

I try it like this:

[self performSelectorOnMainThread:@selector(loadWebViewWithContent:) withObject:requestObj waitUntilDone:NO];

The loadWebViewWithContent Method works great from ViewController.m, but not from the Appdelegate.

I allready wrote this in my Appdelegate.h:

-(void)loadWebViewWithContent:(NSURLRequest *)requestObj;

Whats wrong? Please help me. I´m still a big Noob in IOS.

Error:

-[AppDelegate loadWebViewWithContent]: unrecognized selector sent to instance 0x1f86a5e0*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[AppDelegate loadWebViewWithContent]: unrecognized selector sent to instance 0x1f86a5e0'

UPDATE(new try): UIViewController *view = [[UIViewController alloc] init];
[view performSelectorOnMainThread:@selector(loadWebViewWithContent:) withObject:requestObj waitUntilDone:NO];

Answer 1

It seems you are calling method in AppDelegate itself. But there is no method in AppDelegate called loadWebViewWithContent:

if you want to call the method from AppDelegate to ViewController, you should use, ViewController instance to call that method, use like this

[viewController performSelectorOnMainThread:@selector(loadWebViewWithContent:) withObject:requestObj waitUntilDone:NO];