call method in UIButton Action in another class - objective-c

Question

I have one class UIViewController and Inside I have one button , I want to call one method from another class
would you please help me to implement the action for my button
I'm new to objective-c
my button Action in UIViewController:
- (IBAction)ActionButton:(id)sender {
NSLog(#"A1");
}
my method in WebViewController:
-(void)loadWebView{
NSURL *url = [NSURL fileURLWithPath:[ [ NSBundle mainBundle ] pathForResource:
#"TestName/TestName1/Test1Name1" ofType:#"html" ]];
NSURLRequest *request = [NSURLRequest requestWithURL:url];
[webView loadRequest:request];
}
my question is how to call this method to my button since it's in another view?
I have one method in my WebViewController and I want to call it from one button that I have in UIViewController

Answer 1

You could try this:
Say you have a class called ViewA which implements the method.
If you want the button action to invoke that method, you need to have an instance of another class.
-(void)loadWebView{
NSURL *url = [NSURL fileURLWithPath:[ [ NSBundle mainBundle ] pathForResource:
#"TestName/TestName1/Test1Name1" ofType:#"html" ]];
NSURLRequest *request = [NSURLRequest requestWithURL:url];
[webView loadRequest:request];
}
For you button VIEW:
#import "ViewA.h"
ViewA *instanceOfViewA;
// assign an instance to instanceOfViewA
Your Button method:
- (IBAction)ActionButton:(id)sender {
NSLog(#"A1");
[yourButton addTarget:instanceOfViewA
action:#selector(loadWebView)
forControlEvents:UIControlEventTouchUpInside];
}

Answer 2

You can use notification or delegate or have the reference of WebViewController in your UIViewController ..

Answer 3

You may store a reference to WebViewController in your main view controller and send a message to that reference, check my answer.
code:
in MyViewController.h:
#class WebViewController;
...
#interface MyViewController
{
...
}
#property (nonatomic, retain) IBOutlet WebViewController* webViewController;
...
in MyViewController.m:
#import "WebViewController.h"
...
#implementation MyViewConroller
#synthesize webViewController;
...
- (void) dealloc {
...
self.webViewController = nil;
...
[super dealloc];
}
Assign your WebViewController (like you did with buttons and stuff) in IB and then in code:
- (IBAction)ActionButton:(id)sender {
NSLog(#"A1");
[self.webViewController loadWebView];
}