Calling of methods in ios - ios

Question

I am very new to ios and having a problem to call four different methods one after the other, as I would like to call them after comparison like if(number<6)
method2->method3->method4->method1-> such that it would make a loop until the comparison of (number)become false.
Also I want method1 to be activated in viewDidLoad.

Answer 1

Something like this, if I understood your question properly
[[[method2 method3] method4] method1]

Answer 2

You can use
[yourObject performSelector:#selector(method1:)]
You can call it on any NSObject (and subclasses of course). You may want to try before :
[yourObject respondToSelector:#selector(method1:)]
This will tell you if your object has this method or not (avoid exceptions and errors).
More informations on the official documentation of performSelector.

Answer 3

use [self method1]; somewhere else and use as follows:
-(void) method1
{
[self method2];
}
-(void) method2
{
[self method3];
}
-(void) method3
{
[self method4];
}
-(void) method4
{
// do if you need.
}
Or Try NSNotificationCenter

Answer 4

I hope i'm interpreting your question correctly. But here's a simple implementation...
- (void)viewDidLoad {
[super viewDidLoad];
[self method1];
}
- (void)method1 {
/* do stuff */
[self method2];
}
- (void)method2 {
/* do stuff */
[self method3];
}
- (void)method3 {
/* do stuff */
[self method4];
}
- (void)method4 {
/* do stuff */
}

Answer 5

-(void) method1
{
if (number<6)
{
[self method2];
}
}
-(void) method2
{
[self method3];
}
-(void) method3
{
[self method4];
}
-(void) method4
{
[self method1];
}