How to go back to previous view controller using custom back button?

Question

I am new to iOS development. I am going to next screen using following statement.

locationViewController = [[LocationViewController alloc] initWithNibName:@"LocationViewController" bundle:nil];

[navigationController pushViewController:locationViewController animated:YES];

Now I want to go back to previous screen by tapping on custom back button on the top bar of the current screen.

Answer 1

use this:

-(IBAction)back:(id)sender
{
    [self.navigationController popViewControllerAnimated:YES];
}

For home button:

NSArray *viewContrlls=[[self navigationController] viewControllers];
for( int i=0;i<[ viewContrlls count];i++)
{
    id obj=[viewContrlls objectAtIndex:i];
    if([obj isKindOfClass:[Rate_O_MeterViewController class]])
    {
        [[self navigationController] popToViewController:obj animated:YES];
        return;
    }
}

in place of Rate_O_MeterViewController give your controller name...add it in action of home button.