Change backgroundcolor for UIButton IPhone - ios

Question

I have a problem. I use a Button as a BarButtonItem. It works fine so far, but my backgroundcolor works only if I click on my button. How can I make it so that my backgroundcolor will be set every time ?
UIButton *redEmergencyButton = [[UIButton buttonWithType:UIButtonTypeRoundedRect] retain];
redEmergencyButton.frame = CGRectMake(100, 100, 100, 50);
redEmergencyButton.backgroundColor = [UIColor colorWithRed:0.8
green:0.898039215686274509803
blue:1.0
alpha:1.0];
[redEmergencyButton setTitle:#"Emergency"
forState:UIControlStateNormal];
[redEmergencyButton addTarget:self
action:#selector(doEmergency)
forControlEvents:UIControlEventTouchUpInside];
UIBarButtonItem *rButton = [[UIBarButtonItem alloc]
initWithCustomView:redEmergencyButton];

Answer 1

You can use this line of code for your navigation bar
[self.navigationcontroller.navigationbar setTintColor:[UIColor bluecolor]];
for button use
navigation button there.

Answer 2

Try to use this button instead:
UIBarButtonItem* emergencyButton = [[UIBarButtonItem alloc]initWithTitle:#"Emergency" style:UIBarButtonItemStyleBordered target:self action:#selector(doEmergency)];
[emergencyButton setTintColor: [UIColor colorWithRed:0.8
green:0.898039215686274509803
blue:1.0
alpha:1.0];

Answer 3

UIButtonTypeRoundedRect is deprecated in iOS7, Use UIButtonTypeCustom instead for your custom bgColor.
UIButton *redEmergencyButton = [[UIButton buttonWithType:UIButtonTypeCustom] retain];
redEmergencyButton.frame = CGRectMake(100, 100, 100, 50);
redEmergencyButton.backgroundColor = [UIColor colorWithRed:0.8
green:0.898039215686274509803
blue:1.0
alpha:1.0];
[redEmergencyButton setTitle:#"Emergency"
forState:UIControlStateNormal];
[redEmergencyButton addTarget:self
action:#selector(doEmergency)
forControlEvents:UIControlEventTouchUpInside];
UIBarButtonItem *rButton = [[UIBarButtonItem alloc]
initWithCustomView:redEmergencyButton];