How do you Save UIButton State to selected when quiting & relaunching app

[Sreenivas Reddy]

I'm very new at this. So please be patient with me

I have made a simple Application that has only 1 main view, buttons that turn on and off that represent days. It works perfectly on my iphone and the simulator, but when it closes everything is reset. I just need some help or sample code that will allow the buttons to stay selected when the application quits.

Example - In the MainView.h I have

BOOL checkboxSelected; IBOutlet UIButton *day1;

With an - (IBAction)day1id)sender;

In the MainView.m I have

- (IBAction)day1id)sender{
if (checkboxSelected == 0){
[day1 setSelected:YES];
checkboxSelected = 1;
} else {
[day1 setSelected:NO];
checkboxSelected = 0;

Each button has this code. When a button is pressed an X appears as the selected state. I want it to stay selected when the App is closed and re-opened. Anyone that can help, I'd really appreciate it Thanx in Advanced.

[kevinyide]

is the X that you mention some kind of image or are you changing the button title text?

Save some flag for the buttons that need to be selected upon app relaunch, then depending on flag value for the buttons you could try

[buttonOutlet setHighlighted:YES];

[raziiq]

Google for NSUserDefaults

[Duncan C]

Originally Posted by Sreenivas Reddy

I'm very new at this. So please be patient with me

I have made a simple Application that has only 1 main view, buttons that turn on and off that represent days. It works perfectly on my iphone and the simulator, but when it closes everything is reset. I just need some help or sample code that will allow the buttons to stay selected when the application quits.

Example - In the MainView.h I have

BOOL checkboxSelected; IBOutlet UIButton *day1;

With an - (IBAction)day1id)sender;

In the MainView.m I have

- (IBAction)day1id)sender{
if (checkboxSelected == 0){
[day1 setSelected:YES];
checkboxSelected = 1;
} else {
[day1 setSelected:NO];
checkboxSelected = 0;

Each button has this code. When a button is pressed an X appears as the selected state. I want it to stay selected when the App is closed and re-opened. Anyone that can help, I'd really appreciate it Thanx in Advanced.

When the user changes the state of the button, save the selected flag to a key value pair in NSUserDefaults.

In your ViewDidLoad method, load that key/value pair from user defaults and set the selected state of the button using the saved value.