Detect Selected State of UIButton iOS - ios

Question

How can I detect the selected state of a uibutton?
I have 7 buttons and I have made them to be able to toggle or select multiple buttons at a time.
I want to be able to tell which buttons are in a selected state when I push the done button.
So if M, T and W are selected then I want to be able to detect that when pushing done.
I currently put a tag on the button and then call a method to unselect or select multiple buttons.
self.repeatOccurrenceFrequencyWeeklyTF = [[UITextField alloc]init];
self.repeatOccurrenceFrequencyWeeklyTF.frame = CGRectMake(80, 80, 32, 32);
self.repeatOccurrenceFrequencyWeeklyTF.delegate = self;
self.repeatOccurrenceFrequencyWeeklyTF.background = [UIImage imageNamed:#"repeatWeekly"];
self.repeatOccurrenceFrequencyWeeklyTF.font = [UIFont fontWithName:#"SegoeWP" size:15];
self.repeatOccurrenceFrequencyWeeklyTF.textColor = [UIColor appGreyText];
[self.repeatOccurrenceFrequencyWeeklyTF setValue:[UIColor colorWithRed:153/255.0 green:153/255.0 blue:153/255.0 alpha:1.0] forKeyPath:#"_placeholderLabel.textColor"];
self.repeatOccurrenceFrequencyWeeklyTF.placeholder = #"1";
UIView *leftView1 = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 12, self.repeatOccurrenceFrequencyWeeklyTF.frame.size.height)];
self.repeatOccurrenceFrequencyWeeklyTF.leftView = leftView1;
self.repeatOccurrenceFrequencyWeeklyTF.leftViewMode = UITextFieldViewModeAlways;
self.repeatOccurrenceFrequencyWeeklyTF.rightViewMode = UITextFieldViewModeAlways;
self.keyboardToolbar = [self createInputToolbar];
self.repeatOccurrenceFrequencyWeeklyTF.inputAccessoryView = self.keyboardToolbar;
self.repeatOccurrenceFrequencyWeeklyTF.delegate = self;
self.repeatOccurrenceFrequencyWeeklyTF.keyboardType = UIKeyboardTypeNumberPad;
self.repeatOccurrenceFrequencyWeeklyTF.enabled = NO;
[self.view addSubview:self.repeatOccurrenceFrequencyWeeklyTF];
// Now, in your button action handler, you can do something like this:
- (void)mondayButtonTouch:(UIButton *)aButton withEvent:(UIEvent *)event
{
aButton.selected = !aButton.selected;
if(aButton.tag == 111) {
}
if(aButton.tag == 222) {
}
if(aButton.tag == 333) {
}
if(aButton.tag == 444) {
}
if(aButton.tag == 555) {
}
if(aButton.tag == 666) {
}
NSLog(#"dsfdfdfsdfs %ld", (long)aButton.tag);
[aButton setTitleColor:[UIColor whiteColor] forState:UIControlStateSelected];
}

Answer 1

I would use a NS_ENUM (which helps to keep a nice and readable code) and a NSMutableArray to keep track of your selected buttons.
Declare a enum that looks something like this:
typedef NS_ENUM(NSInteger, Weekday) {
WeekdayMonday,
WeekdayTuesday,
WeekdayWednesday,
WeekdayThursday,
WeekdayFriday,
WeekdaySaturday,
WeekdaySunday
};
Then tag your buttons with the correct enum:
tuesdayButton.tag = WeekdayTuesday;
And check when you tap button if your enum exists in your array:
- (void)buttonTouch:(UIButton *)aButton withEvent:(UIEvent *)event
{
if ([array containsObject:#(aButton.tag)]){ //exists, remove it from array
[array removeObjectIdenticalTo:#(aButton.tag)];
}
}else{
[array addObject:#(aButton.tag)];
}
}

Answer 2

A possibility is to create an NSMutableArray named selectedButton. Do like this:
- (void)mondayButtonTouch:(UIButton *)aButton withEvent:(UIEvent *)event
{
aButton.selected = !aButton.selected;
if(!aButton.selected && selectedButton.containsObject(aButton.Tag)) {
[selectedButton removeObject:aButton.tag];
}
else if(aButton.selected && !selectedButton.containsObject(aButton.Tag)) {
[selectedButton addObject:aButton.tag];
}
// do your stuff here
}
Now on done button click you have all the button thats tags are selected will be trackable with selectedButton array.
You can use:
[self.view viewWithTag:yourTagHere]

Answer 3

you can use this :
for (UIButton *btn in [self.view subviews]) { // self.view (change it with your button superview)
if ([btn isKindOfClass:[UIButton class]] && [btn isSelected] == YES) {
// here you found the button which is selected
}
}

Answer 4

[self.view viewWithTag:yourTagHere] replace