Objective C how to re add the deleted items in NSMutableArray - ios

Question

In my code, three text fields are there for picker views. For example in the first text field, the user selects A+ blood group, in the second text field we don't want to display A+ blood group. Remaining items need to display. Text field 3 also same. For example, in text field 2 the user selects B+ blood group, in text field 3 B+ and A+ blood group needs to remove in array list. For example the user again selects the first text field and reselects another blood group like A- ve group re add the A+ blood group in array list. The same thing in text field2 and text field3. I already completed the one task, i.e removing items from array. The pending task is re adding the items in array.
- (void)viewDidLoad {
dataArray = [[NSMutableArray alloc]initWithObjects:#"A+",#"A-",#"B+",#"B-",#"O+",#"O-", nil];
bloodGroup = [[UITextField alloc] initWithFrame:CGRectMake(10, logoImg.frame.origin.y+logoImg.frame.size.height+45, screenWidth-20, 50)];
bloodGroup.borderStyle = UITextBorderStyleRoundedRect;
bloodGroup.font = [UIFont systemFontOfSize:15];
bloodGroup.placeholder = #"Please Select Your Option";
bloodGroup.delegate = self;
[self.view addSubview:bloodGroup];
txtField1 = [[UITextField alloc] initWithFrame:CGRectMake(10, ansField1.frame.origin.y+ansField1.frame.size.height+45, screenWidth-20, 50)];
txtField1.borderStyle = UITextBorderStyleRoundedRect;
txtField1.font = [UIFont systemFontOfSize:15];
txtField1.placeholder = #"Please Select Your Option";
txtField1.delegate = self;
[self.view addSubview:txtField1];
txtField2 = [[UITextField alloc] initWithFrame:CGRectMake(10, ansField2.frame.origin.y+ansField2.frame.size.height+45, screenWidth-20, 50)];
txtField2.borderStyle = UITextBorderStyleRoundedRect;
txtField2.font = [UIFont systemFontOfSize:15];
txtField2.placeholder = #"Please Select Your Option";
txtField2.delegate = self;
[self.view addSubview:txtField2];
myPickerView = [[UIPickerView alloc] init];
[myPickerView setDataSource: self];
[myPickerView setDelegate: self];
myPickerView.showsSelectionIndicator = YES;
bloodGroup.inputView = myPickerView;
bloodGroup.inputAccessoryView = toolBar;
// txtField1
txtField1.inputView = myPickerView;
txtField1.inputAccessoryView = toolBar;
txtField2.inputView = myPickerView;
txtField2.inputAccessoryView = toolBar;
}
- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView {
if (isBloodGroupFieldSelected) {
return 1;
}
else if (!isBloodGroupFieldSelected) {
return 1;
}
else if (!isGenderGroupFieldSelected) {
return 1;
}
return 0;
}
- (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component {
if (isBloodGroupFieldSelected) {
return [dataArray count];
}
else if (!isBloodGroupFieldSelected) {
return [dataArray count];
}
else if (!isGenderGroupFieldSelected) {
return [dataArray count];
}
return 0;
}
- (NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component {
if (isBloodGroupFieldSelected) {
return dataArray[row];
}
else if ((!isBloodGroupFieldSelected) && (isGenderGroupFieldSelected)) {
return dataArray[row];
}
else if (!isGenderGroupFieldSelected) {
return dataArray[row];
}
return 0;
}
- (void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component {
if (isBloodGroupFieldSelected) {
bloodGroup.text = dataArray[row];
}
else if ((!isBloodGroupFieldSelected) && (isGenderGroupFieldSelected)) {
txtField1.text = dataArray[row];
}
else if (!isGenderGroupFieldSelected) {
txtField2.text= dataArray[row];
}
}
- (void)textFieldDidBeginEditing:(UITextField *)textField {
if (textField == bloodGroup) {
isBloodGroupFieldSelected = YES;
}
else if (textField == txtField1) {
isBloodGroupFieldSelected = NO;
isGenderGroupFieldSelected = YES;
}
else if (textField == txtField2) {
isGenderGroupFieldSelected = NO;
isBloodGroupFieldSelected = NO;
}
[myPickerView reloadAllComponents];
}
- (void)viewWillAppear:(BOOL)animated {
[super viewWillAppear:animated];
[myPickerView selectRow:0 inComponent:0 animated:YES];
}
- (void)done:(id)sender {
[myPickerView selectRow:0 inComponent:0 animated:YES]; // On 27/04/2020
[bloodGroup resignFirstResponder];
[txtField1 resignFirstResponder];
[txtField2 resignFirstResponder];
}