Why wont my UITextField save? - ios

Question

When my UITextView places a line of text into my first UITextField i cant save the text it holds.
Heres my code, this is to move the information from a textview
-(IBAction)print:(id)sender {
NSLog(#"text = %#",[textView text] );
NSArray *textArray = [[textView text] componentsSeparatedByString:#"\n"];
if (textArray.count > 0) {
NSString *line1 = textArray[0];
[myTextField setText:line1];
if (textArray.count > 1) {
NSString *line2 = textArray[1];
[myTextField1 setText:line2];
}
}
[textView setText:#""];
[textView resignFirstResponder];
}
Heres how i am currently trying to save and load the information.
- (void)viewDidLoad {
[super viewDidLoad];
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
[myTextField setText:[defaults valueForKey:#"textfield_text"]];
[myTextField setDelegate:self];
}
- (void)textFieldDidEndEditing:(UITextField *)textField {
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
NSString *defaultsKeyForTextField;
if ([textField isEqual:myTextField]) {
defaultsKeyForTextField = #"textfield_text";
}
[defaults setValue:textField.text forKey:defaultsKeyForTextField];
[defaults synchronize];
}
What seems to happen is that the text only saves when i enter in text manually.

Answer 1

As user TangZijian pointed out, textFieldDidEndEditing will be called when the textfield resigns first responder.
None of your code in print function do this.
Since set textfield as first responder and immediately resign it seems like a bad idea, you can move the code in textFieldDidEndEditing to print.
-(IBAction)print:(id)sender {
NSLog(#"text = %#",[textView text] );
NSArray *textArray = [[textView text] componentsSeparatedByString:#"\n"];
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
NSString *defaultsKeyForTextField;
if (textArray.count > 0) {
NSString *line1 = textArray[0];
[myTextField setText:line1];
defaultsKeyForTextField = #"textfield_text";
[defaults setValue:textField.text forKey:defaultsKeyForTextField];
[defaults synchronize];
if (textArray.count > 1) {
NSString *line2 = textArray[1];
[myTextField1 setText:line2];
}
}
[textView setText:#""];
[textView resignFirstResponder];
}

Answer 2

I think you should be using a the Editing Changed event to detect changes to your text fields value. Put this in your viewDidLoad method.
[myTextField addTarget:self
action:#selector(textFieldDidChange:)
forControlEvents:UIControlEventEditingChanged];
Then change your code to:
- (void)textFieldDidChange:(UITextField *)textField {
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
NSString *defaultsKeyForTextField;
if ([textField isEqual:myTextField]) {
defaultsKeyForTextField = #"textfield_text";
}
[defaults setValue:textField.text forKey:defaultsKeyForTextField];
[defaults synchronize];
}