Detecting a change to text in UITextfield

Question

I would like to be able to detect if some text is changed in a UITextField so that I can then enable a UIButton to save the changes.

Answer 1

You can add a class member like this NSString *changeTemp,then

changetemp = textfield;

if( change temp != textfild ){
    changetemp=textfild;
    NSLog(@" text is changed"
} else { 
    NSLog(@" text isn't changed"):
}