Question

I am trying to develop a application by using Cocos2d. I can’t getting value from textfield . How can get the value of text field (in a alert view) by using Cocos2d ?

-(void)timed1: (id)sender  {     UIAlertView* dialog = [[[UIAlertView alloc] init] retain];     [dialog setDelegate:self];      [dialog setTitle:@'Enter Time:'];     [dialog setMessage:@' '];     UITextField * nameField = [[UITextField alloc] initWithFrame:CGRectMake(20.0, 45.0, 245.0, 25.0)];     [dialog addSubview:nameField];     [nameField setBackgroundColor:[UIColor whiteColor]];     CGAffineTransform moveUp = CGAffineTransformMakeTranslation(0.0, 70.0);     [dialog setTransform: moveUp];     [dialog setBackgroundColor:[UIColor clearColor]];     [dialog addButtonWithTitle:@'Done'];     [dialog show];      nameField.clearButtonMode = UITextFieldViewModeWhileEditing;     nameField.keyboardType = UIKeyboardTypeNumbersAndPunctuation;     nameField.keyboardAppearance = UIKeyboardAppearanceAlert;     nameField.autocapitalizationType = UITextAutocapitalizationTypeWords;          //  timeStatus is a int type global variable     timeStatus =[nameField.text intValue]; // this line not working i can't getting value namefield       [dialog release];     [nameField release];  } 

Answer 1

Action sheets and alerts are handled asynchronously. In your case, the message [dialog show] merely schedules the show event for some later execution (handled by the main run loop). If you put in a few NSLog()s, you’ll see that the [show] message returns almost immediately, at which point your user hasn’t entered any data, nameField’s text is blank, and this converts to an int of 0.

You want a blocking, modal dialog with input — action sheets and alerts are not designed for user input beyond yes/no/cancel button pushes. You’ll have to cook up a view of your own: not too hard, but it will require more work than using an action sheet/alert.