关于如何在UITextView等添加输入提示(placeholder)

 - (void)viewDidLoad{ commentTxtView.text = @"Comment"; commentTxtView.textColor = [UIColor lightGrayColor]; commentTxtView.delegate = self; } - (BOOL) textViewShouldBeginEditing:(UITextView *)textView { commentTxtView.text = @""; commentTxtView.textColor = [UIColor blackColor]; return YES; } -(void) textViewDidChange:(UITextView *)textView { if(commentTxtView.text.length == 0){ commentTxtView.textColor = [UIColor lightGrayColor]; commentTxtView.text = @"Comment"; [commentTxtView resignFirstResponder]; } }

OR you can add label in textview just like

 lbl = [[UILabel alloc] initWithFrame:CGRectMake(10.0, 0.0,textView.frame.size.width - 10.0, 34.0)]; [lbl setText:kDescriptionPlaceholder]; [lbl setBackgroundColor:[UIColor clearColor]]; [lbl setTextColor:[UIColor lightGrayColor]]; textView.delegate = self; [textView addSubview:lbl];

and set

- (void)textViewDidEndEditing:(UITextView *)theTextView { if (![textView hasText]) { lbl.hidden = NO; } } - (void) textViewDidChange:(UITextView *)textView { if(![textView hasText]) { lbl.hidden = NO; } else{ lbl.hidden = YES; } }