摘要： UITextField *textField = [[UITextField alloc]initWithFrame:CGRectMake(10, 50, 320, 50)]; textField.placeholder = @"填写订单"; if ([textField respondsToSelector:@selector(setAttributedPlaceholder:)]) { UIColor *color = [UIColor redColor]; textField.attributedPlaceholder = [[NSAttribut... 阅读全文

摘要： UITapGestureRecognizer *tap3 = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(onSecondNavClick:)]; [field3 addGestureRecognizer:tap3]; tap3.delegate = self;-(BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:... 阅读全文