LeveBe的博客

//开始编辑输入框的时候，软键盘出现，执行此事件 -(void)textFieldDidBeginEditing:(UITextField *)textField{ CGRect frame = textField.frame; int offset = frame.origin.y + 100 - (Height - 360.0);//键盘高度 NSTimeInterval animat

textField.placeholder = @"请输入您的密码"; [textField setValue:[UIColor redColor] forKeyPath:@"_placeholderLabel.textColor"]; [textField setValue:[UIFont boldSystemFontOfSize:16] forKeyPath:@"_placeholderLab

UITextField *numberTF = [[UITextField alloc]init]; numberTF.frame = CGRectMake(5, 200, UISCREEN_WIDTH-10, 50); numberTF.borderStyle = UITextBorderStyleRoundedRect; numberTF.placeholder = @"请输入您的账号"; [

#pragma mark - textField //只能输入数字 -(BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string{ NSCharacterSet *cs = [[NSCharacter