objective-c - 键盘不适用于 UIActionSheet 中的 UITextField

Question

操作表与文本字段一起出现。当我单击文本字段时，键盘出现但无法正常工作。当我输入时，它们在文本字段中不可见

UIActionSheet *menu = [[UIActionSheet alloc] initWithTitle:@"Select reminder date and time"
                                                  delegate:self
                                         cancelButtonTitle:@"Cancel"
                                    destructiveButtonTitle:@"Save"
                                         otherButtonTitles:nil,nil];
menu.tag =10;
[menu showInView:self.view];
UITextField  *txtReminderTitle= [[UITextField alloc] initWithFrame:CGRectMake(20.0, 190, 280.0, 40.0)];
[txtReminderTitle setTag:99];
[txtReminderTitle setBackgroundColor:[UIColor whiteColor]];
[txtReminderTitle setFont:[UIFont boldSystemFontOfSize:17]];
[txtReminderTitle setBorderStyle:UITextBorderStyleNone];
[txtReminderTitle setTextAlignment:UITextAlignmentCenter];
txtReminderTitle.borderStyle = UITextBorderStyleRoundedRect;
txtReminderTitle.keyboardType = UIKeyboardTypeDefault;
txtReminderTitle.returnKeyType = UIReturnKeyDone;
txtReminderTitle.delegate =self;
[menu addSubview:txtReminderTitle];

请把我从这个问题中解救出来。在此先感谢。

Answer 1

我发现，当你添加UITextField到UIActionSheetthen时UITextField，它仍然在下面，UIActionSheet所以你需要在UITextField上面显示UIActionSheet

为 add 编写以下代码UITextField：

UIWindow *appWindow = [UIApplication sharedApplication].keyWindow;
[appWindow insertSubview:txtReminderTitle aboveSubview:menu];