UIToolBar上的“完成”按钮不工作-iOS

我正在尝试创建一个带有“完成”按钮的条的选择器

我试图实现以下目标：

viewForDatePicker = [[UIView alloc]initWithFrame:CGRectMake(0, 300, 320, 266)];

[viewForDatePicker setBackgroundColor:[UIColor whiteColor]];

UIToolbar *toolBar = [[UIToolbar alloc]initWithFrame:CGRectMake(0, 0, 320, 44)];
toolBar.barStyle = UIBarStyleBlackOpaque;

UIBarButtonItem *btn = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone
                                                                     target:self action:@selector(doneButtonPressed:)];

UIButton * doneButton =[[UIButton alloc]initWithFrame:CGRectMake(290, 2, 30, 20)];
[doneButton setBackgroundColor:[UIColor redColor]];
[doneButton addTarget:self action:@selector(doneButtonPressed:) forControlEvents:UIControlEventTouchUpInside];
[viewForDatePicker addSubview:doneButton];

[toolBar setItems:[NSArray arrayWithObject:btn]];
[viewForDatePicker addSubview:toolBar];

birthDatePicker = [[UIDatePicker alloc] initWithFrame:CGRectMake(0, 44, 320, 266)];
[birthDatePicker setDatePickerMode:UIDatePickerModeDate];
[birthDatePicker setBackgroundColor:[UIColor whiteColor]];

[viewForDatePicker addSubview:birthDatePicker];


[self.view addSubview:viewForDatePicker];

遗憾的是，“完成”按钮不执行。这个代码有什么问题

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你能帮我一下吗？

你先把按钮添加到视图中。 因此，当您添加日期选择器时，它位于按钮上方。这就是按钮对触摸不响应的原因。 更改为：

birthDatePicker = [[UIDatePicker alloc] initWithFrame:CGRectMake(0, 44, 320, 266)];
[birthDatePicker setDatePickerMode:UIDatePickerModeDate];
[birthDatePicker setBackgroundColor:[UIColor whiteColor]];

[viewForDatePicker addSubview:birthDatePicker];

UIButton * doneButton =[[UIButton alloc]initWithFrame:CGRectMake(290, 2, 30, 20)];
[doneButton setBackgroundColor:[UIColor redColor]];
[doneButton addTarget:self action:@selector(doneButtonPressed:) forControlEvents:UIControlEventTouchUpInside];
[viewForDatePicker addSubview:doneButton];

[toolBar setItems:[NSArray arrayWithObject:btn]];
[viewForDatePicker addSubview:toolBar];

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你能分享doneButtonPressed的代码吗？还想提醒您，您在“btn”和“doneButton”中使用相同的选择器方法。日期选择器是否位于按钮顶部？尝试在日期选择器之后添加按钮。@CW0007007如果您添加了答案，则您的答案是正确的。标记为对其他人正确。