Iphone “完成”按钮在编程UIBarButtonim和UIPickerView上不工作

我正在以编程方式创建一个

UIPickerView

，

UIToolbar

，

uibarbuttoneim

和

UIButton

。我将自定义选取器设置为textView的inputView，除“完成”按钮外，其他一切都可以正常工作

有人知道问题出在哪里吗

我使用的代码是：

// initialize picker
CGRect cgRect =[[UIScreen mainScreen] bounds];
CGSize cgSize = cgRect.size;

_picker = [[UIPickerView alloc] init];
_picker.frame=CGRectMake(0, 0, cgSize.width, cgSize.height);
_picker.showsSelectionIndicator = YES;
_picker.delegate = self;

// toolbar of picker
UIToolbar* toolbar = [[UIToolbar alloc] init];
toolbar.frame=CGRectMake(0, 0, cgSize.width, 35);
toolbar.barStyle = UIBarStyleBlackTranslucent;

UIBarButtonItem *flexibleSpaceLeft = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil];

UIButton *customButton = [[UIButton alloc]initWithFrame:CGRectMake(0, 0, 60, 33)];
[customButton setTitle:@"Done" forState:UIControlStateNormal];
[customButton addTarget:self action:@selector(doneClicked:) forControlEvents:UIControlEventTouchUpInside];
UIBarButtonItem *barCustomButton =[[UIBarButtonItem alloc] initWithCustomView:customButton];

NSMutableArray * arr = [NSMutableArray arrayWithObjects:flexibleSpaceLeft, barCustomButton, nil];
[toolbar setItems:arr animated:YES];
self.txtTeam.inputView = _picker;
[_picker addSubview:toolbar];

而

doneClicked

方法是

    -(void)doneClicked
{
    NSLog(@"Done button clicked.");
    [self.txtTeam resignFirstResponder];
}

---

但“完成”按钮不可单击

您已将按钮的选择器设置为调用doneClicked：但该方法称为doneClicked。从选择器中方法名称的末尾删除：，它应该可以工作。

您已将按钮的选择器设置为调用doneClicked:但该方法称为doneClicked。在选择器中，从方法名称的末尾删除：应该可以工作

UIButton *customButton =  [UIButton buttonWithType:UIButtonTypeCustom];
[customButton setFrame:CGRectMake(0, 0, 30, 60)];
[customButton setTitle:@"Done" forState:UIControlStateNormal];
[customButton addTarget:self action:@selector(doneClicked:) forControlEvents:UIControlEventTouchUpInside];
UIBarButtonItem *barCustomButton =[[UIBarButtonItem alloc] initWithCustomView:customButton];

像这样试试

---

尝试这样做。

将代码更改为以下内容：-

UIButton *customButton = [UIButton buttonWithType:UIButtonTypeCustom];
customButton.frame = CGRectMake(0, 0, 60, 33);
[customButton addTarget:self action:@selector(doneClicked) forControlEvents:UIControlEventTouchUpInside];
customButton.showsTouchWhenHighlighted = YES;
[customButton setTitle:@"Done" forState:UIControlStateNormal];
customButton.imageEdgeInsets = UIEdgeInsetsMake(10, 10, 10, 10);
UIBarButtonItem *barCustomButton =[[UIBarButtonItem alloc] initWithCustomView:customButton];

只需在代码下方添加注释，然后在上面进行修改

   // UIButton *customButton = [[UIButton alloc]initWithFrame:CGRectMake(0, 0, 60, 33)];
   // [customButton setTitle:@"Done" forState:UIControlStateNormal];
    //[customButton addTarget:self action:@selector(doneClicked:) forControlEvents:UIControlEventTouchUpInside];
   // UIBarButtonItem *barCustomButton =[[UIBarButtonItem alloc] initWithCustomView:customButton];

---

将代码更改为以下内容：-

UIButton *customButton = [UIButton buttonWithType:UIButtonTypeCustom];
customButton.frame = CGRectMake(0, 0, 60, 33);
[customButton addTarget:self action:@selector(doneClicked) forControlEvents:UIControlEventTouchUpInside];
customButton.showsTouchWhenHighlighted = YES;
[customButton setTitle:@"Done" forState:UIControlStateNormal];
customButton.imageEdgeInsets = UIEdgeInsetsMake(10, 10, 10, 10);
UIBarButtonItem *barCustomButton =[[UIBarButtonItem alloc] initWithCustomView:customButton];

只需在代码下方添加注释，然后在上面进行修改

   // UIButton *customButton = [[UIButton alloc]initWithFrame:CGRectMake(0, 0, 60, 33)];
   // [customButton setTitle:@"Done" forState:UIControlStateNormal];
    //[customButton addTarget:self action:@selector(doneClicked:) forControlEvents:UIControlEventTouchUpInside];
   // UIBarButtonItem *barCustomButton =[[UIBarButtonItem alloc] initWithCustomView:customButton];

---

使用了以下代码，但不起作用。[customButton addTarget:self action:@selector（Doneclick）for ControlEvents:UIControlEventTouchUpInside]；如果使用@TamilKing中的示例中的buttonWithType方法，是否有效？例如，使用buttonWithType方法和选择器（doneClicked）创建按钮，而不使用：。使用了以下代码，但不起作用。[customButton addTarget:self action:@selector（Doneclick）for ControlEvents:UIControlEventTouchUpInside]；如果使用@TamilKing中的示例中的buttonWithType方法，是否有效？例如，使用buttonWithType方法和选择器（doneClicked）创建按钮，但不使用：。请尝试我的代码。使用customTry my代码创建按钮。使用Custom创建按钮我按照您的建议更改了方法，但仍然不起作用。我当前的方法是：-（iAction）doneClicked:（id）sender{[self.txtTeam resignFirstResponder]；}我当前的代码是：您的代码+NSMutableArray*arr=[NSMutableArray arrayWithObjects:flexibleSpaceLeft，barCustomButton，nil]；[工具栏设置项：arr动画：是]；[_选取器添加子视图：工具栏]；self.txtTeam.inputView=\u选择器；仍然不起作用。基本上，在您编写代码的地方，我认为您写错了地方。请检查？？Ohk no it is right只包括自定义按钮而不添加到barCustomButton，并测试它是否仍在调用？？是否调用此[super viewDidLoad]；在您的viewdidload中？？我按照您的建议更改了方法，但仍然不起作用。我当前的方法是：-（iAction）doneClicked:（id）sender{[self.txtTeam resignFirstResponder]；}我当前的代码是：您的代码+NSMutableArray*arr=[NSMutableArray arrayWithObjects:flexibleSpaceLeft，barCustomButton，nil]；[工具栏设置项：arr动画：是]；[_选取器添加子视图：工具栏]；self.txtTeam.inputView=\u选择器；仍然不起作用。基本上，在您编写代码的地方，我认为您写错了地方。请检查？？Ohk no it is right只包括自定义按钮而不添加到barCustomButton，并测试它是否仍在调用？？是否调用此[super viewDidLoad]；在你的视图中加载？？