IOS 5.1無法識別的選擇器發送到實例

我一直在尋找類似的問題，但無法弄清楚是什麼問題。它似乎應該工作，但它給了我錯誤。IOS 5.1無法識別的選擇器發送到實例

在IOS 5.1 Ipad Stortyboard應用程序中當用戶單擊應該打開的彈窗視圖時，我有一個正確的導航欄項目。我有一個工作酥料餅的看法，但設計並不是很好，所以我現在有一個新的酥料餅類它給了我下面的錯誤

-[UIButton view]: unrecognized selector sent to instance 0xa17ba80 
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[UIButton view]: unrecognized selector sent to instance 0xa17ba80'

我曾嘗試以下功能，但到目前爲止沒有一個工作取而代之。當我更改代碼時，它給了我類似的錯誤。

- (IBAction)setColorButtonTapped:(id)sender{ 
- (void)setColorButtonTapped:(id)sender{ 
- (IBAction)setColorButtonTapped:(id)sender forEvent:(UIEvent*)event { 
- (void)setColorButtonTapped:(id)sender forEvent:(UIEvent*)event {

和ofcourse我已經改變了TI以下關於向IBAction爲或無效

[backButton2 addTarget:self action:@selector(setColorButtonTapped:) forControlEvents:UIControlEventTouchUpInside];

這裏是代碼 my.h文件

#import <UIKit/UIKit.h> 
#import "ColorPickerController.h" 

@interface MeetingViewController : UITableViewController<UIApplicationDelegate,UIAlertViewDelegate,DropDownListDelegate,MFMailComposeViewControllerDelegate,EGORefreshTableHeaderDelegate,ColorPickerDelegate>{ 

    UIPopoverController *_popover; 
    ColorPickerController *_colorPicker; 
    UIPopoverController *_colorPickerPopover; 

} 
@property (nonatomic, strong) UIPopoverController *popover; 
@property (nonatomic, strong) ColorPickerController *colorPicker; 
@property (nonatomic, strong) UIPopoverController *colorPickerPopover; 

- (IBAction)setColorButtonTapped:(id)sender; 
@end

my.m文件

@synthesize popover = _popover; 
@synthesize colorPicker = _colorPicker; 
@synthesize colorPickerPopover = _colorPickerPopover; 

- (void)viewDidLoad 
{ 
    [super viewDidLoad]; 
    //gear button on navigation Bar 
    UIImage* imageback2 = [UIImage imageNamed:@"ICON - [email protected]"]; 
    CGRect frameimgback2 = CGRectMake(0, 0, 40, 40); 

    UIButton *backButton2 = [[UIButton alloc] initWithFrame:frameimgback2]; 
    [backButton2 setBackgroundImage:imageback2 forState:UIControlStateNormal]; 
    [backButton2 addTarget:self 
        action:@selector(setColorButtonTapped:) 
      forControlEvents:UIControlEventTouchUpInside]; 

    UIBarButtonItem *btn2 = [[UIBarButtonItem alloc] initWithCustomView:backButton2]; 
    self.navigationItem.rightBarButtonItem = btn2; 

} 
#pragma mark ColorPickerDelegate 

- (void)colorSelected:(NSString *)color { 

    [self.colorPickerPopover dismissPopoverAnimated:YES]; 
} 

#pragma mark Callbacks 

- (IBAction)setColorButtonTapped:(id)sender { 
    if (_colorPicker == nil) { 
     self.colorPicker = [[ColorPickerController alloc] initWithStyle:UITableViewStylePlain]; 
     _colorPicker.delegate = self; 
     self.colorPickerPopover = [[UIPopoverController alloc] initWithContentViewController:_colorPicker]; 
    } 
    [self.colorPickerPopover presentPopoverFromBarButtonItem:sender permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES]; 
}

實用類 ColorPickerController.h

#import <UIKit/UIKit.h> 

@protocol ColorPickerDelegate 
- (void)colorSelected:(NSString *)color; 
@end 


@interface ColorPickerController : UITableViewController { 
    NSMutableArray *_colors; 
    id<ColorPickerDelegate> __weak _delegate; 
} 

@property (nonatomic, strong) NSMutableArray *colors; 
@property (nonatomic, weak) id<ColorPickerDelegate> delegate; 

@end

utilityclass ColorPickerController.m

#import "ColorPickerController.h" 


@implementation ColorPickerController 
@synthesize colors = _colors; 
@synthesize delegate = _delegate; 

#pragma mark - 
#pragma mark Initialization 

/* 
- (id)initWithStyle:(UITableViewStyle)style { 
    // Override initWithStyle: if you create the controller programmatically and want to perform customization that is not appropriate for viewDidLoad. 
    if ((self = [super initWithStyle:style])) { 
    } 
    return self; 
} 
*/ 


#pragma mark - 
#pragma mark View lifecycle 


- (void)viewDidLoad { 
    [super viewDidLoad]; 
    self.clearsSelectionOnViewWillAppear = NO; 
    self.contentSizeForViewInPopover = CGSizeMake(150.0, 140.0); 
    self.colors = [NSMutableArray array]; 
    [_colors addObject:@"Red"]; 
    [_colors addObject:@"Green"]; 
    [_colors addObject:@"Blue"]; 
} 




- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { 
    // Override to allow orientations other than the default portrait orientation. 
    return YES; 
} 


#pragma mark - 
#pragma mark Table view data source 

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { 
    // Return the number of sections. 
    return 1; 
} 


- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { 
    // Return the number of rows in the section. 
    return [_colors count]; 
} 


// Customize the appearance of table view cells. 
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { 

    static NSString *CellIdentifier = @"Cell"; 

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; 
    if (cell == nil) { 
     cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier]; 
    } 

    // Configure the cell... 
    NSString *color = [_colors objectAtIndex:indexPath.row]; 
    cell.textLabel.text = color; 

    return cell; 
} 




#pragma mark - 
#pragma mark Table view delegate 

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { 
    if (_delegate != nil) { 
     NSString *color = [_colors objectAtIndex:indexPath.row]; 
     [_delegate colorSelected:color]; 
    } 
} 


#pragma mark - 
#pragma mark Memory management 

- (void)didReceiveMemoryWarning { 
    // Releases the view if it doesn't have a superview. 
    [super didReceiveMemoryWarning]; 

    // Relinquish ownership any cached data, images, etc that aren't in use. 
} 

- (void)viewDidUnload { 
    // Relinquish ownership of anything that can be recreated in viewDidLoad or on demand. 
    // For example: self.myOutlet = nil; 
} 


- (void)dealloc { 
    self.delegate = nil; 
} 

@end

幫助深表感謝，感謝

來源

2012-09-26 Mord Fustang

如果你使用storyboard，爲什麼不從segges中獲益呢？您可以將按鈕從您的按鈕拖到您希望顯示在彈出窗口中的視圖中，然後選擇「彈出窗口」。我每次都使用它您只需按住「ctrl」鍵，將連接從按鈕拖到視圖中即可。 – Diwann

當用戶點擊一個列表時，彈出窗口就像下拉列表一樣下拉或彈出而不改變當前視圖，你怎麼用segue實現？ –

與任何segues一樣：只需按住鍵盤上的「ctrl」鍵並從按鈕拖動到_colorPicker視圖。 – Diwann

您使用的是UIButton作爲customView爲一個UIBarButtonItem。這可能是問題所在。我建議你使用UIBarButtonItem的initWithImage:style:target:action:初始化程序。

來源

2012-09-26 14:51:44

當我更改代碼爲'UIBarButtonItem * btn3 = [[UIBarButtonItem alloc] initWithImage：imageback2 style：nil target：self action：@selector（setColorButtonTapped :)];'它的工作，但現在按鈕看起來醜陋地獄，怎麼可以我添加了我的自定義樣式？ –

如果您願意，您仍然可以使用自定義視圖;只需使用常規的'UIView'而不是'UIButton'。另外，您可以嘗試不同的'UIBarButtonItemStyle'設置：http://developer.apple.com/library/ios/#DOCUMENTATION/UIKit/Reference/UIBarButtonItem_Class/Reference/Reference.html#//apple_ref/c/tdef/UIBarButtonItemStyle –

@MordFustang你不需要改變你的代碼到UIBarButtonItem而不是使用UIButton自定義視圖。嘗試下面的行[self.colorPickerPopover presentPopoverFromBarButtonItem：self.navigationItem。rightBarButtonItem allowedArrowDirections：UIPopoverArrowDirectionAny animated：YES]; – Jirune

UIButton是一個視圖，因此沒有視圖屬性或實例方法。

來源

2012-09-27 01:22:23

IOS 5.1無法識別的選擇器發送到實例

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