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UITouchUpInside不調用委托方法

[英]UITouchUpInside not calling delegate method

我有一個類MyView(UIView的子類),並且正在將MyView作為子視圖添加到我當前的ViewController中。 MyView有一個按鈕,如果觸發了TouchUpInsideEvent,則該按鈕將調用委托方法。 我的問題是,當我點擊按鈕時,控件轉到委托方法,但是如果我以觸發方式觸發TouchUpinsideEvent,它不會調用委托方法。這是我的代碼:

MyView.h

@protocol MyViewDelegate;
@interface MyView : UIView
@property(nonatomic,assign)id<MyViewDelegate> delegate;

@protocol MyViewDelegate <NSObject>
- (void)selctedOption:(MyView *)slideView withOption:(UILabel *)option withIndex:   (NSInteger *)labelIndex;

@end

MyView.m

toggleButton = [UIButton buttonWithType:UIButtonTypeCustom];
[toggleButton setTitle:@"" forState:UIControlStateNormal];


//adding target works fine it goes to the finishedDraggingVertical:withEvent method and from there I am calling the delegate method

[toggleButton addTarget:self action:@selector(finishedDraggingVertical:withEvent:)
       forControlEvents:UIControlEventTouchUpInside];

toggleButton.frame = CGRectMake(frame.origin.x, frame.origin.y, frame.size.width, height);

toggleButton.backgroundColor=[UIColor colorWithRed:0.1 green:1.1 blue:0.3 alpha:0.2];
[toggleButton.layer setBorderWidth:10.0];
[toggleButton.layer setBorderColor:[[UIColor lightGrayColor] CGColor]];
toggleButton.layer.cornerRadius=10.0;



[self addSubview:toggleButton];
 **//But If I fire the event programatically this doesn't work it goes to finishedDraggingVertical:withEvent but from there it does not go to the delegate method.**
 [toggleButton sendActionsForControlEvents:UIControlEventTouchUpInside]

MyViewController.h

@interface MyViewController : UIViewController  <MyViewDelegate>

MyViewController.m

//這里我要添加myView並實現委托方法

- (void)viewDidLoad
{
 [super viewDidLoad];
 MyView *myiew1=[[MyView alloc]init];
 myiew1.delegate=self;

[self.view addSubview:slideView1];
}

我知道這是一種解決方法,但是您是否嘗試了以下問題的可接受答案:

UIControl:sendActionsForControlEvents省略了UIEvent

此外,請檢查您使用[self actionsForTarget:target forControlEvent:controlEvent]檢索到的動作是否與您先前在代碼中設置的動作一致。 如果不是,那么有些不對勁。

之所以發生這種情況,可能是因為您在調用之后設置了委托:

 [toggleButton sendActionsForControlEvents:UIControlEventTouchUpInside];

我假設您在視圖的initinitWithFrame方法中添加toggleButton,並且上面的代碼行也位於同一行中。

如果您在finishedDraggingVertical:withEvent的委托方法調用之前打印出delegate對象,則可能會得到Nil

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