UITapGestureRecognizer不響應

新建一個界面GBDatePickerViewController在裏面初始化相關數據

- (void) setupCtrl

{

    //背景

    self.bgImageView = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, SCREEN_WIDTH, SCREEN_HEIGHT)];

    self.bgImageView.backgroundColor = [UIColor blackColor];

    self.bgImageView.alpha = 0.5;

    self.bgImageView.userInteractionEnabled = YES;

    [self.view addSubview:self.bgImageView]；

    UITapGestureRecognizer *tapGesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(hideDatePicker:)];

    tapGesture.numberOfTapsRequired = 1;

    tapGesture.numberOfTouchesRequired = 1;

    tapGesture.delegate = self;

    [self.bgImageView addGestureRecognizer:tapGesture]；  

    CGFloat height = kSetDateViewHeight;

    GBSetDateView *setDateView = [[GBSetDateView alloc] initWithFrame:CGRectMake(0,SCREEN_HEIGHT-kIphone6ScaleH(height), SCREEN_WIDTH,kIphone6ScaleH(height))

                                                         calendarType:kProfileInfo.calendarType

                                                           selectDate:kProfileInfo.birthday];

    setDateView.selectDateDelegate = self.datePickerDelegate;

        [self.view addSubview:setDateView];

    

}

 

- (void) hideDatePicker:(UITapGestureRecognizer *)sender

{

    [self.view removeFromSuperview];

}

 

在外部調用展現代碼以下：

 

     GBDatePickerViewController *datePickerViewController = [[GBDatePickerViewController alloc] init];

    

    [[UIApplication sharedApplication] sendAction:@selector(resignFirstResponder) to:nil from:nil forEvent:nil];

    [[[UIApplication sharedApplication] keyWindow] addSubview:datePickerViewController.view];

    運行界面以下：

 

點擊黑色的背景，手勢不起做用研究了半天終於找到緣由了

_datePickerViewController = [[GBDatePickerViewController alloc] init];

    

    [[UIApplication sharedApplication] sendAction:@selector(resignFirstResponder) to:nil from:nil forEvent:nil];

    [[[UIApplication sharedApplication] keyWindow] addSubview:_datePickerViewController.view];

 

 

把新界面的viewcontroller設成成員變量。該tap就起做用了。手勢事件的響應鏈傳遞。。。。

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