ios - UITapGestureRecognizer 未被调用

Question

我正在将以下 UITapGestureRecognizer 添加到我的 View 中。

- (void)viewDidLoad {

   _focusView = [[PBJFocusView alloc] initWithFrame:CGRectZero];
   _focusTapGestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(_handleFocusTapGesterRecognizer:)];
   _focusTapGestureRecognizer.delegate = self;
   _focusTapGestureRecognizer.numberOfTapsRequired = 1;
   _focusTapGestureRecognizer.enabled = NO;
   [_previewView addGestureRecognizer:_focusTapGestureRecognizer];
}

- (void)_handleFocusTapGesterRecognizer:(UIGestureRecognizer *)gestureRecognizer {

   NSLog(@"Focus");
}

Answer 1

_focusTapGestureRecognizer 应该启用。试试这个

_focusTapGestureRecognizer.enabled = YES;

或 删除这一行

_focusTapGestureRecognizer.enabled = NO;