UIScreenEdgePanGestureRecognizer无法响应/失效

没有指定属性 - edges

具体实现代码如下：

- (void)viewDidLoad

{

    [superviewDidLoad];

    

    // 侧滑手势

    UIScreenEdgePanGestureRecognizer *edgePanGesture = [[UIScreenEdgePanGestureRecognizeralloc] initWithTarget:selfaction:@selector(edgePanGestureResponse:)];

    edgePanGesture.edges = UIRectEdgeLeft;

    [self.viewaddGestureRecognizer:edgePanGesture]; 

}

- (void)edgePanGestureResponse:(UIScreenEdgePanGestureRecognizer *)recognizer

{

    CGFloat containViewX = [recognizer translationInView:self.view].x;

    NSLog(@"containViewX = %f",containViewX);

}