ios - 我的UIView有一个UIButton作为它的 subview 之一，但不响应Objective-C中的事件

这是我的代码。在尝试解决此问题一两个小时后，它开始显得拥挤。我尝试将启用的用户交互设置为“是”，我尝试仅使用一个按钮，而不使其成为另一个视图的子视图。

现在，我有filterBar> filterBarContainer> filterButton。

- (void)viewDidAppear:(BOOL)animated
{
    [super viewDidAppear:animated];
    self.navigationController.navigationBar.userInteractionEnabled = YES;
    self.view.userInteractionEnabled = YES;
    // Create filter bar with specified dimensions
    UIView *filterBar = [[UIView alloc] initWithFrame:CGRectMake(0, 42, self.view.frame.size.width, self.navigationController.navigationBar.frame.size.height)];
    [filterBar setUserInteractionEnabled:YES];

    // Make it a subview of navigation controller
    [[[self navigationController] navigationBar] addSubview:filterBar];
    [filterBar setBackgroundColor:[[UIColor whiteColor] colorWithAlphaComponent:0.9f]];
    [filterBar setTag:1];

    // Reusable vars
    // CGFloat filterBarX = filterBar.frame.origin.x;
    //CGFloat filterBarY = filterBar.frame.origin.y;
    CGFloat filterBarHeight = filterBar.frame.size.height;
    CGFloat filterBarWidth = filterBar.frame.size.width;

    // Create centre filter button with specified dimensions
    UIView *filterButtonContainer = [[UIView alloc] initWithFrame:CGRectMake(0, 2, filterBarWidth / 2 - 30 , filterBarHeight - 10)];
        [filterButtonContainer setUserInteractionEnabled:YES];

    // Make it a subview of filter bar
    [filterBar addSubview:filterButtonContainer];
    [filterButtonContainer setBackgroundColor:[UIColor redColor]];

    // Centre the button
    [filterButtonContainer setCenter:[filterBar convertPoint:filterBar.center fromView:filterBar.superview]];

     // Add button to filter button
    UIButton *filterButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
    [filterButton setUserInteractionEnabled: YES];
    [filterButton setFrame:CGRectMake(0, 0,40 , 20)];
    [filterButton setTitle:@"test" forState:UIControlStateNormal];
    [filterButtonContainer addSubview:filterButton];
    [filterButton setBackgroundColor:[UIColor yellowColor]];
   // self.filterButton = filterButton;
    [filterButton addTarget:self action:@selector(filterButtonTapped:) forControlEvents:UIControlEventTouchUpInside];
    NSLog(@"dd");
    filterButtonContainer.layer.borderColor = [UIColor blackColor].CGColor;
    filterButtonContainer.layer.borderWidth = 1;

这是我尝试触发的方法。

- (void)filterButtonTapped:(UIButton *)sender
{
    NSLog(@"filter button tapped");
    UIActionSheet *filterOptions = [[UIActionSheet alloc] initWithTitle:@"Filter Garments"
                                                              delegate:self
                                                     cancelButtonTitle:@"Cancel"
                                                destructiveButtonTitle:nil
                                                      otherButtonTitles:@"Recommended", @"What's New", @"Price - High to Low", @"Price - Low to High", nil];
    [filterOptions showInView:self.collectionView];

}

最佳答案

您正在添加filterBar作为navigationBar的子视图，但是您将navigationBar中的y-origin设置为42。然后将filterButtonContainer中的filterBar的y-origin设置为2。假设navigationBar的高度是44，大多数filterBar和您的filterButtonContainer和filterButton的全部都不会在其navigationBar super 视图之内，因此无法选择该按钮。

编辑:为了使其在保持定位不变的情况下是可选的，我建议将过滤器栏添加到self.view。例如，更改:

[[[self navigationController] navigationBar] addSubview:filterBar];

至

[self.view addSubview:filterBar];