Question

我创建了Master详细信息应用程序，其中多个详细视图控制器通过替换segue连接到拆分视图。在横向方向上一切正常，但在纵向方向上我缺少打开主表格视图的按钮，并且在屏幕左侧滑动不起作用而且没有打开应用程序的主侧面。

编辑：

在我的DetailViewController中，我有两个方法，与xcode为master-detail app提供的模板相同：

#pragma mark - Split view

- (void)splitViewController:(UISplitViewController *)splitController willHideViewController:(UIViewController *)viewController withBarButtonItem:(UIBarButtonItem *)barButtonItem forPopoverController:(UIPopoverController *)popoverController
{
    barButtonItem.title = NSLocalizedString(@"MasterButton", @"Master");
    [self.navigationItem setLeftBarButtonItem:barButtonItem animated:YES];
    self.masterPopoverController = popoverController;
}

- (void)splitViewController:(UISplitViewController *)splitController willShowViewController:(UIViewController *)viewController invalidatingBarButtonItem:(UIBarButtonItem *)barButtonItem
{
    // Called when the view is shown again in the split view, invalidating the button and    popover controller.
    [self.navigationItem setLeftBarButtonItem:nil animated:YES];
    self.masterPopoverController = nil;
}

编辑2： 在更改detailViewController时，我也改变了委托。

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
    UIViewController *destinationViewController = [segue destinationViewController];
    if ([destinationViewController conformsToProtocol:@protocol(UISplitViewControllerDelegate)]) {
        self.splitViewController.delegate = (id)destinationViewController;
    }
    else {
        self.splitViewController.delegate = nil;
    }
}

编辑3： 我最终通过在我创建的每个DetailViewController中添加这行代码来解决我的问题：

self.splitViewController.delegate = self;

Answer 1

1）这是针对条形按钮：

- (void)splitViewController:(UISplitViewController *)splitController willHideViewController:(UIViewController *)viewController withBarButtonItem:(UIBarButtonItem *)barButtonItem forPopoverController:(UIPopoverController *)popoverController
{

    self.popoverController = popoverController;

    barButtonItem.title = NSLocalizedString(@"List", @"List");

   [self.navigationItem setLeftBarButtonItem:barButtonItem animated:YES];

    self.masterPopoverController = popoverController;
}

2）如果您想添加UIButton，请尝试以下操作：

- (void)splitViewController:(UISplitViewController *)splitController willHideViewController:(UIViewController *)viewController withBarButtonItem:(UIBarButtonItem *)barButtonItem forPopoverController:(UIPopoverController *)popoverController
{

    self.popoverController = popoverController;

    UIButton *btn=[UIButton buttonWithType:UIButtonTypeCustom];
    [btn setImage:[UIImage imageNamed:@"list.png"] forState:UIControlStateNormal];
        //[btn setImage:[UIImage imageNamed:@"list.png"] forState:UIControlStateHighlighted];
    [btn setFrame:CGRectMake(0, 0, 50, 30)];
    [btn addTarget:barButtonItem.target action:barButtonItem.action forControlEvents:UIControlEventTouchUpInside];

    self.navigationItem.leftBarButtonItem=[[UIBarButtonItem alloc]initWithCustomView:btn];
    self.masterPopoverController = popoverController;

}

Answer 2

您需要从

放置barButtonItem

- (void)splitViewController:(UISplitViewController *)svc willHideViewController:(UIViewController *)aViewController withBarButtonItem:(UIBarButtonItem *)barButtonItem forPopoverController:(UIPopoverController *)pc

详细视图控制器的navigationBar。

缺少“主”按钮和滑动手势不工作主/细节ios

2 个答案: