Question

我有一个带有Add BarButton的UI工具栏。我希望这能在下级viewController中触发一个动作。我被卡住了。

工具栏设置如下：

TopViewController.h

IBOutlet UIToolbar* toolbar;
@property (retain, nonatomic) IBOutlet UIToolbar *homeButton;
@property (retain, nonatomic) IBOutlet UIToolbar *addButton;

- (IBAction)homePlease:(id)sender;
- (IBAction)addStuff:(id)sender;

TopViewController.m

@class ItemViewController;
#import "ItemViewController.h"

- (IBAction)homePlease:(id)sender {
    //NSLog(@"%s", __FUNCTION__);
    [self dismissViewControllerAnimated:YES completion:nil];
}

- (IBAction)addStuff:(id)sender {
    NSLog(@"%s", __FUNCTION__);
    [self.itemViewController insertNewObject:self]; <-----
}

ItemViewController：

- (void)insertNewObject:(id)sender {
    //NSLog(@"%s", __FUNCTION__);

    AddItemViewController *addItem = [[AddItemViewController alloc] initWithNibName:@"AddItem-iPad" bundle:nil];


    // Create a new managed object context for the new item - set its persistent store coordinator
    // to the same as that from the fetched results controller's context.

    NSManagedObjectContext .......

    [self.addContext setPersistentStoreCoordinator:[[self.fetchedResultsController managedObjectContext] persistentStoreCoordinator]];

    addItem.item = (DDItem *)[NSEntityDescription insertNewObjectForEntityForName:@"Item" inManagedObjectContext:context];

    UINavigationController *nc = [[UINavigationController alloc] initWithRootViewController:addItem];
    nc.modalPresentationStyle = UIModalPresentationFormSheet;
    [self presentViewController:nc animated:YES completion:nil];

}

“主页”按钮正常工作。

addButton会触发（我看到日志）。但没有其他事情发生。 “添加”按钮连接到IBAction。

欢迎任何建议

Answer 1

似乎this answer是正确的。您必须在其呈现视图控制器中设置按钮。我希望这有助于其他人。

ios6 - 如何使工具栏按钮在另一个视图控制器中执行操作

1 个答案: