Question

我想将数据从MainViewController传递给特定的（这取决于用户在GoogleMap中的选择）视图控制器。在MainVC中，我有NSArray，它被称为：userData。代码是：

NSDictionary *tempDictionary = [NSDictionary dictionaryWithObjectsAndKeys:
                                      @"FirstViewController", @"First",
                                      @"SecondViewController", @"Second",
                                      nil];
    NSString *viewControllerIdentifier = [tempDictionary valueForKey:[marker.userData valueForKey:@"controller"]];
    UIViewController *destViewController = [iPhoneStoryboard instantiateViewControllerWithIdentifier:viewControllerIdentifier];
    //destViewController.placeData = marker.userData;
    [self.navigationController pushViewController:destViewController animated:YES];

//destViewController.placeData = marker.userData;不存在。我应该在UIViewController实现中添加这个NSArray吗？还是有什么想法？谢谢Artem：）

Answer 1

如果你确定，你的故事板中的viewController实例化可以处理这些数据，只需创建自己的ViewController类来管理这个NSArray

@interface MyViewController : UIViewController

@property (nonatomic, strong) NSArray placeData;

@end

并在您的示例代码中：

NSDictionary *tempDictionary = [NSDictionary dictionaryWithObjectsAndKeys:
                                  @"FirstViewController", @"First",
                                  @"SecondViewController", @"Second",
                                  nil];
NSString *viewControllerIdentifier = [tempDictionary valueForKey:[marker.userData valueForKey:@"controller"]];
MyViewController *destViewController = (MyViewController *)[iPhoneStoryboard instantiateViewControllerWithIdentifier:viewControllerIdentifier];
destViewController.placeData = marker.userData;
[self.navigationController pushViewController:destViewController animated:YES];

完成此操作后，所有viewControllers（假设有超过1个）都可以将此作为母类使用

iOS如何将数据从UIViewController传递到destinationViewController

1 个答案: