dimissModalViewControllerAnimated导致tableView全屏?

时间:2011-06-16 15:12:19

标签: iphone uitableview core-data uiviewcontroller

我有一个带有2个tableViews的RootViewController作为子视图(在IB中创建),每个子视图都有自己的tableViewController类(处理fetchRequests等)。

1 tableView是静态的(用户或modelViews没有更改数据)。

tableView 2在标题中有一个按钮,它提供了一个imagePickerController。 到目前为止没有问题。

问题是,当我关闭imagePicker

 [self dismissModalViewControllerAnimated:YES];

TableView 2变为全屏我试过

[[self rootViewController] dismissModalViewControllerAnimated:YES]

根本没有任何事情发生。它贴在图像选择器上。

我怀疑这是因为很少有视觉创建程序。

有什么想法吗?

提前致谢。

DetartrateD

 -(IBAction)addImageTableAPressed {
UIImagePickerController *imagePicker = [[UIImagePickerController alloc] init];
imagePicker.delegate = self;
[self presentModalViewController:imagePicker animated:YES];
[imagePicker release];  
}

            RootViewController
             ||            ||
             ||            ||    
             \/            \/          addImageTableAPressed
  TableViewControlA  TableViewControlB --------------------->modelViewController

解决mananagedObjectContect .....

     - (void)viewDidLoad {...
 if(managedObjectContext == nil) 
{ 
    managedObjectContext = [(AppDelegate *)[[UIApplication sharedApplication] delegate] managedObjectContext]; 
    NSLog(@"After managedObjectContext: %@",  managedObjectContext);
}
   ...
  }

1 个答案:

答案 0 :(得分:0)

正如我在其中一篇评论中提到的,我更希望让一个视图控制器管理两个表视图。定义一个UIView(rootView),包括2个子视图(tableViewA和tableViewB)。您的RootViewController视图将是rootView,并且此控制器必须是两个表视图的数据源和委托。我在这里给出的代码绝不是完整的,也不是最优的,但是让你很好地了解实现我的解决方案需要什么。

例如:

@interface RootViewController <UITableViewDelegate, UITableViewDataSource> {
    NSArray *dataArrayA;
    NSArray *dataArrayB;
    UITableView tableViewA;
    UITableView tableViewB;
    NSManagedObjectContext *context;
}

@property (nonatomic, retain) NSArray *dataArrayA;
@property (nonatomic, retain) NSArray *dataArrayB;

// in IB, link the dataSource and delegate outlets of both tables to RootViewController
@property (nonatomic, retain) IBOutlet UITableView tableViewA;
@property (nonatomic, retain) IBOutlet UITableView tableViewB;

// this property will allow you to pass the MOC to the RootViewController from 
// the parent view controller, instead of accessing the app delegate from RootViewController
@property (nonatomic, retain) NSManagedObjectContext *context;

// ... etc.

@end



@implementation RootViewController

@synthesize dataArrayA;
@synthesize dataArrayB;
@synthesize tableViewA;
@synthesize tableViewB;
@synthesize context;

// initialize dataArrayA and dataArrayB
- (void)viewDidLoad {
    [super viewDidLoad];

    NSError *error = nil;

    // initialize and configure your fetch request for data going into tableViewA
    NSFetchRequest fetchRequestA = [[NSFetchRequest alloc] init];

    // configure the entity, sort descriptors, predicate, etc.
    // ...

    // perform the fetch
    self.dataArrayA = [context executeFetchRequest:fetchRequestA error:&error];

    // do the same for the data going into tableViewB - the code is very similar, you
    // could factor it out in a private method instead of duplicating it here
    // NSFetchRequest fetchRequestB = [[NSFetchRequest alloc] init]; 

    // omitting the details ... etc.

    self.dataArrayB = [context executeFetchRequest:fetchRequestB error:&error];

    // release objects you don't need anymore, according to memory management rules
    [fetchRequestA release];
    [fetchRequestB release];
}


// Table view methods

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
    // if you have a different number of sections in tableViewA and tableViewB
/*
    if (tableView == tableViewA) {
        return ??;
    } else {
        return ??
    }
*/

    // otherwise, if both table views contain one section
    return 1;
}

// Customize the number of rows in each table view.
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    if (tableView == tableViewA) {
        return [dataArrayA count];
    } else {
        return [dataArrayB count];
    }
}

// Customize the appearance of table view cells.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    UITableViewCell *cell = nil;

    if (tableView == tableViewA) {
        // get the data for the current row in tableViewA
        id objectA = [dataArrayA objectAtIndex:indexPath.row];

        // configure the cell for tableViewA
        cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifierA];

        // etc...
    } else {
        // get the data for the current row in tableViewB
        id objectB = [dataArrayB objectAtIndex:indexPath.row];

        // configure the cell for tableViewB
        cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifierB];
        // etc...
    }
    return cell;
}

// And so on, the same idea applies for the other UITableViewDelegate you would need to 
// implement...


- (void)dealloc {
    [dataArrayA release];
    [dataArrayB release];
    [tableViewA release];
    [tableViewB release];
    [context release];

    // etc...

    [super dealloc];
}

@end

我希望你会发现这很有用。