PFQueryTableView不更新/如何更新

Question

新的一天新問題我想。

我正在使用帶有5個按鈕的JASidePanel，每個按鈕都會改變一個變量的值。 變量在MyTableController.m中用作parseClassName。

- (id)initWithStyle:(UITableViewStyle)style 
{ 
    self = [super initWithStyle:style]; 
    if (self) { 
     // Custom the table 

     // The className to query on 
     if (_sDay==Nil) { 
      self.parseClassName = @"Montag"; 
     }else{ 
     self.parseClassName = self.sDay; 
     } 
     // The key of the PFObject to display in the label of the default cell style 
     self.textKey = @"Fach"; 

     // Whether the built-in pull-to-refresh is enabled 
     self.pullToRefreshEnabled = YES; 

     // Whether the built-in pagination is enabled 
     self.paginationEnabled = NO; 

     // The number of objects to show per page 
     self.objectsPerPage = 5; 
    } 
    return self; 
} 




- (void)viewDidLoad { 
    [super viewDidLoad]; 

    UIImageView *imageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"hintergrund"]]; 
    imageView .frame = CGRectMake(0,0,255,458); 
    [self.view addSubview:imageView]; 


    CGRect frameBtn = CGRectMake(0.0f, 0.0f, 254.0f, 50.0f); 
    self.bMonday = [UIButton buttonWithType:UIButtonTypeCustom]; 
    [self.bMonday setBackgroundImage:[UIImage imageNamed:@"button_rechts_1"] forState:UIControlStateNormal]; 
    [self.bMonday setTitle:@"Montag" forState:UIControlStateNormal]; 
    [self.bMonday setFrame:frameBtn]; 
    [self.bMonday addTarget:self 
        action:@selector(monday:) 
       forControlEvents:UIControlEventTouchUpInside]; 
    [self.view addSubview:self.bMonday]; 



    CGRect frameBtn2 = CGRectMake(0.0f, 50.0f, 254.0f, 50.0f); 
    self.bTuesday = [UIButton buttonWithType:UIButtonTypeCustom]; 
    [self.bTuesday setBackgroundImage:[UIImage imageNamed:@"button_rechts_1"] forState:UIControlStateNormal]; 
    [self.bTuesday setTitle:@"Dienstag" forState:UIControlStateNormal]; 
    [self.bTuesday setFrame:frameBtn2]; 
    [self.bTuesday addTarget:self 
         action:@selector(tuesday:) 
      forControlEvents:UIControlEventTouchUpInside]; 

    [self.view addSubview:self.bTuesday]; 


    CGRect frameBtn3 = CGRectMake(0.0f, 100.0f, 254.0f, 50.0f); 
    self.bWendsday = [UIButton buttonWithType:UIButtonTypeCustom]; 
    [self.bWendsday setBackgroundImage:[UIImage imageNamed:@"button_rechts_1"] forState:UIControlStateNormal]; 
    [self.bWendsday setTitle:@"Mittwoch" forState:UIControlStateNormal]; 
    [self.bWendsday setFrame:frameBtn3]; 
    [self.bWendsday addTarget:self 
         action:@selector(wendsday:) 
      forControlEvents:UIControlEventTouchUpInside]; 

    [self.view addSubview:self.bWendsday]; 


    CGRect frameBtn4 = CGRectMake(0.0f, 150.0f, 254.0f, 50.0f); 
    self.bThursday = [UIButton buttonWithType:UIButtonTypeCustom]; 
    [self.bThursday setBackgroundImage:[UIImage imageNamed:@"button_rechts_1"] forState:UIControlStateNormal]; 
    [self.bThursday setTitle:@"Donnerstag" forState:UIControlStateNormal]; 
    [self.bThursday setFrame:frameBtn4]; 
    [self.bThursday addTarget:self 
         action:@selector(thursday:) 
      forControlEvents:UIControlEventTouchUpInside]; 

    [self.view addSubview:self.bThursday]; 


    CGRect frameBtn5 = CGRectMake(0.0f, 200.0f, 254.0f, 50.0f); 
    self.bFriday = [UIButton buttonWithType:UIButtonTypeCustom]; 
    [self.bFriday setBackgroundImage:[UIImage imageNamed:@"button_rechts_1"] forState:UIControlStateNormal]; 
    [self.bFriday setTitle:@"Freitag" forState:UIControlStateNormal]; 
    [self.bFriday setFrame:frameBtn5]; 
    [self.bFriday addTarget:self 
        action:@selector(friday:) 
      forControlEvents:UIControlEventTouchUpInside]; 

    [self.view addSubview:self.bFriday]; 






} 

-(void)monday:(id)sender { 

    UINavigationController *navController = (UINavigationController*) self.sidePanelController.centerPanel; 

    MyTableController *myNewTableController = (MyTableController*)[navController.viewControllers objectAtIndex:0]; 
    myNewTableController.sDay = @"Montag"; 
    NSLog(@"%@",myNewTableController.sDay); 

} 

-(void)tuesday:(id)sender { 

    UINavigationController *navController = (UINavigationController*) self.sidePanelController.centerPanel; 

    MyTableController *myNewTableController = (MyTableController*)[navController.viewControllers objectAtIndex:0]; 
    myNewTableController.sDay = @"Dienstag"; 
    NSLog(@"%@",myNewTableController.sDay); 


} 
-(void)wendsday:(id)sender { 

    UINavigationController *navController = (UINavigationController*) self.sidePanelController.centerPanel; 

    MyTableController *myNewTableController = (MyTableController*)[navController.viewControllers objectAtIndex:0]; 
    myNewTableController.sDay = @"Mittwoch"; 
    NSLog(@"%@",myNewTableController.sDay); 


} 
-(void)thursday:(id)sender { 

    UINavigationController *navController = (UINavigationController*) self.sidePanelController.centerPanel; 

    MyTableController *myNewTableController = (MyTableController*)[navController.viewControllers objectAtIndex:0]; 
    myNewTableController.sDay = @"Donnerstag"; 
    NSLog(@"%@",myNewTableController.sDay); 


} 
-(void)friday:(id)sender { 

    UINavigationController *navController = (UINavigationController*) self.sidePanelController.centerPanel; 

    MyTableController *myNewTableController = (MyTableController*)[navController.viewControllers objectAtIndex:0]; 
    myNewTableController.sDay = @"Freitag"; 
    NSLog(@"%@",myNewTableController.sDay); 


} 

現在的問題是，PFQueryUITableView不顯示新parseClass的內容，沒有任何人有一個想法，爲什麼？ 非常感謝！

Answer 1

在您的monday ... friday方法中，您將設置爲sDay，但您並未更改存儲在parseClassName中的值。你可以解決它的一種方法是添加以下到您的每一個方法

myNewTableController.parseClassName = @"SOME VALUE";

另一種選擇是定製的setter爲sDay，以便更新parseClassName的代碼看起來像下面

- (void)setSDay:(NSString *)sDay 
{ 
    if (![_sDay isEqualToString:sDay]) { 
     _sDay = sDay; 
     self.parseClassName = sDay; 
    } 
}