沒有尺寸的Popover

Question

我做了一個popover類，我可以很容易地調用基本的popovers - 你給它的數據和設置的大小，它應該做的休息。

這工作正常，直到iOS5，現在彈出窗口打開，但只有邊框，沒有空白或內容。

我搜索和搜索，任何想法，你可以扔我的路將是偉大的。

@protocol BasicPickerDelegate 
- (void)basicPickerItemSelected:(NSMutableDictionary *)thisDic; 
@end 


@interface BasicPickerController : UITableViewController { 

// data 

IBOutlet NSMutableArray *theData; 

// stuff to set 

IBOutlet int myWidth; 
IBOutlet int myHeight; 

IBOutlet int myPopoverNum; 

// delegate 
id<BasicPickerDelegate> delegate;  

} 

@property (nonatomic, retain) IBOutlet NSMutableArray *theData; 

@property (nonatomic, assign) IBOutlet int myWidth; 
@property (nonatomic, assign) IBOutlet int myHeight; 
@property (nonatomic, assign) IBOutlet int myPopoverNum; 

@property (nonatomic, assign) id<BasicPickerDelegate> delegate; 

- (void)setSize; 
- (void)checkData; 

@end 

那麼的setSize功能的viewDidLoad

- (void)setSize { 

    if (!myWidth || !myHeight) { 

     NSLog(@"WIDTH AND HEIGHT NOT SET, SETTING DEFAULTS"); 
     myWidth = 100; 
     myHeight = 100; 

    } 

    self.contentSizeForViewInPopover = CGSizeMake(myWidth, myHeight); 
} 

然後我把它稱爲是這樣的：

- (IBAction)showBasicPopover:(id)sender { 

    // Show Basic Popover - can be reused 

    if (basicPicker != nil) { 

     self.basicPicker = nil; 
     [self.basicPicker release]; 

    } 

    self.basicPicker = [[[BasicPickerController alloc] initWithStyle:UITableViewStylePlain] autorelease]; 

    basicPicker.delegate = self; 

    self.basicPickerPopover = [[[UIPopoverController alloc] 
            initWithContentViewController:basicPicker] autorelease];  

    // Give popover the data it needs 

    NSMutableDictionary *sizeDic = [self returnPopoverSize:[sender tag]]; 

    self.basicPicker.myHeight = [[sizeDic objectForKey:@"height"] intValue]; 
    self.basicPicker.myWidth = [[sizeDic objectForKey:@"width"] intValue]; 
    self.basicPicker.myPopoverNum = [sender tag]; 

    [basicPicker viewDidLoad]; 

    self.basicPicker.theData = [self returnPopoverData:[sender tag]]; 

    NSLog(@"giving popover dic (%d) with %d derps", [sender tag], [self.basicPicker.theData count]); 

    // Set display settings and show popover 

    [basicPicker viewWillAppear:YES]; 

    CGRect popoverRect = [self.view convertRect:[sender frame] 
             fromView:[sender superview]]; 

    [self.basicPickerPopover presentPopoverFromRect:popoverRect 
              inView:self.view 
          permittedArrowDirections:UIPopoverArrowDirectionAny 
              animated:YES]; 

} 

當我運行它時，WIDTH AND HEIGHT NOT SET, SETTIN DEFAULTS對話上來。出於某種原因，它不會讀取它給出的值。雖然有一些小動作，即使我可以把它們讀入它也不認爲它們是有效的，並且會覆蓋它們。

編輯：所以基本上：

用的setSize被稱爲viewDidLoad中它不知道寬度和高度是什麼。所以它設置了默認值。

如果在viewDidLoad中沒有調用setSize，它就會出現「沒有大小」 - 即它有彈出邊框，但根本沒有內容。

當在viewWillAppear，viewDidAppear或類似的東西（在viewDidLoad之後）調用setSize時，它實際上並沒有設置popover的大小。

Answer 1

終於明白了這一點。

我需要之前創建酥料餅，但初始化之後指定寬度/高度變量。

修改稿下面的代碼：

self.basicPicker = [[[BasicPickerController alloc] initWithStyle:UITableViewStylePlain] autorelease]; 

// Give popover the data it needs 

basicPicker.delegate = self; 

NSMutableDictionary *sizeDic = [self returnPopoverSize:[sender tag]]; 

self.basicPicker.myHeight = [[sizeDic objectForKey:@"height"] intValue]; 
self.basicPicker.myWidth = [[sizeDic objectForKey:@"width"] intValue]; 
self.basicPicker.myPopoverNum = [sender tag]; 

// Now init 

self.basicPickerPopover = [[[UIPopoverController alloc] 
          initWithContentViewController:basicPicker] autorelease];  

[basicPicker viewDidLoad];