如何使popoverview圖像點擊imagebutton

Question

我已經創建了一個圖像視圖，並將其分配給imagebutton它顯示在下面的code.Once我點擊圖像應該得到popover，但它不工作。如果我嘗試使用UIPopOverView它不工作。如何創建按鈕popovercontroller。

- (IBAction)showPopover:(UIButton *)sender 
{ 
if(![popoverController isPopoverVisible]){ 
    myPopOver = [[PopViewController alloc] initWithNibName:@"PopViewController" bundle:nil]; 
    popoverController = [[[UIPopoverController alloc] initWithContentViewController:myPopOver] retain]; 

    [popoverController setPopoverContentSize:CGSizeMake(299.0f,111.0f)]; 
    [popoverController presentPopoverFromRect:CGRectMake(10, 10, 200, 200) inView:self.view permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES]; 
} 
else{ 
    [popoverController dismissPopoverAnimated:YES]; 
    } 
} 


- (void)viewDidLoad 
{ 
[super viewDidLoad]; 
imageView=[[UIImageView alloc] initWithFrame:CGRectMake(10, 10,100, 100)]; 
imageView.image=[UIImage imageNamed:@"Dosa.jpg"];  
CGRect textViewFrame = CGRectMake(10, 10, 300, 400); 
textView = [[UITextView alloc] initWithFrame:textViewFrame]; 
textView.returnKeyType = UIReturnKeyDone; 
textView.text = @"\n\n\n\n\n\n\n\nDOSA\nDosa, a common breakfast dish and street food, is rich in carbohydrates, and contains no sugar or saturated fats. "; 
textView.backgroundColor=[UIColor whiteColor]; 
textView.editable=NO; 
textView.delegate = self; 
[self.view addSubview:textView];   
[textView addSubview:imageView];   
textView.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@"Indian.jpg"]]; 
textView.alpha = 0.9; 
textView.font = [UIFont systemFontOfSize:15]; 
imageView.userInteractionEnabled = YES; 
imageButton = [[UIButton alloc]init]; 
[imageButton setFrame:CGRectMake(0, 0, 100, 100)]; 
[imageButton addTarget:self action:@selector(showPopover:) forControlEvents:UIControlEventTouchUpInside]; 
[imageView addSubview:imageButton]; 
[imageButton release]; 
[imageView release]; 
[textView release]; 
if(mrowno==0) 
{ 
    imageView.image=[UIImage imageNamed:@"Dosa.jpg"]; 
    textView.text = @"\n\n\n\n\n\n\n\nDOSA\nDosa, a common breakfast dish and street food, is rich in carbohydrates, and contains no sugar or saturated fats. "; 


} 
} 

Answer 1

試試這個，

popViewController.h

@protocol popViewControllerDelegate 
@end 
@interface PopViewController : UIViewController 
{ 
    id <popViewControllerDelegate> delegate; 
} 
@property (nonatomic,retain) id <popViewControllerDelegate> delegate; 
@end 

popViewController.m

@synthesize delegate; 

viewcontroller.h

popViewController.h 
@interface viewController : UIViewController<popViewControllerDelegate> 
{ 

} 

viewcontroller.m

- (IBAction)showPopover:(UIButton *)sender 
{ 
UIButton *btn = (UIButton *)sender; 
if(![popoverController isPopoverVisible]){ 

myPopOver = [[PopViewController alloc] initWithNibName:@"PopViewController" bundle:nil]; 
myPopOver.delegate=self; 
popoverController = [[[UIPopoverController alloc] initWithContentViewController:myPopOver] retain]; 

[popoverController setPopoverContentSize:CGSizeMake(299.0f,111.0f)]; 
[popoverController presentPopoverFromRect:btn.frame inView:self.view permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES]; 
}}