UIScrollView調整大小

Question

我有一個問題，我想阻止橫向應用程序，並顯示圖片768 * 1024（（橫向大小的ipad），但應用程序不停留在橫向+滾動視圖在1024 * 1024時在景觀，上面用我的UIScrollView的代碼的某些部分，其顯示PNG：

const CGFloat kScrollObjHeight = 768.0; 
const CGFloat kScrollObjWidth = 1024.0; 
const NSUInteger kNumImages  = 46; 

- (void)layoutScrollImages 
{ 
UIImageView *view = nil; 
NSArray *subviews = [FirstScrollView subviews]; 

// reposition all image subviews in a horizontal serial fashion 
CGFloat curXLoc = 0; 
for (view in subviews) 
{ 
    if ([view isKindOfClass:[UIImageView class]] && view.tag > 0) 
    { 
     CGRect frame = view.frame; 
     frame.origin = CGPointMake(curXLoc, 0); 
     view.frame = frame; 

     curXLoc += (kScrollObjWidth); 
    } 
} 

// set the content size so it can be scrollable 
[FirstScrollView setContentSize:CGSizeMake((kNumImages * kScrollObjWidth), [FirstScrollView bounds].size.height)]; 
} 

- (void)didReceiveMemoryWarning 
{ 
[super didReceiveMemoryWarning]; 
// Release any cached data, images, etc that aren't in use. 
} 

#pragma mark - View lifecycle 

- (void)viewDidLoad 
{ 
    [FirstScrollView setBackgroundColor:[UIColor blackColor]]; 
    [FirstScrollView setCanCancelContentTouches:NO]; 
    FirstScrollView.indicatorStyle = UIScrollViewIndicatorStyleWhite; 
    FirstScrollView.clipsToBounds = YES;  // default is NO, we want to restrict drawing within our scrollview 
FirstScrollView.scrollEnabled = YES; 

FirstScrollView.pagingEnabled = YES; 
    // FirstScrollView.frame = CGRectMake(0, 0, 1024, 768); 

NSUInteger i; 
for (i = 1; i <= kNumImages; i++) 
{ 
    NSString *imageName = [NSString stringWithFormat:@"page%d.png", i]; 
    UIImage *image = [UIImage imageNamed:imageName]; 
    UIImageView *imageView = [[UIImageView alloc] initWithImage:image]; 

    CGRect rect = imageView.frame; 
    rect.size.height = kScrollObjHeight; 
    rect.size.width = kScrollObjWidth; 
    imageView.frame = rect; 
    imageView.tag = i; 
    [FirstScrollView addSubview:imageView]; 
    [imageView release]; 
} 

[self layoutScrollImages]; 
} 

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { 
//return YES; 
return interfaceOrientation == UIInterfaceOrientationLandscapeLeft; 
} 

Answer 1

重寫你的程序的

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation 

方法，並返回NO時interfaceOrientation == UIInterfaceOrientationPortrait，或任何其他方向你不想支持。