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我正在開發基於UIPageViewController的應用程序,它可以在iPhone和iPad上使用。對於iPhone來說,沒有問題,因爲控制器的脊椎位置始終設置爲UIPageViewControllerSpineLocationMin。然而,在iPad中,當設備方向設置爲橫向時,我需要將主幹位置設置爲UIPageViewControllerSpineLocationMid。UIPageViewController在iPad上加載橫屏時的黑屏
我有一個奇怪的問題,只有當我橫向裝入控制器,下面的視頻會說明情況.. YouTubeVideo
正如你所看到的,一切完美的作品時,我的肖像加載控制器當我在橫向加載時旋轉設備後也是如此。
我真的不知道問題出在哪裏。這裏是我用來加載控制器的代碼:
if (chapter.controllers) {
currentPage = [chapter bookPageForCharIndex:location];
//Load the correct controller for the bookmark page
NSArray *array = nil;
if (currentPage >= 0 && currentPage < chapter.controllers.count) {
if (UIDeviceOrientationIsLandscape([[UIDevice currentDevice]orientation]) && UI_USER_INTERFACE_IDIOM()==UIUserInterfaceIdiomPad) {
[self setDoubleSided:YES];
if (chapter.controllers.count > currentPage+1) {
array = [[NSArray alloc]initWithObjects:[chapter.controllers objectAtIndex:currentPage],[chapter.controllers objectAtIndex:currentPage+1],nil];
}
else {
array = [[NSArray alloc]initWithObjects:[chapter.controllers objectAtIndex:currentPage],[[[LSBookPageViewController alloc]init]autorelease],nil];
}
}
else {
array = [[NSArray alloc]initWithObjects:[chapter.controllers objectAtIndex:currentPage],nil];
}
}
else {
return;
}
[self playSoundsOfChapter:chapter];
if (isRestarting) {
[self setViewControllers:array
direction:UIPageViewControllerNavigationDirectionReverse
animated:YES
completion:nil];
isRestarting = NO;
}
else {
[self setViewControllers:array
direction:UIPageViewControllerNavigationDirectionForward
animated:YES
completion:nil];
}
[array release];
}
不幸的是陣中擁有完全相同的2級需要的物品.. – Lolloz89 2012-08-14 12:24:31
奇怪的事情發生在這裏。在該範圍的數組已滿(2元),但如果我檢查是這樣的: - (空)viewDidAppear :(BOOL)動畫NSLog(@「%d」,[[self viewControllers] count]); } } 我得到一個0 ... – Lolloz89 2012-08-14 13:23:33
你在正確的軌道上; ;-) – Mundi 2012-08-14 14:34:51