在横向模式下将子视图添加到UIScrollView

我有一个视图控制器开始横向模式与UIScrollView在其中。 我尝试创build子视图并将其添加到UIScrollView，但视图的帧大小都是纵向大小。

这是我的代码：

- (void)viewDidLoad { [super viewDidLoad]; [self.scrollView setAutoresizingMask:(UIViewAutoresizingFlexibleWidth|UIViewAutoresizingFlexibleHeight)]; NSArray *colors = [NSArray arrayWithObjects:[UIColor redColor], [UIColor greenColor], [UIColor blueColor], nil]; for (int i = 0; i < colors.count; i++) { CGRect frame = self.scrollView.frame; frame.origin.x = frame.size.width * i; frame.origin.y = 0; UIView *subview = [[UIView alloc] initWithFrame:frame]; subview.backgroundColor = [colors objectAtIndex:i]; [self.scrollView addSubview:subview]; } self.scrollView.contentSize = CGSizeMake(self.scrollView.frame.size.width * colors.count, self.scrollView.frame.size.height); self.scrollView.pagingEnabled = YES; self.scrollView.showsHorizontalScrollIndicator = NO; self.scrollView.showsVerticalScrollIndicator = NO; self.scrollView.scrollsToTop = NO; } 

输出：

Answer 1

 - (void)viewDidLoad { [super viewDidLoad]; [self.scrollView setAutoresizingMask:(UIViewAutoresizingFlexibleWidth|UIViewAutoresizingFlexibleHeight)]; NSArray *colors = [NSArray arrayWithObjects:[UIColor redColor], [UIColor greenColor], [UIColor blueColor], nil]; for (int i = 0; i < colors.count; i++) { CGRect frame = self.scrollView.bounds; frame.origin.x = frame.size.width * i; frame.origin.y = 0; UIView *subview = [[UIView alloc] initWithFrame:frame]; subview.backgroundColor = [colors objectAtIndex:i]; [self.scrollView addSubview:subview]; } [self.scrollView setAutoresizesSubviews:NO]; self.scrollView.contentSize = CGSizeMake(self.scrollView.frame.size.width * colors.count,self.scrollView.frame.size.height); self.scrollView.pagingEnabled = YES; self.scrollView.showsHorizontalScrollIndicator = NO; self.scrollView.showsVerticalScrollIndicator = NO; self.scrollView.scrollsToTop = NO; } - (void) willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration { currentPageOffset = [self.scrollView contentOffset].x / [self.scrollView bounds].size.width; if(UIInterfaceOrientationIsPortrait(toInterfaceOrientation)) { for(int i=0;i<=2;i++) { UIView *currentView = [[self.scrollView subviews] objectAtIndex:i]; [currentView setFrame:CGRectMake((i)*currentView.frame.size.height, 0, [self.scrollView bounds].size.height,[self.scrollView bounds].size.width)]; } [self.scrollView setContentSize:CGSizeMake(self.scrollView.bounds.size.height *3, self.scrollView.bounds.size.width)]; } else { for(int i=0;i<=2;i++) { UIView *currentView = [[self.scrollView subviews] objectAtIndex:i]; [currentView setFrame:CGRectMake((i)*currentView.frame.size.height, 0,[self.scrollView bounds].size.height,[self.scrollView bounds].size.width)]; } [self.scrollView setContentSize:CGSizeMake(self.scrollView.bounds.size.height * 3, self.scrollView.bounds.size.width)]; } } - (void)willAnimateRotationToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation duration:(NSTimeInterval)duration { [self.scrollView setContentOffset:CGPointMake([self.scrollView bounds].size.width * currentPageOffset, 0.0f) animated:NO]; } 

你可以试试这个代码。 使用的值可根据您的要求进行调整。 如果您尝试使用旋转设置框架，请确保您不使用自动调整屏蔽，否则一切都可能出错。 希望能回答你的问题。