iPhone 方向改变时改变 UIViews 的位置
Change UIViews position when iPhone orientation changes
我试图在 iPhone 的方向改变时改变 UIViews
的位置。它类似于 this question;但不是 3 views
,而是 2 views
。当 iPhone 处于纵向模式时,我希望 views
一个在另一个之上。在横向模式下,它们应该并排。
所以我尝试了以下方法:
willAnimateRotationToInterfaceOrientation:duration:
但该方法已被弃用。我该怎么做才能检查 iPhone 的方向何时发生变化?
更新
我尝试了以下方法:感谢@Sean 的指导!!
- (void)viewDidLayoutSubviews
{
[super viewDidLayoutSubviews];
self.tableView.frame = CGRectMake(0, 0, 100, 200); // This Works
}
- (void)viewWillTransitionToSize:(CGSize)size withTransitionCoordinator:(id<UIViewControllerTransitionCoordinator>)coordinator
{
[super viewWillTransitionToSize:size withTransitionCoordinator:coordinator];
CGFloat viewWidth = self.view.frame.size.width;
CGFloat viewHeight = self.view.frame.size.height;
if (size.width >= size.height)
{
self.containerView.frame = CGRectMake(0, 0, viewWidth, 272);
self.tableView.frame = CGRectMake(self.containerView.frame.size.height, 0, viewWidth, viewHeight - self.containerView.frame.size.height);
NSLog(@"Portrait Mode"); // Get the NSLog, but frames don't change
}
else
{
self.containerView.frame = CGRectMake(0, 0, viewWidth / 2, viewHeight);
self.tableView.frame = CGRectMake(viewWidth / 2, 0, viewHeight / 2, viewHeight);
NSLog(@"Landscape Mode"); // Get the NSLog, but frames don't change
}
}
因此,当我更改 viewDidLayoutSubviews
中的帧时,它起作用了。但是当我尝试在 viewWillTransition...
中更改它们时,它并没有改变,但我得到了 NSLogs
.
您可以使用以下代码检查设备方向:
UIInterfaceOrientation orientation = [UIApplication sharedApplication].statusBarOrientation;
if(orientation == 0) //Default orientation
//UI is in Default (Portrait) -- this is really a just a failsafe.
else if(orientation == UIInterfaceOrientationPortrait)
//Do something if the orientation is in Portrait
else if(orientation == UIInterfaceOrientationLandscapeLeft)
// Do something if Left
else if(orientation == UIInterfaceOrientationLandscapeRight)
//Do something if right
您可以根据需要创建两个独立的视图,并根据设备方向呈现它们。
苹果推荐使用以下方法:
- (void)viewWillTransitionToSize:(CGSize)size
withTransitionCoordinator:(id<UIViewControllerTransitionCoordinator>)coordinator
示例:
- (void)viewWillTransitionToSize:(CGSize)size
withTransitionCoordinator:(id<UIViewControllerTransitionCoordinator>)coordinator
{
[super viewWillTransitionToSize:size withTransitionCoordinator:coordinator];
if (size.width >= size.height) {
// Landscape frames
self.subviewA.frame = CGRectMake(x, y, width, height);
self.subviewB.frame = CGRectMake(x, y, width, height);
} else {
// Portrait frames
self.subviewA.frame = CGRectMake(x, y, width, height);
self.subviewB.frame = CGRectMake(x, y, width, height);
}
}
确保在实施此解决方案时调用如上所示的超级 class 方法。
我试图在 iPhone 的方向改变时改变 UIViews
的位置。它类似于 this question;但不是 3 views
,而是 2 views
。当 iPhone 处于纵向模式时,我希望 views
一个在另一个之上。在横向模式下,它们应该并排。
所以我尝试了以下方法:
willAnimateRotationToInterfaceOrientation:duration:
但该方法已被弃用。我该怎么做才能检查 iPhone 的方向何时发生变化?
更新
我尝试了以下方法:感谢@Sean 的指导!!
- (void)viewDidLayoutSubviews
{
[super viewDidLayoutSubviews];
self.tableView.frame = CGRectMake(0, 0, 100, 200); // This Works
}
- (void)viewWillTransitionToSize:(CGSize)size withTransitionCoordinator:(id<UIViewControllerTransitionCoordinator>)coordinator
{
[super viewWillTransitionToSize:size withTransitionCoordinator:coordinator];
CGFloat viewWidth = self.view.frame.size.width;
CGFloat viewHeight = self.view.frame.size.height;
if (size.width >= size.height)
{
self.containerView.frame = CGRectMake(0, 0, viewWidth, 272);
self.tableView.frame = CGRectMake(self.containerView.frame.size.height, 0, viewWidth, viewHeight - self.containerView.frame.size.height);
NSLog(@"Portrait Mode"); // Get the NSLog, but frames don't change
}
else
{
self.containerView.frame = CGRectMake(0, 0, viewWidth / 2, viewHeight);
self.tableView.frame = CGRectMake(viewWidth / 2, 0, viewHeight / 2, viewHeight);
NSLog(@"Landscape Mode"); // Get the NSLog, but frames don't change
}
}
因此,当我更改 viewDidLayoutSubviews
中的帧时,它起作用了。但是当我尝试在 viewWillTransition...
中更改它们时,它并没有改变,但我得到了 NSLogs
.
您可以使用以下代码检查设备方向:
UIInterfaceOrientation orientation = [UIApplication sharedApplication].statusBarOrientation;
if(orientation == 0) //Default orientation
//UI is in Default (Portrait) -- this is really a just a failsafe.
else if(orientation == UIInterfaceOrientationPortrait)
//Do something if the orientation is in Portrait
else if(orientation == UIInterfaceOrientationLandscapeLeft)
// Do something if Left
else if(orientation == UIInterfaceOrientationLandscapeRight)
//Do something if right
您可以根据需要创建两个独立的视图,并根据设备方向呈现它们。
苹果推荐使用以下方法:
- (void)viewWillTransitionToSize:(CGSize)size
withTransitionCoordinator:(id<UIViewControllerTransitionCoordinator>)coordinator
示例:
- (void)viewWillTransitionToSize:(CGSize)size
withTransitionCoordinator:(id<UIViewControllerTransitionCoordinator>)coordinator
{
[super viewWillTransitionToSize:size withTransitionCoordinator:coordinator];
if (size.width >= size.height) {
// Landscape frames
self.subviewA.frame = CGRectMake(x, y, width, height);
self.subviewB.frame = CGRectMake(x, y, width, height);
} else {
// Portrait frames
self.subviewA.frame = CGRectMake(x, y, width, height);
self.subviewB.frame = CGRectMake(x, y, width, height);
}
}
确保在实施此解决方案时调用如上所示的超级 class 方法。