在iOS 6 shouldAutorotateToInterfaceOrientation中無效，但在iOS 5.0或中正常工作5.1。我應該需要改變什么iOS 6。這是我的代碼- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {if([[[SampleApplicationAppDelegate instance].callInfoDictionary valueForKey:IS_CHAT] isEqualToString:NO_RESPONSE]){ int nAngle = 0; BOOL bRet = NO; switch (interfaceOrientation) { case UIInterfaceOrientationPortrait: nAngle = 90; bRet = YES; NSLog(@".......Preview = %f %f",_previewCamera.frame.size.width,_previewCamera.frame.size.height); _previewCamera.transform = CGAffineTransformMakeRotation(M_PI*1.5); NSLog(@"Preview = %f %f",_previewCamera.frame.size.width,_previewCamera.frame.size.height); break; case UIInterfaceOrientationPortraitUpsideDown: nAngle = 270; bRet = YES; _previewCamera.transform = CGAffineTransformMakeRotation(M_PI_2); break; case UIInterfaceOrientationLandscapeLeft: nAngle = 0; bRet = YES; //_previewCamera.transform = CGAffineTransformMakeRotation(M_PI*1.5); break; case UIInterfaceOrientationLandscapeRight: nAngle = 180; bRet = YES; //_previewCamera.transform = CGAffineTransformMakeRotation(M_PI_2); break; default: break; } return bRet;} if(interfaceOrientation == UIInterfaceOrientationPortrait || interfaceOrientation == UIInterfaceOrientationPortraitUpsideDown) return YES; return NO; }當我搜索此定向問題時，我發現了所有這一切但對我沒有任何幫助:(請幫助.....
3 回答
慕俠2389804
TA貢獻1719條經驗 獲得超6個贊
之所以發生這種情況，是因為Apple改變了管理Orientation的方式UIViewController。在iOS6中，方向處理方式有所不同。在iOS6中，該 shouldAutorotateToInterfaceOrientation方法已棄用。視圖控制器（例如UINavigationController）不咨詢其子級來確定是否應自動旋轉。默認情況下，UIInterfaceOrientationMaskAll針對iPad 習慣用語和UIInterfaceOrientationMaskAllButUpsideDowniPhone習慣用語，將應用程序和視圖控制器的受支持的界面方向設置為。
如果要將特定的視圖更改為所需的方向，則必須執行某種子類或類別，并重寫自動旋轉方法以返回所需的方向。
將此代碼放在您的根視圖控制器中。這將有助于UIViewController確定其方向。
//RotationIn_IOS6 is a Category for overriding the default orientation.
@implementation UINavigationController (RotationIn_IOS6)
-(BOOL)shouldAutorotate
{
return [[self.viewControllers lastObject] shouldAutorotate];
}
-(NSUInteger)supportedInterfaceOrientations
{
return [[self.viewControllers lastObject] supportedInterfaceOrientations];
}
- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
return [[self.viewControllers lastObject] preferredInterfaceOrientationForPresentation];
}
@end
現在，您需要在viewController中實現以下方法（iOS6中引入）以進行定向
- (BOOL)shouldAutorotate
{
//returns true if want to allow orientation change
return TRUE;
}
- (NSUInteger)supportedInterfaceOrientations
{
//decide number of origination tob supported by Viewcontroller.
return UIInterfaceOrientationMaskAll;
}
- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
//from here you Should try to Preferred orientation for ViewController
}
并將您的代碼放入下面的方法中。無論何時更改設備方向，此方法都將被稱為：
- (void)willAnimateRotationToInterfaceOrientation:(UIInterfaceOrientation) interfaceOrientation duration:(NSTimeInterval)duration
{
if([[[SampleApplicationAppDelegate instance].callInfoDictionary valueForKey:IS_CHAT] isEqualToString:NO_RESPONSE])
{
int nAngle = 0;
BOOL bRet = NO;
switch (interfaceOrientation) {
case UIInterfaceOrientationPortrait:
nAngle = 90;
bRet = YES;
NSLog(@".......Preview = %f %f",_previewCamera.frame.size.width,_previewCamera.frame.size.height);
_previewCamera.transform = CGAffineTransformMakeRotation(M_PI*1.5);
NSLog(@"Preview = %f %f",_previewCamera.frame.size.width,_previewCamera.frame.size.height);
break;
case UIInterfaceOrientationPortraitUpsideDown:
nAngle = 270;
bRet = YES;
_previewCamera.transform = CGAffineTransformMakeRotation(M_PI_2);
break;
case UIInterfaceOrientationLandscapeLeft:
nAngle = 0;
bRet = YES;
//_previewCamera.transform = CGAffineTransformMakeRotation(M_PI*1.5);
break;
case UIInterfaceOrientationLandscapeRight:
nAngle = 180;
bRet = YES;
//_previewCamera.transform = CGAffineTransformMakeRotation(M_PI_2);
break;
default:
break;
}
}
編輯：檢查您的窗口，您需要在窗口上添加控制器，rootViewController而不是addSubview如下所示
self.window.rootViewController=viewController;
有關更多信息，這里是有關iOS6.0 Beta 2 OTA的文章。
我希望這可以幫到你。
寶慕林4294392
TA貢獻2021條經驗 獲得超8個贊
我解決此問題的方法是，當我的應用程序在Delegate類中啟動時替換以下行
window addSubview: navigationController.view
與
window.rootViewController = navigationController
進行此更改后，我的應用開始處理屏幕旋轉
慕桂英546537
TA貢獻1848條經驗 獲得超10個贊
我解決了這個問題，只是用這個
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
if(![AppDelegate instance])
return (interfaceOrientation == UIInterfaceOrientationPortrait) || (interfaceOrientation == UIInterfaceOrientationPortraitUpsideDown);
if([[[AppDelegate instance].callInfoDictionary valueForKey:IS_CHAT] isEqualToString:NO_RESPONSE])
{
int nAngle = 0;
BOOL bRet = NO;
switch (interfaceOrientation) {
case UIInterfaceOrientationPortrait:
{
nAngle = 90;
bRet = YES;
NSLog(@".......Preview = %f %f",_previewCamera.frame.size.width,_previewCamera.frame.size.height);
NSComparisonResult order = [[UIDevice currentDevice].systemVersion compare: @"6.0" options: NSNumericSearch];
if (order == NSOrderedSame || order == NSOrderedDescending)
{
// OS version >= 6.0
NSLog(@"ami iOS 6 er device");
_previewCamera.transform = CGAffineTransformMakeRotation(M_PI_2);
}
else
{
// OS version < 6.0
_previewCamera.transform = CGAffineTransformMakeRotation(M_PI*1.5);
}
NSLog(@"Preview = %f %f",_previewCamera.frame.size.width,_previewCamera.frame.size.height);
NSLog(@"-->%s %d",__FUNCTION__,__LINE__);
break;
}
case UIInterfaceOrientationPortraitUpsideDown:
{
nAngle = 270;
bRet = YES;
NSComparisonResult order = [[UIDevice currentDevice].systemVersion compare: @"6.0" options: NSNumericSearch];
if (order == NSOrderedSame || order == NSOrderedDescending)
{
// OS version >= 6.0
NSLog(@"ami iOS 6 er device");
_previewCamera.transform = CGAffineTransformMakeRotation(M_PI*1.5);
}
else
{
// OS version < 6.0
_previewCamera.transform = CGAffineTransformMakeRotation(M_PI_2);
}
break;
}
case UIInterfaceOrientationLandscapeLeft:
nAngle = 0;
bRet = YES;
//_previewCamera.transform = CGAffineTransformMakeRotation(M_PI*1.5);
break;
case UIInterfaceOrientationLandscapeRight:
nAngle = 180;
bRet = YES;
//_previewCamera.transform = CGAffineTransformMakeRotation(M_PI_2);
break;
default:
break;
}
return bRet;
}
if(interfaceOrientation == UIInterfaceOrientationPortrait || interfaceOrientation == UIInterfaceOrientationPortraitUpsideDown)
return YES;
return NO;
}
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