iPhone啓動方向（再次！）

Question

EIDT：固定。它看起來像是一個模擬器問題。 由於Gabriel

一個模擬器，我得到只此：

--- UIDeviceOrientationDidChangeNotification -> [<UIDevice: 0x7577d30>] { 

但我得到的新通知的整體筏在設備上...

--- UIDeviceOrientationDidChangeNotification -> [<UIDevice: 0x1dd5a0c0>] { 
--- UIApplicationDidEndResumeAnimationNotification -> [<UIApplication: 0x1dd63500>] (null) 
--- UIDeviceOrientationDidChangeNotification -> [<UIDevice: 0x1dd5a0c0>] { 
--- _UIApplicationDidBeginIgnoringInteractionEventsNotification -> [<UIApplication: 0x1dd63500>] (null) 
--- UIWindowWillRotateNotification -> [<UIWindow: 0x1e866b40; frame = (0 0; 320 568); layer = <UIWindowLayer: 0x1e866ad0>>] { 
--- UIApplicationWillChangeStatusBarOrientationNotification -> [<UIApplication: 0x1dd63500>] { 
--- UIApplicationWillChangeStatusBarFrameNotification -> [<UIApplication: 0x1dd63500>] { 
--- UIViewAnimationDidCommitNotification -> [UIViewAnimationState] { 
--- UIApplicationDidChangeStatusBarOrientationNotification -> [<UIApplication: 0x1dd63500>] { 
--- UIApplicationDidChangeStatusBarFrameNotification -> [<UIApplication: 0x1dd63500>] { 
--- UIWindowWillAnimateRotationNotification -> [<UIWindow: 0x1e866b40; frame = (0 0; 320 568); layer = <UIWindowLayer: 0x1e866ad0>>] { 
--- UIViewAnimationDidCommitNotification -> [UIViewAnimationState] { 
--- UIViewAnimationDidStopNotification -> [<UIViewAnimationState: 0x1e8692f0>] { 
--- _UIApplicationDidEndIgnoringInteractionEventsNotification -> [<UIApplication: 0x1dd63500>] (null) 
--- UIWindowDidRotateNotification -> [<UIWindow: 0x1e866b40; frame = (0 0; 320 568); layer = <UIWindowLayer: 0x1e866ad0>>] { 
--- UIViewAnimationDidStopNotification -> [<UIViewAnimationState: 0x1e867ea0>] { 

哦...

---

我真的把我的頭髮拉在這個上面。我在這裏看到了許多有關S.O.的問題。但找不到爲我工作的人。

我正在使用最簡單的例子，Xcode 4.6.2，新項目，空應用程序。

結果是，如果應用程序在縱向中啓動，則它可以旋轉到四種支持的方向中的任意一種。

但是如果在開始景觀，它並沒有執行初始旋轉，即使在發射後的設備旋轉確實兌現了四種可能的旋轉。

請注意，我已經實現所需的iOS 5和iOS 6的一切，並且該應用確實在所有iOS版本除了爲其失敗到處初始方向工作。

而且，請注意，我只有「純香草」的局面，其中設備支持所有方向和應該工作「開箱即用」後（除了它不！）

#import "AppDelegate.h" 

@interface TestUIVIew: UIView 
@end 
@implementation TestUIVIew 
- (void) drawRect: (CGRect) rect { 
    CGContextRef context = ::UIGraphicsGetCurrentContext() ; 
    CGRect bounds = self.bounds ; 
    CGMutablePathRef p = ::CGPathCreateMutable() ; 

    CGFloat minx = ::CGRectGetMinX(bounds) ; 
    CGFloat miny = ::CGRectGetMinY(bounds) ; 
    CGFloat maxx = ::CGRectGetMaxX(bounds) ; 
    CGFloat maxy = ::CGRectGetMaxY(bounds) ; 

    CGPoint TL = (CGPoint) {minx, miny} ; 
    CGPoint BL = (CGPoint) {minx, maxy} ; 
    CGPoint TR = (CGPoint) {maxx, miny} ; 
    CGPoint BR = (CGPoint) {maxx, maxy} ; 

    ::CGPathMoveToPoint  (p, 0, TL.x, TL.y) ; 
    ::CGPathAddLineToPoint (p, 0, BR.x, BR.y) ; 
    ::CGPathMoveToPoint  (p, 0, TR.x, TR.y) ; 
    ::CGPathAddLineToPoint (p, 0, BL.x, BL.y) ; 

    ::CGContextSetLineWidth(context, 5.0f) ; 
    ::CGContextSetStrokeColorWithColor(context, [UIColor blueColor].CGColor) ; 
    ::CGContextAddPath(context, p) ; 

    ::CGContextStrokePath(context) ; 
    ::CGPathRelease(p) ; 
} 
@end 

@interface SimplestViewController : UIViewController 
@end 
@implementation SimplestViewController 
- (BOOL) shouldAutorotateToInterfaceOrientation: (UIInterfaceOrientation) interfaceOrientation { 
    return YES ; 
} 
- (NSUInteger) supportedInterfaceOrientations { 
    return UIInterfaceOrientationMaskAll ; 
} 
- (BOOL) shouldAutorotate { 
    return YES ; 
} 
@end 

@implementation AppDelegate 
- (BOOL) application: (UIApplication *) application 
didFinishLaunchingWithOptions: (NSDictionary *) launchOptions { 

    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; 

    UIViewController * vc = [SimplestViewController new] ; 
    vc.view = [TestUIVIew new] ; 
    self.window.rootViewController = vc ; 

    self.window.backgroundColor = [UIColor greenColor]; 
    [self.window makeKeyAndVisible]; 

    return YES; 
} 
@end 

我已經嘗試過模擬器5.0,5.1,6.0,& 6.1的所有變體，結果完全相同： 看來我只是沒有得到任何旋轉消息，或者如果我這樣做，它是不受尊敬的。

所以，我主要添加了這個：

#import <UIKit/UIKit.h> 
#import "AppDelegate.h" 

#define S(x) #x 
#define str(x) case x: return @S(x) 

static NSString * devO(UIDeviceOrientation o) { 
    switch (o) { 
      str(UIDeviceOrientationUnknown) ; 
      str(UIDeviceOrientationPortrait) ; 
      str(UIDeviceOrientationPortraitUpsideDown) ; 
      str(UIDeviceOrientationLandscapeLeft) ; 
      str(UIDeviceOrientationLandscapeRight) ; 
      str(UIDeviceOrientationFaceUp) ; 
      str(UIDeviceOrientationFaceDown) ; 

     default: 
      return [NSString stringWithFormat:@"??? UIDeviceOrientation<%08.8x> ???", o] ; 
    } 
} 

static NSString * intfO(UIInterfaceOrientation o) { 
    switch (o) { 
      str(UIInterfaceOrientationPortrait) ; 
      str(UIInterfaceOrientationPortraitUpsideDown) ; 
      str(UIInterfaceOrientationLandscapeLeft) ; 
      str(UIInterfaceOrientationLandscapeRight) ; 

     default: 
      return [NSString stringWithFormat:@"??? UIInterfaceOrientation<%08.8x> ???", o] ; 
    } 
} 

static void (^notifHandler)(NSNotification *) = ^(NSNotification *note) { 
    UIDeviceOrientation orientO = [UIDevice currentDevice].orientation ; 
    UIInterfaceOrientation orientI = [[UIApplication sharedApplication] statusBarOrientation]; 
    ::NSLog(@"! NOTE ! [device:%@--app:%@]\n--- %@ -> [%@] %@" 
      , devO(orientO) 
      , intfO(orientI) 
      , note.name 
      , note.object 
      , note.userInfo) ; 
} ; 

int main(int argc, char *argv[]) { 
    @autoreleasepool { 
     [[UIDevice currentDevice] beginGeneratingDeviceOrientationNotifications] ; 

     [[NSNotificationCenter defaultCenter] addObserverForName: nil 
                  object: nil 
                  queue: nil 
                 usingBlock: notifHandler] ; 

     return UIApplicationMain(argc, argv, nil, ::NSStringFromClass([AppDelegate class])); 
    } 
} 

而這裏的日誌：

2013-04-26 17:43:06.429 AutoRotate[82160:1a03] ! NOTE !  [device:UIDeviceOrientationUnknown--app:??? UIInterfaceOrientation<00000000> ???] 
--- kBKSDisplayServerDiedNotification -> [(null)] (null) 
2013-04-26 17:43:06.489 AutoRotate[82160:2b03] ! NOTE !  [device:UIDeviceOrientationUnknown--app:??? UIInterfaceOrientation<00000000> ???] 
--- NSWillBecomeMultiThreadedNotification -> [(null)] (null) 
2013-04-26 17:43:06.523 AutoRotate[82160:c07] ! NOTE !  [device:UIDeviceOrientationUnknown--app:??? UIInterfaceOrientation<00000000> ???] 
--- _UIWindowDidCreateWindowContextNotification -> [<UIStatusBarWindow: 0x9667540; frame = (0 0; 320 480); layer = <UIWindowLayer: 0x96674a0>>] { 
    "_UIWindowContextIDKey" = "-1367435195"; 
} 
[...] 
2013-04-26 17:43:06.659 AutoRotate[82160:1a03] ! NOTE !  [device:UIDeviceOrientationPortrait--app:UIInterfaceOrientationPortrait] 
--- kBKSHIDServerDiedNotification -> [(null)] (null) 
2013-04-26 17:43:06.662 AutoRotate[82160:c07] ! NOTE !  [device:UIDeviceOrientationPortrait--app:UIInterfaceOrientationPortrait] 
--- UIApplicationDidEndResumeAnimationNotification -> [<UIApplication: 0x7580b80>] (null) 
2013-04-26 17:43:06.663 AutoRotate[82160:c07] ! NOTE !  [device:UIDeviceOrientationUnknown--app:UIInterfaceOrientationPortrait] 
--- UIDeviceOrientationDidChangeNotification -> [<UIDevice: 0x7577d30>] { 
    UIDeviceOrientationRotateAnimatedUserInfoKey = 1; 
} 

通知的最後一行？

正如你可以看到一個旋轉的通知確實發送...但有沒有影響？ 什麼給？

困惑！

Answer 1

嘗試一個真實的設備，而不是模擬器。