Question

EIDT：已修复。看起来这是一个模拟器问题。感谢Gabriel

我得到的模拟器只有这个：

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

但在设备上，我确实收到了大量新通知......

--- 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，好吧......

我真的在这个上拉我的头发。我在S.O.上看到了很多相关的问题。但是找不到一个对我有用的东西。

我使用的是最简单的例子，Xcode 4.6.2，New Project，Empty Application。

结果是，如果应用程序在纵向中启动，则它可以旋转到四个支持的方向中的任何一个。

但是，如果它是在横向中启动，它不执行初始旋转，即使在启动后旋转设备确实尊重四种可能的轮换。

请注意，我已经实现了iOS 5和iOS 6所需的所有内容，并且应用适用于所有iOS版本（除外）初始方向到处都失败了。

此外，请注意我只是在“普通香草”情况之后，设备支持所有方向并且应该“开箱即用”（除了它没有！）

#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

我已经尝试过模拟器5.0,5.1,6.0＆amp;的每个变体。 6.1具有完全相同的结果：似乎我没有得到任何轮换信息，或者如果我这样做，那就不值得尊敬了。

所以，我在main中添加了这个：

#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]));
    }
}

这是日志：

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;
}

注意最后一行？

Here's a screen shot

正如您所看到的那样确实发送了轮换通知......但是没有效果？是什么给了什么？

困惑！

Answer 1

尝试使用真实设备而不是模拟器。

iPhone启动方向（再次！）

1 个答案: