【问题标题】:How to set autorotate in portrait mode in cocos2d?如何在 cocos2d 中设置纵向模式下的自动旋转?
【发布时间】:2011-12-31 02:52:49
【问题描述】:

当您查看下面的内容时,在横向模式下可以自动旋转。

那么如何在竖屏模式下自动旋转呢?

如何设置?

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {

    //
    // There are 2 ways to support auto-rotation:
    //  - The OpenGL / cocos2d way
    //     - Faster, but doesn't rotate the UIKit objects
    //  - The ViewController way
    //    - A bit slower, but the UiKit objects are placed in the right place
    //

#if GAME_AUTOROTATION==kGameAutorotationNone
    //
    // EAGLView won't be autorotated.
    // Since this method should return YES in at least 1 orientation, 
    // we return YES only in the Portrait orientation
    //
    return ( interfaceOrientation == UIInterfaceOrientationPortrait );

#elif GAME_AUTOROTATION==kGameAutorotationCCDirector
    //
    // EAGLView will be rotated by cocos2d
    //
    // Sample: Autorotate only in landscape mode
    //
    if( interfaceOrientation == UIInterfaceOrientationLandscapeLeft ) {
        [[CCDirector sharedDirector] setDeviceOrientation: kCCDeviceOrientationLandscapeRight];
    } else if( interfaceOrientation == UIInterfaceOrientationLandscapeRight) {
        [[CCDirector sharedDirector] setDeviceOrientation: kCCDeviceOrientationLandscapeLeft];
    }

    // Since this method should return YES in at least 1 orientation, 
    // we return YES only in the Portrait orientation
    return ( interfaceOrientation == UIInterfaceOrientationPortrait );

#elif GAME_AUTOROTATION == kGameAutorotationUIViewController
    //
    // EAGLView will be rotated by the UIViewController
    //
    // Sample: Autorotate only in landscpe mode
    //
    // return YES for the supported orientations

    return ( UIInterfaceOrientationIsLandscape( interfaceOrientation ) );

#else
#error Unknown value in GAME_AUTOROTATION

#endif // GAME_AUTOROTATION


    // Shold not happen
    return NO;
}

【问题讨论】:

    标签: cocos2d-iphone


    【解决方案1】:

    如果将 shouldAutorotateToInterfaceOrientation 更改为 only:

    return ( interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown)
    

    它会在所有方向旋转,除了纵向倒置。

    【讨论】:

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