Device Orientation

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Overview

For dealing with device orientations.

Examples

Use NIIsSupportedOrientation to Enable Autorotation

  - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation {
    return NIIsSupportedOrientation(toInterfaceOrientation);
  }

Functions
BOOL	NIIsSupportedOrientation (UIInterfaceOrientation orientation)
UIInterfaceOrientation	NIInterfaceOrientation (void)
CGAffineTransform	NIRotateTransformForOrientation (UIInterfaceOrientation orientation)

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Function Documentation

BOOL NIIsSupportedOrientation

(

UIInterfaceOrientation

orientation

)

For use in shouldAutorotateToInterfaceOrientation:

On iPhone/iPod touch:

Returns YES if the orientation is portrait, landscape left, or landscape right. This helps to ignore upside down and flat orientations.

On iPad:

Always returns YES.

Definition at line 28 of file NIDeviceOrientation.m.

UIInterfaceOrientation NIInterfaceOrientation

(

void

)

Returns the application's current interface orientation.

This is simply a convenience method for [UIApplication sharedApplication].statusBarOrientation.

Returns:

The current interface orientation.

Definition at line 46 of file NIDeviceOrientation.m.

CGAffineTransform NIRotateTransformForOrientation

(

UIInterfaceOrientation

orientation

)

Creates an affine transform for the given device orientation.

This is useful for creating a transformation matrix for a view that has been added directly to the window and doesn't automatically have its transformation modified.

Definition at line 61 of file NIDeviceOrientation.m.