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[[Image:AppIcon.png|right|framed|From left to right: The original image; <tt>_applicationIconImagePrecomposed:NO</tt>; <tt>_applicationIconImagePrecomposed:YES</tt>; <tt>_smallApplicationIconImagePrecomposed:NO</tt>; <tt>_smallApplicationIconImagePrecomposed:YES</tt>]] | [[Image:AppIcon.png|right|framed|From left to right: The original image; <tt>_applicationIconImagePrecomposed:NO</tt>; <tt>_applicationIconImagePrecomposed:YES</tt>; <tt>_smallApplicationIconImagePrecomposed:NO</tt>; <tt>_smallApplicationIconImagePrecomposed:YES</tt>]] | ||
{{Function signature|signature=-(UIImage*)_applicationIconImagePrecomposed:(BOOL)precomposed;|firmware=2.0 – | {{Function signature|signature=-(UIImage*)_applicationIconImagePrecomposed:(BOOL)precomposed;|firmware=2.0 –}} | ||
{{Function signature|signature=-(UIImage*)_smallApplicationIconImagePrecomposed:(BOOL)precomposed;|firmware=2.0 – | {{Function signature|signature=-(UIImage*)_smallApplicationIconImagePrecomposed:(BOOL)precomposed;|firmware=2.0 –}} | ||
These methods resize an image to icon size (59×59) or small icon size (29×29), clip out a rounded rectangle, draw shadows and apply a glossy overlay if required (when <tt>precomposed == NO</tt>), so that it resembles an icon. | These methods resize an image to icon size (59×59) or small icon size (29×29), clip out a rounded rectangle, draw shadows and apply a glossy overlay if required (when <tt>precomposed == NO</tt>), so that it resembles an icon. | ||
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=== _flatImageWithWhite:alpha: === | === _flatImageWithWhite:alpha: === | ||
{{Function signature|signature=-(UIImage*)_flatImageWithWhite:(CGFloat)white alpha:(CGFloat)alpha;|firmware=2.0 – | {{Function signature|signature=-(UIImage*)_flatImageWithWhite:(CGFloat)white alpha:(CGFloat)alpha;|firmware=2.0 –}} | ||
Create an image having the same size as the original image, but filled with the solid color as the parameters. | Create an image having the same size as the original image, but filled with the solid color as the parameters. | ||
=== _bezeledImageWithRed:green:blue:alpha: === | === _bezeledImageWithRed:green:blue:alpha: === | ||
{{Function signature|signature=-(UIImage*) _bezeledImageWithRed:(CGFloat)red green:(CGFloat)green blue:(CGFloat)blue alpha:(CGFloat)alpha;|firmware=2.0 – | {{Function signature|signature=-(UIImage*) _bezeledImageWithRed:(CGFloat)red green:(CGFloat)green blue:(CGFloat)blue alpha:(CGFloat)alpha;|firmware=2.0 –}} | ||
Create a solid white image having the same size as the original image, and then stroke the top 1px edge by the specified color. | Create a solid white image having the same size as the original image, and then stroke the top 1px edge by the specified color. | ||
=== _imageScaledToSize:interpolationQuality: & _imageScaledToProportion:interpolationQuality: === | === _imageScaledToSize:interpolationQuality: & _imageScaledToProportion:interpolationQuality: === | ||
{{Function signature|signature=-(UIImage*)_imageScaledToSize:(CGSize)newSize interpolationQuality:(CGInterpolationQuality)quality;|firmware=2.0 – | {{Function signature|signature=-(UIImage*)_imageScaledToSize:(CGSize)newSize interpolationQuality:(CGInterpolationQuality)quality;|firmware=2.0 –}} | ||
{{Function signature|signature=-(UIImage*)_imageScaledToProportion:(CGFloat)scale interpolationQuality:(CGInterpolationQuality)quality;|firmware=2.0 – | {{Function signature|signature=-(UIImage*)_imageScaledToProportion:(CGFloat)scale interpolationQuality:(CGInterpolationQuality)quality;|firmware=2.0 –}} | ||
Rescale the image to the new size. | Rescale the image to the new size. | ||
=== +kitImageNamed: === | === +kitImageNamed: === | ||
{{Function signature|signature=+(UIImage*)kitImageNamed:(NSString*)name;|firmware=2.0 – | {{Function signature|signature=+(UIImage*)kitImageNamed:(NSString*)name;|firmware=2.0 –}} | ||
Equivalent to <tt>_UIImageWithName(name)</tt>. | Equivalent to <tt>_UIImageWithName(name)</tt>. | ||
=== +defaultDesktopImage === | === +defaultDesktopImage === | ||
{{Function signature|signature=+(UIImage*)defaultDesktopImage;|firmware=2.0 – | {{Function signature|signature=+(UIImage*)defaultDesktopImage;|firmware=2.0 –}} | ||
Return the user's lock screen image. | Return the user's lock screen image. | ||
=== +setDesktopImageData: === | === +setDesktopImageData: === | ||
{{Function signature|signature=+(void)setDesktopImageData:(NSData*)jpegData;|firmware=2.0 – | {{Function signature|signature=+(void)setDesktopImageData:(NSData*)jpegData;|firmware=2.0 –}} | ||
Replace the user's lock screen image by the given JPEG data. | Replace the user's lock screen image by the given JPEG data. | ||
Revision as of 09:13, 22 November 2009
UIImage is an Objective-C class that represents a bitmap image.
Undocumented methods
-_applicationIconImagePrecomposed: & -_smallApplicationIconImagePrecomposed:
From left to right: The original image; _applicationIconImagePrecomposed:NO; _applicationIconImagePrecomposed:YES; _smallApplicationIconImagePrecomposed:NO; _smallApplicationIconImagePrecomposed:YES
| Signature | -(UIImage*)_applicationIconImagePrecomposed:(BOOL)precomposed; |
|---|---|
| Available in | 2.0 – |
| Signature | -(UIImage*)_smallApplicationIconImagePrecomposed:(BOOL)precomposed; |
|---|---|
| Available in | 2.0 – |
These methods resize an image to icon size (59×59) or small icon size (29×29), clip out a rounded rectangle, draw shadows and apply a glossy overlay if required (when precomposed == NO), so that it resembles an icon.
If the input image is rectangular, the largest square portion in the top-left corner will be used.
_flatImageWithWhite:alpha:
| Signature | -(UIImage*)_flatImageWithWhite:(CGFloat)white alpha:(CGFloat)alpha; |
|---|---|
| Available in | 2.0 – |
Create an image having the same size as the original image, but filled with the solid color as the parameters.
_bezeledImageWithRed:green:blue:alpha:
| Signature | -(UIImage*) _bezeledImageWithRed:(CGFloat)red green:(CGFloat)green blue:(CGFloat)blue alpha:(CGFloat)alpha; |
|---|---|
| Available in | 2.0 – |
Create a solid white image having the same size as the original image, and then stroke the top 1px edge by the specified color.
_imageScaledToSize:interpolationQuality: & _imageScaledToProportion:interpolationQuality:
| Signature | -(UIImage*)_imageScaledToSize:(CGSize)newSize interpolationQuality:(CGInterpolationQuality)quality; |
|---|---|
| Available in | 2.0 – |
| Signature | -(UIImage*)_imageScaledToProportion:(CGFloat)scale interpolationQuality:(CGInterpolationQuality)quality; |
|---|---|
| Available in | 2.0 – |
Rescale the image to the new size.
+kitImageNamed:
| Signature | +(UIImage*)kitImageNamed:(NSString*)name; |
|---|---|
| Available in | 2.0 – |
Equivalent to _UIImageWithName(name).
+defaultDesktopImage
| Signature | +(UIImage*)defaultDesktopImage; |
|---|---|
| Available in | 2.0 – |
Return the user's lock screen image.
+setDesktopImageData:
| Signature | +(void)setDesktopImageData:(NSData*)jpegData; |
|---|---|
| Available in | 2.0 – |
Replace the user's lock screen image by the given JPEG data.
Undocumented C functions
_UIImageWithName
| Signature | UIImage* _UIImageWithName(NSString* name); |
|---|---|
| Available in | 2.0 – 3.1 |
Obtain a built-in image. The name are stored in UIKit.framework/*.artwork. There are various ways to extract this information[1][2][3], and you can grab a (slightly outdated) list from http://test.saurik.com/winterboard/UIImages.txt.
UIImageDataWriteToSavedPhotosAlbum
| Signature | void UIImageDataWriteToSavedPhotosAlbum(NSData* imageData, id target, SEL selector, void* context); |
|---|---|
| Available in | 3.1 |
Write the image data to photos album. This is similar to UIImageWriteToSavedPhotosAlbum function in the SDK, except that you can choose the image format (the extension will always be *.jpg, however).
References
- ↑ iPhoneShop http://code.google.com/p/iphoneshop/ – may not work on 3.x
- ↑ http://svn.saurik.com/repos/menes/trunk/winterboard/UIImages.mm
- ↑ http://code.google.com/p/networkpx/source/browse/etc/dump-artwork.m – Tested only on 3.x
- Official documentation: http://developer.apple.com/iphone/library/documentation/uikit/reference/UIImage_Class/Reference/Reference.html
- Extra header: http://github.com/kennytm/iphone-private-frameworks/blob/master/UIKit/UIImage2.h