UIImage(DTFoundation) Category Reference
| Declared in | UIImage+DTFoundation.h |
Class Methods
imageWithContentsOfURL:cachePolicy:error:
Creates and returns an image object synchronously by loading the image data from the specified URL and optionally caching it.
+ (UIImage *)imageWithContentsOfURL:(NSURL *)URL cachePolicy:(NSURLRequestCachePolicy)cachePolicy error:(NSError **)errorParameters
- URL
The URL to load the image from
- cachePolicy
The cache policy to apply.
- error
An optional output parameter to return an error if the loading fails
Return Value
The image object for the specified URL, or nil if the method could not load the specified image.
Discussion
Useful values for cachePolicy are:
- NSURLRequestUseProtocolCachePolicy (default)
- NSURLRequestReloadIgnoringLocalCacheData
- NSURLRequestReturnCacheDataElseLoad
- NSURLRequestReturnCacheDataDontLoad
Declared In
UIImage+DTFoundation.himageWithSolidColor:size:
Creates an image filled with a solid color
+ (UIImage *)imageWithSolidColor:(UIColor *)color size:(CGSize)sizeParameters
- color
The solid color that fills the image
- size
The size of the image
Return Value
The image filled with given color and given size
Declared In
UIImage+DTFoundation.hInstance Methods
drawInRect:withContentMode:
Mimicks the way images are drawn differently by UIImageView based on the set content mode.
- (void)drawInRect:(CGRect)rect withContentMode:(UIViewContentMode)contentModeParameters
- rect
The rectangle to drawn in
- contentMode
The content mode. Note that UIViewContentModeRedraw is treated the same as UIViewContentModeScaleToFill.
Declared In
UIImage+DTFoundation.himageMaskedAndTintedWithColor:
Creates an image filled with a tint color using the receiver as image mask. The resulting image ignores the receiver’s color values and instead uses the alpha values combined with the passed color.
- (UIImage *)imageMaskedAndTintedWithColor:(UIColor *)colorParameters
- color
The color to use for tinting
Return Value
A new image
Declared In
UIImage+DTFoundation.himageScaledToSize:
Resizes the receiver to the given size.
- (UIImage *)imageScaledToSize:(CGSize)newSizeParameters
- newSize
The target image size
Return Value
The resulting image
Declared In
UIImage+DTFoundation.htileImageAtColumn:ofColumns:row:ofRows:
Cuts out a tile at the given row and column
- (UIImage *)tileImageAtColumn:(NSUInteger)column ofColumns:(NSUInteger)columns row:(NSUInteger)row ofRows:(NSUInteger)rowsParameters
- column
The index of the column
- columns
The total number of columns
- row
The index of the row
- rows
The total number of rows
Return Value
The resulting image
Declared In
UIImage+DTFoundation.htileImageInClipRect:inBounds:scale:
Cuts out a tile at the given clip rect relative to the bounds
- (UIImage *)tileImageInClipRect:(CGRect)clipRect inBounds:(CGRect)bounds scale:(CGFloat)scaleParameters
- clipRect
The clipping rect to extract
- bounds
The bounds to which the clipRect is relative to
- scale
The image scale
Return Value
The resulting image
Declared In
UIImage+DTFoundation.h