第十篇 － UIImageView

初始化

UIImageView *imgView = [[UIImageView alloc] init];

// 带有默认size，size ＝ 图片的大小

UIImageView *imgView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"001"]];

 

 

  @class UIImage;

//

//NS_CLASS_AVAILABLE_IOS(2_0) @interface UIImageView : UIView

//

  - (instancetype)initWithImage:(nullable UIImage *)image;

  - (instancetype)initWithImage:(nullable UIImage *)image highlightedImage:(nullable UIImage *)highlightedImage NS_AVAILABLE_IOS(3_0);

//

  @property (nullable, nonatomic, strong) UIImage *image; // default is nil

  @property (nullable, nonatomic, strong) UIImage *highlightedImage NS_AVAILABLE_IOS(3_0); // default is nil

  @property (nonatomic, getter=isUserInteractionEnabled) BOOL userInteractionEnabled; // default is NO

//

  @property (nonatomic, getter=isHighlighted) BOOL highlighted NS_AVAILABLE_IOS(3_0); // default is NO

//

//// these allow a set of images to be animated. the array may contain multiple copies of the same

//

 

  @property (nullable, nonatomic, copy) NSArray<UIImage *> *animationImages; // The array must contain UIImages. Setting hides the single image. default is nil

  @property (nullable, nonatomic, copy) NSArray<UIImage *> *highlightedAnimationImages NS_AVAILABLE_IOS(3_0); // The array must contain UIImages. Setting hides the single image. default is nil

//

  @property (nonatomic) NSTimeInterval animationDuration;         // for one cycle of images. default is number of images * 1/30th of a second (i.e. 30 fps)

  @property (nonatomic) NSInteger      animationRepeatCount;      // 0 means infinite (default is 0)

//

//// When tintColor is non-nil, any template images set on the image view will be colorized with that color.

//// The tintColor is inherited through the superview hierarchy. See UIView for more information.

  @property (null_resettable, nonatomic, strong) UIColor *tintColor NS_AVAILABLE_IOS(7_0);

    UIImage *img2 = [UIImage imageNamed:@"iconfont-xingxing (2)"];

    

    imgView.tintColor = [UIColor redColor];

    img2 = [img2 imageWithRenderingMode:UIImageRenderingModeAlwaysTemplate];

    imgView.image = img2;

黑色为原图片颜色，红色为tintColor的颜色。

 

//

  - (void)startAnimating;

  - (void)stopAnimating;

  - (BOOL)isAnimating;

//

//// if YES, the UIImageView will display a focused appearance when any of its immediate or distant superviews become focused

  @property (nonatomic) BOOL adjustsImageWhenAncestorFocused UIKIT_AVAILABLE_TVOS_ONLY(9_0);

//

//// if adjustsImageWhenAncestorFocused is set, the image view may display its image in a larger frame when focused.

//// this layout guide can be used to align other elements with the image view's focused frame.

  @property(readonly,strong) UILayoutGuide *focusedFrameGuide UIKIT_AVAILABLE_TVOS_ONLY(9_0);

//

  @end