1 // 2 // UIButton1.h 3 // UIKit 4 //http://blog.163.com/fuxiaohui@126/blog/static/131745826201172601821628/ 5 // Copyright (c) 2005-2013, Apple Inc. All rights reserved. 6 // 7 8 #import <Foundation/Foundation.h> 9 #import <UIKit/UIControl.h> 10 #import <UIKit/UIGeometry.h> 11 #import <UIKit/UIStringDrawing.h> 12 #import <UIKit/UIKitDefines.h> 13 14 @class UIImage, UIFont, UIColor, UIImageView, UILabel; 15 16 //button类型 17 typedef NS_ENUM(NSInteger, UIButtonType) { 18 UIButtonTypeCustom = 0, //自定义 // no button type 19 UIButtonTypeSystem NS_ENUM_AVAILABLE_IOS(7_0), // standard system button 20 21 UIButtonTypeDetailDisclosure, 22 UIButtonTypeInfoLight, 23 UIButtonTypeInfoDark, 24 UIButtonTypeContactAdd, 25 26 UIButtonTypeRoundedRect = UIButtonTypeSystem, // Deprecated（已过时）, use UIButtonTypeSystem instead（代替） 27 }; 28 29 NS_CLASS_AVAILABLE_IOS(2_0) @interface UIButton : UIControl <NSCoding> { 30 @private 31 //Edge n. 边缘； inset vt. 嵌入；插入 32 //UIEdgeInsets==>这货其实就是插入间隔区域。正值表示间隔值，负值表示超出参照物的距离。 33 //UIEdgeInsets insets = {top, left, bottom, right}; 默认都为0 34 CFMutableDictionaryRef _contentLookup; 35 UIEdgeInsets _contentEdgeInsets; 36 UIEdgeInsets _titleEdgeInsets; 37 UIEdgeInsets _imageEdgeInsets; 38 UIImageView *_backgroundView; 39 UIImageView *_imageView; 40 UILabel *_titleView; 41 BOOL _initialized; 42 UIControlState _lastDrawingControlState; 43 struct { 44 unsigned int reversesTitleShadowWhenHighlighted:1; 45 unsigned int adjustsImageWhenHighlighted:1; 46 unsigned int adjustsImageWhenDisabled:1; 47 unsigned int autosizeToFit:1; 48 unsigned int disabledDimsImage:1; 49 unsigned int showsTouchWhenHighlighted:1; 50 unsigned int buttonType:8; 51 unsigned int shouldHandleScrollerMouseEvent:1; 52 unsigned int titleFrozen:1; 53 } _buttonFlags; 54 } 55 56 + (id)buttonWithType:(UIButtonType)buttonType; 57 ////默认为UIEdgeInsetsZero 58 @property(nonatomic) UIEdgeInsets contentEdgeInsets UI_APPEARANCE_SELECTOR; // default is UIEdgeInsetsZero 59 @property(nonatomic) UIEdgeInsets titleEdgeInsets; // default is UIEdgeInsetsZero 60 //默认为NO.如果为YES,当按钮的状态进行切换时,文本的影子会反转 61 @property(nonatomic) BOOL reversesTitleShadowWhenHighlighted; // default is NO. if YES, shadow reverses to shift between engrave and emboss appearance 62 @property(nonatomic) UIEdgeInsets imageEdgeInsets; // default is UIEdgeInsetsZero 63 //默认为YES.如果为YES,当按钮状态为高亮时,图像变暗 64 @property(nonatomic) BOOL adjustsImageWhenHighlighted; // default is YES. if YES, image is drawn darker when highlighted(pressed) 65 //默认为YES.如果为YES,当按钮状态为禁用时,图像变暗 66 @property(nonatomic) BOOL adjustsImageWhenDisabled; // default is YES. if YES, image is drawn lighter when disabled 67 //默认为NO.如果为YES, 当按钮状态为高亮时,显示一个简单的反馈(类似于光环) 68 @property(nonatomic) BOOL showsTouchWhenHighlighted; // default is NO. if YES, show a simple feedback (currently a glow) while highlighted 69 @property(nonatomic,retain) UIColor *tintColor NS_AVAILABLE_IOS(5_0); // The tintColor is inherited through the superview hierarchy. See UIView for more information. 70 @property(nonatomic,readonly) UIButtonType buttonType; 71 72 // you can set the image, title color, title shadow color, and background image to use for each state. you can specify data 73 // for a combined state by using the flags added together. in general, you should specify a value for the normal state to be used 74 // by other states which don't have a custom value set 75 76 - (void)setTitle:(NSString *)title forState:(UIControlState)state; // default is nil. title is assumed to be single line 77 - (void)setTitleColor:(UIColor *)color forState:(UIControlState)state UI_APPEARANCE_SELECTOR; // default if nil. use opaque white 78 - (void)setTitleShadowColor:(UIColor *)color forState:(UIControlState)state UI_APPEARANCE_SELECTOR; // default is nil. use 50% black 79 - (void)setImage:(UIImage *)image forState:(UIControlState)state; // default is nil. should be same size if different for different states 80 - (void)setBackgroundImage:(UIImage *)image forState:(UIControlState)state UI_APPEARANCE_SELECTOR; // default is nil 81 - (void)setAttributedTitle:(NSAttributedString *)title forState:(UIControlState)state NS_AVAILABLE_IOS(6_0); // default is nil. title is assumed to be single line 82 83 - (NSString *)titleForState:(UIControlState)state; // these getters only take a single state value 84 - (UIColor *)titleColorForState:(UIControlState)state; 85 - (UIColor *)titleShadowColorForState:(UIControlState)state; 86 - (UIImage *)imageForState:(UIControlState)state; 87 - (UIImage *)backgroundImageForState:(UIControlState)state; 88 - (NSAttributedString *)attributedTitleForState:(UIControlState)state NS_AVAILABLE_IOS(6_0); 89 90 // these are the values that will be used for the current state. you can also use these for overrides. a heuristic will be used to 91 // determine what image to choose based on the explict states set. For example, the 'normal' state value will be used for all states 92 // that don't have their own image defined. 93 94 @property(nonatomic,readonly,retain) NSString *currentTitle; // normal/highlighted/selected/disabled. can return nil 95 @property(nonatomic,readonly,retain) UIColor *currentTitleColor; // normal/highlighted/selected/disabled. always returns non-nil. default is white(1,1) 96 @property(nonatomic,readonly,retain) UIColor *currentTitleShadowColor; // normal/highlighted/selected/disabled. default is white(0,0.5). 97 @property(nonatomic,readonly,retain) UIImage *currentImage; // normal/highlighted/selected/disabled. can return nil 98 @property(nonatomic,readonly,retain) UIImage *currentBackgroundImage; // normal/highlighted/selected/disabled. can return nil 99 @property(nonatomic,readonly,retain) NSAttributedString *currentAttributedTitle NS_AVAILABLE_IOS(6_0); // normal/highlighted/selected/disabled. can return nil 100 101 // return title and image views. will always create them if necessary. always returns nil for system buttons 102 @property(nonatomic,readonly,retain) UILabel *titleLabel NS_AVAILABLE_IOS(3_0); 103 @property(nonatomic,readonly,retain) UIImageView *imageView NS_AVAILABLE_IOS(3_0); 104 105 // these return the rectangle for the background (assumes bounds), the content (image + title) and for the image and title separately. the content rect is calculated based 106 // on the title and image size and padding and then adjusted based on the control content alignment. there are no draw methods since the contents 107 // are rendered in separate subviews (UIImageView, UILabel) 108 109 - (CGRect)backgroundRectForBounds:(CGRect)bounds; 110 - (CGRect)contentRectForBounds:(CGRect)bounds; 111 - (CGRect)titleRectForContentRect:(CGRect)contentRect; 112 - (CGRect)imageRectForContentRect:(CGRect)contentRect; 113 @end 114 115 @interface UIButton(UIButtonDeprecated) 116 117 @property(nonatomic,retain) UIFont *font NS_DEPRECATED_IOS(2_0, 3_0); 118 @property(nonatomic) NSLineBreakMode lineBreakMode NS_DEPRECATED_IOS(2_0, 3_0); 119 @property(nonatomic) CGSize titleShadowOffset NS_DEPRECATED_IOS(2_0, 3_0); 120 121 @end