UISegmentedControl的用法

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UISegmentedControl使用方法

初始化的方法

 //一次性初始化多个control，items可以是图片或者是文字array，系统会自动控制每个单元的大小 //也可通过正常View的初始化进行 - (instancetype)initWithItems:(NSArray *)items;

事件添加

 //通过UIControl的方法来设置，当改变segments的时候通过事件UIControlEventValueChanged， //通过action来处理事件 [self.mySegmentedControl addTarget:self                     action:@selector(myAction:)           forControlEvents:UIControlEventValueChanged];

Segmented Controls的内容设置

 //通过索引设置以及获取Title和Image           - (void)setTitle:(NSString *)title forSegmentAtIndex:(NSUInteger)segment; - (NSString *)titleForSegmentAtIndex:(NSUInteger)segment; - (void)setImage:(UIImage *)image forSegmentAtIndex:(NSUInteger)segment; - (UIImage *)imageForSegmentAtIndex:(NSUInteger)segment;

Segmented Controls Segments的设置

 //在索引点插入一个新的标题的segment - (void)insertSegmentWithTitle:(NSString *)title atIndex:(NSUInteger)segment animated:(BOOL)animated; //在索引点插入一个新的图片的segment - (void)insertSegmentWithImage:(UIImage *)image  atIndex:(NSUInteger)segment animated:(BOOL)animated; - (void)removeSegmentAtIndex:(NSUInteger)segment animated:(BOOL)animated; - (void)removeAllSegmens; //Segment的数量 @property(nonatomic,readonly) NSUInteger numberOfSegments;   //被选中的索引 @property(nonatomic) NSInteger selectedSegmentIndex;

Segmented Controls显示和行为设置

 //默认值为NO，即点击后保持选中状态，如果设置为YES则，只是短暂的显示选中状态 @property(nonatomic,getter=isMomentary) BOOL momentary; //通过索引调整每个segment的width，如果设置为0.0则表示自动调整大小，默认为0.0 - (void)setWidth:(CGFloat)width forSegmentAtIndex:(NSUInteger)segment; - (CGFloat)widthForSegmentAtIndex:(NSUInteger)segment; //通过索引调整文字或者图片在segment的offset，默认为（0,0） - (void)setContentOffset:(CGSize)offset forSegmentAtIndex:(NSUInteger)segment; - (CGSize)contentOffsetForSegmentAtIndex:(NSUInteger)segment; //设置segment是否能选中 - (void)setEnabled:(BOOL)enabled forSegmentAtIndex:(NSUInteger)segment;        - (BOOL)isEnabledForSegmentAtIndex:(NSUInteger)segment; //是否根据内容的大小自动调整宽度 @property(nonatomic) BOOL apportionsSegmentWidthsByContent NS_AVAILABLE_IOS(5_0);

自定义的外观

 //设置UISegmentedControl的边框，分隔线，文字，点击后的颜色 @property(nonatomic,retain) UIColor *tintColor; //获取和设置背景图片，通过UIControlState和barMetrics的进行设置和获取，主要需要先设置 //UIControlStateNormal才会有效果 - (UIImage *)backgroundImageForState:(UIControlState)state barMetrics:(UIBarMetrics)barMetrics - (void)setBackgroundImage:(UIImage *)backgroundImage forState:(UIControlState)state barMetrics:(UIBarMetrics)barMetrics //设置分割线的图片样式，首先需要设置UIControlStateNormal不管左边还是右边， //设置完成后再调用设置方法，根据UIControlState显示分割线 - (void)setDividerImage:(UIImage *)dividerImage forLeftSegmentState:(UIControlState)leftState rightSegmentState:(UIControlState)rightState barMetrics:(UIBarMetrics)barMetrics - (UIImage *)dividerImageForLeftSegmentState:(UIControlState)leftState rightSegmentState:(UIControlState)rightState barMetrics:(UIBarMetrics)barMetric        //设置Title的样式，包括 font, text color,  shadow。通过NSAttributedString.h里面的键值对 - (void)setTitleTextAttributes:(NSDictionary *)attributes forState:(UIControlState)state NS_AVAILABLE_IOS(5_0) UI_APPEARANCE_SELECTOR; - (NSDictionary *)titleTextAttributesForState:(UIControlState)state NS_AVAILABLE_IOS(5_0) UI_APPEARANCE_SELECTOR; //调整title和image的位置，通过给定的segment  - (void)setContentPositionAdjustment:(UIOffset)adjustment forSegmentType:(UISegmentedControlSegment)leftCenterRightOrAlone barMetrics:(UIBarMetrics)barMetrics NS_AVAILABLE_IOS(5_0) UI_APPEARANCE_SELECTOR;  - (UIOffset)contentPositionAdjustmentForSegmentType:(UISegmentedControlSegment)leftCent

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