UIControl

一、简介

<<UIControl是UIView的子类，当然也是UIResponder的子类。UIControl是诸如UIButton，UISwitch，UItextField等控件的父类，它本身包含了一些属性和方法，但是不能直接使用UIControl类，他只是定义了子类都需要使用的方法

<<继承关系：UIControl-->UIView-->UIResponder-->NSObject

格式为

1-->初始化（作用）

typedef NS_OPTIONS(NSUInteger, UIDataDetectorTypes) {

UIDataDetectorTypePhoneNumber = 1 << 0, //检测电话

UIDataDetectorTypeLink = 1 << 1, //检测网址和邮箱

UIDataDetectorTypeAddress NS_ENUM_AVAILABLE_IOS(4_0) = 1 << 2, // 检测地址

UIDataDetectorTypeCalendarEvent NS_ENUM_AVAILABLE_IOS(4_0) = 1 << 3, // 检测日历

UIDataDetectorTypeShipmentTrackingNumber NS_ENUM_AVAILABLE_IOS(10_0) = 1 << 4, // 货物追踪号码检测

UIDataDetectorTypeFlightNumber NS_ENUM_AVAILABLE_IOS(10_0) = 1 << 5, // 班机号码检测

UIDataDetectorTypeLookupSuggestion NS_ENUM_AVAILABLE_IOS(10_0) = 1 << 6, //用户可能要查找的信息

UIDataDetectorTypeNone = 0, // 禁用检测

UIDataDetectorTypeAll = NSUIntegerMax // 检测所有类型链接

} __TVOS_PROHIBITED;

;（如果属性有枚举类型的话，这里会有枚举类型说明）

@property (nonatomic) UIDataDetectorTypes dataDetectorTypes NS_AVAILABLE_IOS(3_0);// 设置提示文字（这是说明）

二、UIControl的文本属性(属性的顺序与苹果API一致)

1-->控制控件触摸事件

@property(nonatomic,getter=isEnabled) BOOL enabled; // 默认是 YES，要禁用控件，可以将enabled属性设置为NO，这将导致控件忽略任何触摸事件。被禁用后，控件还可以用不同的方式显示自己，比如变成灰色不可用

2-->设置该UIControl 控件是否被选中

@property(nonatomic,getter=isSelected) BOOL selected; //默认是 NO

3-->设置控件的高亮状态

@property(nonatomic,getter=isHighlighted) BOOL highlighted; // 默认是NO. 当触摸进入/退出时，它会自动被设置/清除。

4-->设置控件在垂直方向上如何布置自身的内容

typedef NS_ENUM(NSInteger, UIControlContentVerticalAlignment) {

UIControlContentVerticalAlignmentCenter =0, // 居中对齐

UIControlContentVerticalAlignmentTop =1, // 顶端对齐

UIControlContentVerticalAlignmentBottom =2, // 底端对齐

UIControlContentVerticalAlignmentFill =3, // 填满整个控件

};

@property(nonatomic) UIControlContentVerticalAlignment contentVerticalAlignment; //默认为 UIControlContentVerticalAlignmentCenter 居中

5-->设置控件在水平方向上如何布置自身的内容

typedef NS_ENUM(NSInteger, UIControlContentHorizontalAlignment) {

UIControlContentHorizontalAlignmentCenter =0, // 居中对齐

UIControlContentHorizontalAlignmentLeft =1, // 左端对齐

UIControlContentHorizontalAlignmentRight =2, // 右端对齐

UIControlContentHorizontalAlignmentFill =3, // 填满整个控件

};

@property(nonatomic) UIControlContentHorizontalAlignment contentHorizontalAlignment; //默认为 UIControlContentHorizontalAlignmentCenter居中

6-->当前webview加载内容位置的url请求

NSURLRequest* request =webView.request;

@property (nullable, nonatomic, readonly, strong) NSURLRequest *request;

7-->effectiveContentHorizontalAlignment

@property(nonatomic, readonly) UIControlContentHorizontalAlignment effectiveContentHorizontalAlignment;

8-->获取控件的状态

typedef NS_OPTIONS(NSUInteger, UIControlState) {

UIControlStateNormal =0, // 普通状态

UIControlStateHighlighted =1 << 0, // 高亮状态

UIControlStateDisabled =1 << 1, // 选中状态

UIControlStateSelected =1 << 2, // 禁用状态

UIControlStateFocused NS_ENUM_AVAILABLE_IOS(9_0) = 1 << 3, // 聚焦状态

UIControlStateApplication =0x00FF0000, // 当用作应用标志时

UIControlStateReserved =0xFF000000 // 内部框架预留，无意义

};

@property(nonatomic,readonly) UIControlState state; // could be more than one state (e.g. disabled|selected). synthesized from other flags.

9-->获取用户是否触及视图内容

@property(nonatomic,readonly,getter=isTracking) BOOL tracking;

10-->判断当前触摸点是否在控件区域类

@property(nonatomic,readonly,getter=isTouchInside) BOOL touchInside; // valid during tracking only

11-->用户开始触碰时激发

- (BOOL)beginTrackingWithTouch:(UITouch *)touch withEvent:(nullable UIEvent *)event;

12-->用户连续触碰时激发

- (BOOL)continueTrackingWithTouch:(UITouch *)touch withEvent:(nullable UIEvent *)event;

13-->用户结束触碰时激发

- (void)endTrackingWithTouch:(nullable UITouch *)touch withEvent:(nullable UIEvent *)event; // touch is sometimes nil if cancelTracking calls through to this

14-->监测到取消触摸事件

- (void)cancelTrackingWithEvent:(nullable UIEvent *)event; // event may be nil if cancelled for non-event reasons, e.g. removed from window

15-->添加目标-动作对为不同的事件类型

typedef NS_OPTIONS(NSUInteger, UIControlEvents) {

UIControlEventTouchDown =1 << 0, // 单点触摸事件，用户触摸屏幕时

UIControlEventTouchDownRepeat =1 << 1, // 多点触摸事件，用于第二、第三根手指触摸时

UIControlEventTouchDragInside =1 << 2, // 触摸在控件窗口内拖动时

UIControlEventTouchDragOutside =1 << 3, // 触摸在控件窗口外拖动时

UIControlEventTouchDragEnter =1 << 4, // 触摸在窗口之外拖动到窗口内部时

UIControlEventTouchDragExit =1 << 5, // 触摸在窗口之内拖动到窗口外部时

UIControlEventTouchUpInside =1 << 6, // 在控件之内的触摸抬起时

UIControlEventTouchUpOutside =1 << 7, // 在控件之外的触摸抬起时

UIControlEventTouchCancel =1 << 8, // 触摸事件取消（例如正在触摸时有电话打进来）

UIControlEventValueChanged =1 << 12, // 当控件的值在发生改变时，用于滑块、分段控件、以及娶她取值控件

UIControlEventPrimaryActionTriggered NS_ENUM_AVAILABLE_IOS(9_0) = 1 << 13, // semantic action: for buttons, etc.

UIControlEventEditingDidBegin =1 << 16, // 当文本控件开始编辑时，用于 UITextField

UIControlEventEditingChanged =1 << 17, // 当文本控件的文本被改变时，用于 UITextField

UIControlEventEditingDidEnd =1 << 18, // 当文本控件结束编辑时，用于 UITextField

UIControlEventEditingDidEndOnExit =1 << 19, // 当文本控件内通过按下回车键结束编辑时

UIControlEventAllTouchEvents =0x00000FFF, // 通知所有关于触摸的事件

UIControlEventAllEditingEvents =0x000F0000, // 通知所有关于文本编辑的事件

UIControlEventApplicationReserved =0x0F000000, // range available for application use

UIControlEventSystemReserved =0xF0000000, // range reserved for internal framework use

UIControlEventAllEvents =0xFFFFFFFF // 通知所有事件

};

- (void)addTarget:(nullable id)target action:(SEL)action forControlEvents:(UIControlEvents)controlEvents;

16-->删除目标-动作对为不同的状态

- (void)removeTarget:(nullable id)target action:(nullable SEL)action forControlEvents:(UIControlEvents)controlEvents;

17-->）获取所有的目标集合

@property(nonatomic,readonly) NSSet *allTargets;

18-->获取所有的事件类型

@property(nonatomic,readonly) UIControlEvents allControlEvents; // list of all events that have at least one action

19-->获取某个target对象及事件相关的所有action

- (nullable NSArray *)actionsForTarget:(nullable id)target forControlEvent:(UIControlEvents)controlEvent; // single event. returns NSArray of NSString selector names. returns nil if none

20-->传递事件消息，是监听到事件后最先调用的方法，并且它是随着事件的重复产生而频繁调用的

- (void)sendAction:(SEL)action to:(nullable id)target forEvent:(nullable UIEvent *)event;

21-->发送相应通知，通过控件的代码可以指定时间目标，这个通知将被传播到这些指定的目标

- (void)sendActionsForControlEvents:(UIControlEvents)controlEvents; // send all actions associated with events

UIControl

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