iOS开发UIResponder简介API
#import <Foundation/Foundation.h> #import <UIKit/UIKitDefines.h> #import <UIKit/UIEvent.h> #import <UIKit/UIPasteConfigurationSupporting.h>NS_ASSUME_NONNULL_BEGIN@class UIPress; @class UIPressesEvent; //响应者类的按键命令类类目 @protocol UIResponderStandardEditActions <NSObject> @optional - (void)cut:(nullable id)sender NS_AVAILABLE_IOS(3_0);//剪切 - (void)copy:(nullable id)sender NS_AVAILABLE_IOS(3_0);//复制 - (void)paste:(nullable id)sender NS_AVAILABLE_IOS(3_0);//粘贴 - (void)select:(nullable id)sender NS_AVAILABLE_IOS(3_0);//选择 - (void)selectAll:(nullable id)sender NS_AVAILABLE_IOS(3_0);//选择全部 - (void)delete:(nullable id)sender NS_AVAILABLE_IOS(3_2);//删除 - (void)makeTextWritingDirectionLeftToRight:(nullable id)sender NS_AVAILABLE_IOS(5_0);//从左到右写入字符串 - (void)makeTextWritingDirectionRightToLeft:(nullable id)sender NS_AVAILABLE_IOS(5_0);//从右到左写入字符串 - (void)toggleBoldface:(nullable id)sender NS_AVAILABLE_IOS(6_0);//切换字体为黑体 - (void)toggleItalics:(nullable id)sender NS_AVAILABLE_IOS(6_0);//切换字体为斜体 - (void)toggleUnderline:(nullable id)sender NS_AVAILABLE_IOS(6_0);//为字体加入下划线- (void)increaseSize:(nullable id)sender NS_AVAILABLE_IOS(7_0);//增加字体大小 - (void)decreaseSize:(nullable id)sender NS_AVAILABLE_IOS(7_0);//减小字体大小@endNS_CLASS_AVAILABLE_IOS(2_0) @interface UIResponder : NSObject <UIResponderStandardEditActions> //响应链中负责传递事件的方法 #if UIKIT_DEFINE_AS_PROPERTIES @property(nonatomic, readonly, nullable) UIResponder *nextResponder; #else - (nullable UIResponder*)nextResponder; #endif//一个响应对象是否可以成为第一响应者,可以用这个进行判断,默认值为NO #if UIKIT_DEFINE_AS_PROPERTIES @property(nonatomic, readonly) BOOL canBecomeFirstResponder; // default is NO #else - (BOOL)canBecomeFirstResponder; // default is NO #endif //设置对象成为第一响应者,成功返回YES;否则返回NO - (BOOL)becomeFirstResponder;//是否可以辞去第一响应者,默认值为YES #if UIKIT_DEFINE_AS_PROPERTIES @property(nonatomic, readonly) BOOL canResignFirstResponder; // default is YES #else - (BOOL)canResignFirstResponder; // default is YES #endif //辞去第一响应者 成功返回YES;否则返回NO - (BOOL)resignFirstResponder;//判定一个响应对象是否是第一响应者 #if UIKIT_DEFINE_AS_PROPERTIES @property(nonatomic, readonly) BOOL isFirstResponder; #else - (BOOL)isFirstResponder; #endif//响应触摸事件 - (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(nullable UIEvent *)event;//手指按下的时候调用 - (void)touchesMoved:(NSSet<UITouch *> *)touches withEvent:(nullable UIEvent *)event;//手指移动的时候调用 - (void)touchesEnded:(NSSet<UITouch *> *)touches withEvent:(nullable UIEvent *)event;//手指抬起的时候调用 - (void)touchesCancelled:(NSSet<UITouch *> *)touches withEvent:(nullable UIEvent *)event;//取消(非正常离开屏幕,意外中断) - (void)touchesEstimatedPropertiesUpdated:(NSSet<UITouch *> *)touches NS_AVAILABLE_IOS(9_1);// Apple Pencil 产生的 touch 事件的部分信息(如 Pencil 的方向等)传递到 iPad 或 iPhone 上会有一定的延时。 //UIKit 的回调方法 touchBegan 是立即产生的,其返回的参数 touch 中包含了 Pencil 产生的额外信息,这个额外信息是有延时的。所以,首次回调时会给出额外信息的预估值,延时获取真实值之后会调用 touchesEstimatedPropertiesUpdated 方法更新额外信息。//物理按钮 深按API,一般用于遥控器 - (void)pressesBegan:(NSSet<UIPress *> *)presses withEvent:(nullable UIPressesEvent *)event NS_AVAILABLE_IOS(9_0);// 开始按压的时候调用 - (void)pressesChanged:(NSSet<UIPress *> *)presses withEvent:(nullable UIPressesEvent *)event NS_AVAILABLE_IOS(9_0);// 按压改变的时候调用 - (void)pressesEnded:(NSSet<UIPress *> *)presses withEvent:(nullable UIPressesEvent *)event NS_AVAILABLE_IOS(9_0);// 按压结束的时候调用 - (void)pressesCancelled:(NSSet<UIPress *> *)presses withEvent:(nullable UIPressesEvent *)event NS_AVAILABLE_IOS(9_0);// 当系统发出取消按压事件的时候调用//响应移动事件 - (void)motionBegan:(UIEventSubtype)motion withEvent:(nullable UIEvent *)event NS_AVAILABLE_IOS(3_0);//移动事件开始 - (void)motionEnded:(UIEventSubtype)motion withEvent:(nullable UIEvent *)event NS_AVAILABLE_IOS(3_0);//移动事件结束 - (void)motionCancelled:(UIEventSubtype)motion withEvent:(nullable UIEvent *)event NS_AVAILABLE_IOS(3_0);//移动事件取消//响应远程控制事件 一般用于耳机 - (void)remoteControlReceivedWithEvent:(nullable UIEvent *)event NS_AVAILABLE_IOS(4_0);//通过这个方法告诉UIMenuController它内部应该显示什么内容,”复制”、”粘贴”等 - (BOOL)canPerformAction:(SEL)action withSender:(nullable id)sender NS_AVAILABLE_IOS(3_0); ////默认的实现是调用canPerformAction:withSender:方法来确定对象是否可以调用action操作。如果我们想要重写目标的选择方式,则应该重写这个方法。 - (nullable id)targetForAction:(SEL)action withSender:(nullable id)sender NS_AVAILABLE_IOS(7_0);//UIResponder提供了一个只读方法来获取响应链中共享的undo管理器,公共的事件撤销管理者 @property(nullable, nonatomic,readonly) NSUndoManager *undoManager NS_AVAILABLE_IOS(3_0);@end//定义一个响应者支持的快捷键 typedef NS_OPTIONS(NSInteger, UIKeyModifierFlags) {UIKeyModifierAlphaShift = 1 << 16,// Alppha+Shift键UIKeyModifierShift = 1 << 17,//Shift键UIKeyModifierControl = 1 << 18,//Control键UIKeyModifierAlternate = 1 << 19,//Alt键UIKeyModifierCommand = 1 << 20,//Command键UIKeyModifierNumericPad = 1 << 21,//Num键 } NS_ENUM_AVAILABLE_IOS(7_0);NS_CLASS_AVAILABLE_IOS(7_0) @interface UIKeyCommand : NSObject <NSCopying, NSSecureCoding>- (instancetype)init NS_DESIGNATED_INITIALIZER; - (nullable instancetype)initWithCoder:(NSCoder *)aDecoder NS_DESIGNATED_INITIALIZER; //输入字符串 @property (nullable,nonatomic,readonly) NSString *input; //按键调节器 @property (nonatomic,readonly) UIKeyModifierFlags modifierFlags; //按指定调节器键输入字符串并设置事件 @property (nullable,nonatomic,copy) NSString *discoverabilityTitle NS_AVAILABLE_IOS(9_0);// The action for UIKeyCommands should accept a single (id)sender, as do the UIResponderStandardEditActions above// Creates an key command that will _not_ be discoverable in the UI. + (UIKeyCommand *)keyCommandWithInput:(NSString *)input modifierFlags:(UIKeyModifierFlags)modifierFlags action:(SEL)action;// Key Commands with a discoverabilityTitle _will_ be discoverable in the UI. + (UIKeyCommand *)keyCommandWithInput:(NSString *)input modifierFlags:(UIKeyModifierFlags)modifierFlags action:(SEL)action discoverabilityTitle:(NSString *)discoverabilityTitle NS_AVAILABLE_IOS(9_0);@end@interface UIResponder (UIResponderKeyCommands) @property (nullable,nonatomic,readonly) NSArray<UIKeyCommand *> *keyCommands NS_AVAILABLE_IOS(7_0); // returns an array of UIKeyCommand objects< @end@class UIInputViewController; @class UITextInputMode; @class UITextInputAssistantItem;@interface UIResponder (UIResponderInputViewAdditions)//键盘输入视图(系统默认的,可以自定义) @property (nullable, nonatomic, readonly, strong) __kindof UIView *inputView NS_AVAILABLE_IOS(3_2); //弹出键盘时附带的视图 @property (nullable, nonatomic, readonly, strong) __kindof UIView *inputAccessoryView NS_AVAILABLE_IOS(3_2);/// This method is for clients that wish to put buttons on the Shortcuts Bar, shown on top of the keyboard. /// You may modify the returned inputAssistantItem to add to or replace the existing items on the bar. /// Modifications made to the returned UITextInputAssistantItem are reflected automatically. /// This method should not be overriden. Goes up the responder chain. @property (nonnull, nonatomic, readonly, strong) UITextInputAssistantItem *inputAssistantItem NS_AVAILABLE_IOS(9_0) __TVOS_PROHIBITED __WATCHOS_PROHIBITED;//键盘输入视图控制器 IOS8以后 @property (nullable, nonatomic, readonly, strong) UIInputViewController *inputViewController NS_AVAILABLE_IOS(8_0); //弹出键盘时附带的视图的视图控制器 IOS8以后 @property (nullable, nonatomic, readonly, strong) UIInputViewController *inputAccessoryViewController NS_AVAILABLE_IOS(8_0);//文本输入模式 @property (nullable, nonatomic, readonly, strong) UITextInputMode *textInputMode NS_AVAILABLE_IOS(7_0); //文本输入模式标识 @property (nullable, nonatomic, readonly, strong) NSString *textInputContextIdentifier NS_AVAILABLE_IOS(7_0); //根据设置的标识清除指定的文本输入模式 + (void)clearTextInputContextIdentifier:(NSString *)identifier NS_AVAILABLE_IOS(7_0);//重新刷新键盘输入视图 - (void)reloadInputViews NS_AVAILABLE_IOS(3_2);@end// 按键输入箭头指向 UIKIT_EXTERN NSString *const UIKeyInputUpArrow NS_AVAILABLE_IOS(7_0); UIKIT_EXTERN NSString *const UIKeyInputDownArrow NS_AVAILABLE_IOS(7_0); UIKIT_EXTERN NSString *const UIKeyInputLeftArrow NS_AVAILABLE_IOS(7_0); UIKIT_EXTERN NSString *const UIKeyInputRightArrow NS_AVAILABLE_IOS(7_0); UIKIT_EXTERN NSString *const UIKeyInputEscape NS_AVAILABLE_IOS(7_0);@interface UIResponder (ActivityContinuation) //用户活动 @property (nullable, nonatomic, strong) NSUserActivity *userActivity NS_AVAILABLE_IOS(8_0); //更新用户活动 - (void)updateUserActivityState:(NSUserActivity *)activity NS_AVAILABLE_IOS(8_0); //恢复用户活动 - (void)restoreUserActivityState:(NSUserActivity *)activity NS_AVAILABLE_IOS(8_0); @end#if TARGET_OS_IOS @interface UIResponder (UIPasteConfigurationSupporting) <UIPasteConfigurationSupporting> @end #endifNS_ASSUME_NONNULL_END
转载于:https://www.cnblogs.com/xianfeng-zhang/p/9466257.html
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