iOS——UIControl
来源:互联网 发布:诺手勇敢的心淘宝价钱 编辑:程序博客网 时间:2024/06/04 01:08
一、概述
1. UIControl 对象
2. UIControl 属性
@property(nonatomic,getter=isEnabled)BOOL enabled;
2)当用户选择控件时,该属性会变为 YES;默认为 NO,子类通常可以通过设置该属性来选中子类控件
@property(nonatomic,getter=isSelected)BOOL selected;
3)设置控件的高亮状态;默认为 NO
@property(nonatomic,getter=isHighlighted)BOOL highlighted;
4)设置控件在垂直方向上如何布置自身的内容;默认为 UIControlContentVerticalAlignmentCenter 居中
@property(nonatomic)UIControlContentVerticalAlignment contentVerticalAlignment;
UIControlContentVerticalAlignmentCenter 枚举如下 :
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)UIControlContentHorizontalAlignment contentHorizontalAlignment;
UIControlContentHorizontalAlignmentCenter枚举如下 :
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};
6)获取控件的状态
@property(nonatomic,readonly)UIControlState state;
UIControlState枚举如下 :
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};
7)添加 目标-动作对为不同的事件类型
- (void)addTarget:(nullableid)target action:(SEL)action forControlEvents:(UIControlEvents)controlEvents;
UIControlEvent 枚举如下 :
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)removeTarget:(nullableid)target action:(nullableSEL)action forControlEvents:(UIControlEvents)controlEvents;
@property(nonatomic,readonly)NSSet *allTargets;
10)获取所有的事件类型
@property(nonatomic,readonly)UIControlEvents allControlEvents;
- iOS——UIControl
- UIControl IOS控件编程—IOS开发
- UIControl IOS控件编程—IOS开发
- UIControl IOS控件编程—IOS开发
- UIControl IOS控件编程—IOS开发
- UIControl IOS控件编程—IOS开发
- UIControl IOS控件编程—IOS开发
- UIControl IOS控件编程—IOS开发
- UIControl IOS控件编程—IOS开发
- UIControl IOS控件编程—IOS开发
- iOS系列UI篇——UIControl
- IOS学习笔记10—UIControl对象详解
- IOS学习笔记10—UIControl对象详解
- iOS-UIControl
- iOS UIControl
- 【IOS 开发学习总结-OC-42】★ios开发——UI控件之UIControl基类
- UIControl IOS控件编程
- UIControl IOS控件编程
- kafka中文教程
- Supervised Descent Method(人脸对齐之SDM论文解析)
- 跨浏览器事件监听
- 运动在图像分割的应用
- Kafka 指南
- iOS——UIControl
- 剑指Offer34 丑数
- pg学习_基本表定义_创建表
- Ubuntu下搜狗输入法突然无法输入中文
- Erlang初步编程【转】
- Markdown语法进阶
- 支持向量机
- leetcode [Linked List Cycle]
- 签到