ONNULL
UIView詳解
//
// UIView.h
// ZMHeaderFile
//
// Created by ZengZhiming on 2017/5/22.
// Copyright © 2017年 菜鳥基地. All rights reserved.
//
// 詳解 UIResponder.h
// Version iOS 10.3
//
#import <Foundation/Foundation.h>
#import <QuartzCore/QuartzCore.h>
#import <UIKit/UIResponder.h>
#import <UIKit/UIInterface.h>
#import <UIKit/UIKitDefines.h>
#import <UIKit/UIAppearance.h>
#import <UIKit/UIDynamicBehavior.h>
#import <UIKit/NSLayoutConstraint.h>
#import <UIKit/UITraitCollection.h>
#import <UIKit/UIFocus.h>
NS_ASSUME_NONNULL_BEGIN
/** 動畫的曲線枚舉 */
typedef NS_ENUM(NSInteger, UIViewAnimationCurve) {
UIViewAnimationCurveEaseInOut, //!< 慢進慢出（默認值）.
UIViewAnimationCurveEaseIn, //!< 慢進.
UIViewAnimationCurveEaseOut, //!< 慢出.
UIViewAnimationCurveLinear, //!< 勻速.
};
//!< UIView內容填充模式.
typedef NS_ENUM(NSInteger, UIViewContentMode) {
UIViewContentModeScaleToFill, //!< 縮放內容到合適比例大小.
UIViewContentModeScaleAspectFit, //!< 縮放內容到合適的大小，邊界多餘部分透明.
UIViewContentModeScaleAspectFill, //!< 縮放內容填充到指定大小，邊界多餘的部分省略.
UIViewContentModeRedraw, //!< 重繪視圖邊界 (需調用 -setNeedsDisplay).
UIViewContentModeCenter, //!< 視圖保持等比縮放.
UIViewContentModeTop, //!< 視圖頂部對齊.
UIViewContentModeBottom, //!< 視圖底部對齊.
UIViewContentModeLeft, //!< 視圖左側對齊.
UIViewContentModeRight, //!< 視圖右側對齊.
UIViewContentModeTopLeft, //!< 視圖左上角對齊.
UIViewContentModeTopRight, //!< 視圖右上角對齊.
UIViewContentModeBottomLeft, //!< 視圖左下角對齊.
UIViewContentModeBottomRight, //!< 視圖右下角對齊.
};
/** UIView動畫過渡效果 */
typedef NS_ENUM(NSInteger, UIViewAnimationTransition) {
UIViewAnimationTransitionNone, //!< 無效果.
UIViewAnimationTransitionFlipFromLeft, //!< 沿視圖垂直中心軸左到右移動.
UIViewAnimationTransitionFlipFromRight, //!< 沿視圖垂直中心軸右到左移動.
UIViewAnimationTransitionCurlUp, //!< 由底部向上捲起.
UIViewAnimationTransitionCurlDown, //!< 由頂部向下展開.
};
/** 自動調整大小方式 */
typedef NS_OPTIONS(NSUInteger, UIViewAutoresizing) {
UIViewAutoresizingNone = 0, //!< 不自動調整.
UIViewAutoresizingFlexibleLeftMargin = 1 << 0,//!< 自動調整與superView左邊的距離，保證與superView右邊的距離不變.
UIViewAutoresizingFlexibleWidth = 1 << 1,//!< 自動調整自己的寬度，保證與superView左邊和右邊的距離不變.
UIViewAutoresizingFlexibleRightMargin = 1 << 2,//!< 自動調整與superView的右邊距離，保證與superView左邊的距離不變.
UIViewAutoresizingFlexibleTopMargin = 1 << 3,//!< 自動調整與superView頂部的距離，保證與superView底部的距離不變.
UIViewAutoresizingFlexibleHeight = 1 << 4,//!< 自動調整自己的高度，保證與superView頂部和底部的距離不變.
UIViewAutoresizingFlexibleBottomMargin = 1 << 5 //!< 自動調整與superView底部的距離，也就是說，與superView頂部的距離不變.
};
/** UIView動畫選項 */
typedef NS_OPTIONS(NSUInteger, UIViewAnimationOptions) {
UIViewAnimationOptionLayoutSubviews = 1 << 0, //!< 動畫過程中保證子視圖跟隨運動.
UIViewAnimationOptionAllowUserInteraction = 1 << 1, //!< 動畫過程中允許用戶交互.
UIViewAnimationOptionBeginFromCurrentState = 1 << 2, //!< 所有視圖從當前狀態開始運行.
UIViewAnimationOptionRepeat = 1 << 3, //!< 重複運行動畫.
UIViewAnimationOptionAutoreverse = 1 << 4, //!< 動畫運行到結束點後仍然以動畫方式回到初始點.
UIViewAnimationOptionOverrideInheritedDuration = 1 << 5, //!< 忽略嵌套動畫時間設置.
UIViewAnimationOptionOverrideInheritedCurve = 1 << 6, //!< 忽略嵌套動畫速度設置.
UIViewAnimationOptionAllowAnimatedContent = 1 << 7, //!< 動畫過程中重繪視圖（注意僅僅適用於轉場動畫）.
UIViewAnimationOptionShowHideTransitionViews = 1 << 8, //!< 視圖切換時直接隱藏舊視圖、顯示新視圖，而不是將舊視圖從父視圖移除（僅僅適用於轉場動畫）.
UIViewAnimationOptionOverrideInheritedOptions = 1 << 9, //!< 不繼承父動畫設置或動畫類型.
UIViewAnimationOptionCurveEaseInOut = 0 << 16, //!< 動畫先緩慢，然後逐漸加速.
UIViewAnimationOptionCurveEaseIn = 1 << 16, //!< 動畫逐漸變慢.
UIViewAnimationOptionCurveEaseOut = 2 << 16, //!< 動畫逐漸加速.
UIViewAnimationOptionCurveLinear = 3 << 16, //!< 動畫勻速執行，默認值.
UIViewAnimationOptionTransitionNone = 0 << 20, //!< 沒有轉場動畫效果.
UIViewAnimationOptionTransitionFlipFromLeft = 1 << 20, //!< 從左側翻轉效果.
UIViewAnimationOptionTransitionFlipFromRight = 2 << 20, //!< 從右側翻轉效果.
UIViewAnimationOptionTransitionCurlUp = 3 << 20, //!< 向後翻頁的動畫過渡效果.
UIViewAnimationOptionTransitionCurlDown = 4 << 20, //!< 向前翻頁的動畫過渡效果.
UIViewAnimationOptionTransitionCrossDissolve = 5 << 20, //!< 舊視圖溶解消失顯示下一個新視圖的效果.
UIViewAnimationOptionTransitionFlipFromTop = 6 << 20, //!< 從上方翻轉效果.
UIViewAnimationOptionTransitionFlipFromBottom = 7 << 20, //!< 從底部翻轉效果.
UIViewAnimationOptionPreferredFramesPerSecondDefault = 0 << 24, //!< 默認的幀每秒.
UIViewAnimationOptionPreferredFramesPerSecond60 = 3 << 24, //!< 60幀每秒的幀速率.
UIViewAnimationOptionPreferredFramesPerSecond30 = 7 << 24, //!< 30幀每秒的幀速率.
} NS_ENUM_AVAILABLE_IOS(4_0);
typedef NS_OPTIONS(NSUInteger, UIViewKeyframeAnimationOptions) {
UIViewKeyframeAnimationOptionLayoutSubviews = UIViewAnimationOptionLayoutSubviews, //!< 動畫過程中保證子視圖跟隨運動.
UIViewKeyframeAnimationOptionAllowUserInteraction = UIViewAnimationOptionAllowUserInteraction, //!< 動畫過程中允許用戶交互.
UIViewKeyframeAnimationOptionBeginFromCurrentState = UIViewAnimationOptionBeginFromCurrentState, //!< 所有視圖從當前狀態開始運行.
UIViewKeyframeAnimationOptionRepeat = UIViewAnimationOptionRepeat, //!< 重複運行動畫.
UIViewKeyframeAnimationOptionAutoreverse = UIViewAnimationOptionAutoreverse, //!< 動畫運行到結束點後仍然以動畫方式回到初始點.
UIViewKeyframeAnimationOptionOverrideInheritedDuration = UIViewAnimationOptionOverrideInheritedDuration, //!< 忽略嵌套動畫時間設置.
UIViewKeyframeAnimationOptionOverrideInheritedOptions = UIViewAnimationOptionOverrideInheritedOptions, //!< 不繼承父動畫設置或動畫類型.
UIViewKeyframeAnimationOptionCalculationModeLinear = 0 << 10, //!< 連續運算模式, 默認.
UIViewKeyframeAnimationOptionCalculationModeDiscrete = 1 << 10, //!< 離散運算模式.
UIViewKeyframeAnimationOptionCalculationModePaced = 2 << 10, //!< 均勻執行運算模式.
UIViewKeyframeAnimationOptionCalculationModeCubic = 3 << 10, //!< 平滑運算模式.
UIViewKeyframeAnimationOptionCalculationModeCubicPaced = 4 << 10 //!< 平滑均勻運算模式.
} NS_ENUM_AVAILABLE_IOS(7_0);
typedef NS_ENUM(NSUInteger, UISystemAnimation) {
UISystemAnimationDelete, //!< 系統刪除動畫
} NS_ENUM_AVAILABLE_IOS(7_0);
typedef NS_ENUM(NSInteger, UIViewTintAdjustmentMode) {
UIViewTintAdjustmentModeAutomatic, //!< 自動的，與父視圖相同.
UIViewTintAdjustmentModeNormal, //!< 未經修改的.
UIViewTintAdjustmentModeDimmed, //!< 飽和、暗淡的原始色.
} NS_ENUM_AVAILABLE_IOS(7_0);
typedef NS_ENUM(NSInteger, UISemanticContentAttribute) {
UISemanticContentAttributeUnspecified = 0, //!< 未指定，默認值
UISemanticContentAttributePlayback, //!< 打開/ RW / FF等播放控制按鈕
UISemanticContentAttributeSpatial, //!< 控制導致某種形式的定向改變UI中,如分段控制文本對齊方式或在遊戲中方向鍵
UISemanticContentAttributeForceLeftToRight, //!< 視圖總是從左向右佈局.
UISemanticContentAttributeForceRightToLeft //!< 視圖總是從右向左佈局.
} NS_ENUM_AVAILABLE_IOS(9_0);
@protocol UICoordinateSpace <NSObject>
/** 將像素point由point所在視圖轉換到目標視圖view中，返回在目標視圖view中的像素值 */
- (CGPoint)convertPoint:(CGPoint)point toCoordinateSpace:(id <UICoordinateSpace>)coordinateSpace NS_AVAILABLE_IOS(8_0);
/** 將像素point由point所在視圖轉換到目標視圖view中，返回在目標視圖view中的像素值 */
- (CGPoint)convertPoint:(CGPoint)point fromCoordinateSpace:(id <UICoordinateSpace>)coordinateSpace NS_AVAILABLE_IOS(8_0);
/** 將rect由rect所在視圖轉換到目標視圖view中，返回在目標視圖view中的rect */
- (CGRect)convertRect:(CGRect)rect toCoordinateSpace:(id <UICoordinateSpace>)coordinateSpace NS_AVAILABLE_IOS(8_0);
/** 將rect從view中轉換到當前視圖中，返回在當前視圖中的rect */
- (CGRect)convertRect:(CGRect)rect fromCoordinateSpace:(id <UICoordinateSpace>)coordinateSpace NS_AVAILABLE_IOS(8_0);
/** 獲取bounds */
@property (readonly, nonatomic) CGRect bounds NS_AVAILABLE_IOS(8_0);
@end
@class UIBezierPath, UIEvent, UIWindow, UIViewController, UIColor, UIGestureRecognizer, UIMotionEffect, CALayer, UILayoutGuide;
NS_CLASS_AVAILABLE_IOS(2_0) @interface UIView : UIResponder <NSCoding, UIAppearance, UIAppearanceContainer, UIDynamicItem, UITraitEnvironment, UICoordinateSpace, UIFocusItem, CALayerDelegate>
/** 返回主layer所使用的類 */
#if UIKIT_DEFINE_AS_PROPERTIES
@property(class, nonatomic, readonly) Class layerClass;
#else
+ (Class)layerClass;
#endif
/** 通過Frame初始化UI對象 */
- (instancetype)initWithFrame:(CGRect)frame NS_DESIGNATED_INITIALIZER;
/** 用於xib初始化 */
- (nullable instancetype)initWithCoder:(NSCoder *)aDecoder NS_DESIGNATED_INITIALIZER;
/** 設置用戶交互，默認YES允許用戶交互 */
@property(nonatomic,getter=isUserInteractionEnabled) BOOL userInteractionEnabled;
/** 控件標記(父控件可以通過tag找到對應的子控件)，默認爲0 */
@property(nonatomic) NSInteger tag;
/** 視圖圖層(可以用來設置圓角效果/陰影效果) */
@property(nonatomic,readonly,strong) CALayer *layer;
/** 返回是否可以成爲焦點, 默認NO */
#if UIKIT_DEFINE_AS_PROPERTIES
@property(nonatomic,readonly) BOOL canBecomeFocused NS_AVAILABLE_IOS(9_0);
#else
- (BOOL)canBecomeFocused NS_AVAILABLE_IOS(9_0);
#endif
/** 是否可以被聚焦 */
@property (readonly, nonatomic, getter=isFocused) BOOL focused NS_AVAILABLE_IOS(9_0);
/** 左右滑動翻轉效果 */
@property (nonatomic) UISemanticContentAttribute semanticContentAttribute NS_AVAILABLE_IOS(9_0);
/** 獲取視圖的方向 */
+ (UIUserInterfaceLayoutDirection)userInterfaceLayoutDirectionForSemanticContentAttribute:(UISemanticContentAttribute)attribute NS_AVAILABLE_IOS(9_0);
/** 獲取相對於指定視圖的界面方向 */
+ (UIUserInterfaceLayoutDirection)userInterfaceLayoutDirectionForSemanticContentAttribute:(UISemanticContentAttribute)semanticContentAttribute relativeToLayoutDirection:(UIUserInterfaceLayoutDirection)layoutDirection NS_AVAILABLE_IOS(10_0);
/** 返回即時內容的佈局的方向 */
@property (readonly, nonatomic) UIUserInterfaceLayoutDirection effectiveUserInterfaceLayoutDirection NS_AVAILABLE_IOS(10_0);
@end
@interface UIView(UIViewGeometry)
/** 位置和尺寸(以父控件的左上角爲座標原點(0, 0)) */
@property(nonatomic) CGRect frame;
/** 位置和尺寸(以自己的左上角爲座標原點(0, 0)) */
@property(nonatomic) CGRect bounds;
/** 中心點(以父控件的左上角爲座標原點(0, 0)) */
@property(nonatomic) CGPoint center;
/** 變形屬性(平移\縮放\旋轉) */
@property(nonatomic) CGAffineTransform transform;
/** 視圖內容的縮放比例 */
@property(nonatomic) CGFloat contentScaleFactor NS_AVAILABLE_IOS(4_0);
/** 是否支持多點觸摸，默認NO */
@property(nonatomic,getter=isMultipleTouchEnabled) BOOL multipleTouchEnabled __TVOS_PROHIBITED;
/** 是否獨佔整個Touch事件，默認NO */
@property(nonatomic,getter=isExclusiveTouch) BOOL exclusiveTouch __TVOS_PROHIBITED;
/** 在指定點上點擊測試指定事件 */
- (nullable UIView *)hitTest:(CGPoint)point withEvent:(nullable UIEvent *)event;
/** 判斷當前的點擊或者觸摸事件的點是否在當前的view中，默認返回YES */
- (BOOL)pointInside:(CGPoint)point withEvent:(nullable UIEvent *)event;
/** 將像素point由point所在視圖轉換到目標視圖view中，返回在目標視圖view中的像素值 */
- (CGPoint)convertPoint:(CGPoint)point toView:(nullable UIView *)view;
/** 將像素point由point所在視圖轉換到目標視圖view中，返回在目標視圖view中的像素值 */
- (CGPoint)convertPoint:(CGPoint)point fromView:(nullable UIView *)view;
/** 將rect由rect所在視圖轉換到目標視圖view中，返回在目標視圖view中的rect */
- (CGRect)convertRect:(CGRect)rect toView:(nullable UIView *)view;
/** 將rect從view中轉換到當前視圖中，返回在當前視圖中的rect */
- (CGRect)convertRect:(CGRect)rect fromView:(nullable UIView *)view;
/** 自動調整子視圖尺寸，默認YES則會根據autoresizingMask屬性自動調整子視圖尺寸 */
@property(nonatomic) BOOL autoresizesSubviews;
/** 自動調整子視圖與父視圖的位置，默認UIViewAutoresizingNone */
@property(nonatomic) UIViewAutoresizing autoresizingMask;
/** 返回“最佳”大小適合給定的大小 */
- (CGSize)sizeThatFits:(CGSize)size;
/** 調整爲剛好合適子視圖大小 */
- (void)sizeToFit;
@end
@interface UIView(UIViewHierarchy)
/** 獲取父視圖 */
@property(nullable, nonatomic,readonly) UIView *superview;
/** 獲取所有子視圖 */
@property(nonatomic,readonly,copy) NSArray<__kindof UIView *> *subviews;
/** 獲取視圖所在的Window */
@property(nullable, nonatomic,readonly) UIWindow *window;
/** 從父視圖中移除控件 */
- (void)removeFromSuperview;
/** 插入子視圖(將子視圖插入到subviews數組中index這個位置) */
- (void)insertSubview:(UIView *)view atIndex:(NSInteger)index;
/** 交換subviews數組中所存放子視圖的位置 */
- (void)exchangeSubviewAtIndex:(NSInteger)index1 withSubviewAtIndex:(NSInteger)index2;
/** 添加子視圖(新添加的視圖在subviews數組的後面, 顯示在最上面) */
- (void)addSubview:(UIView *)view;
/** 插入子視圖(將子視圖插到siblingSubview之下) */
- (void)insertSubview:(UIView *)view belowSubview:(UIView *)siblingSubview;
/** 插入子視圖(將子視圖插到siblingSubview之上) */
- (void)insertSubview:(UIView *)view aboveSubview:(UIView *)siblingSubview;
/** 將子視圖拉到最上面來顯示 */
- (void)bringSubviewToFront:(UIView *)view;
/** 將子視圖拉到最下面來顯示 */
- (void)sendSubviewToBack:(UIView *)view;
##pragma mark - 系統自動調用(留給子類去實現)
/** 添加自視圖完成後調用 */
- (void)didAddSubview:(UIView *)subview;
/** 將要移除自視圖時調用 */
- (void)willRemoveSubview:(UIView *)subview;
/** 將要移動到新父視圖時調用 */
- (void)willMoveToSuperview:(nullable UIView *)newSuperview;
/** 移動到新父視圖完成後調用 */
- (void)didMoveToSuperview;
/** 將要移動到新Window時調用 */
- (void)willMoveToWindow:(nullable UIWindow *)newWindow;
/** 移動到新Window完成後調用 */
- (void)didMoveToWindow;
/** 判斷view是否爲子類 */
- (BOOL)isDescendantOfView:(UIView *)view;
/** 通過tag獲得對應的子視圖 */
- (nullable __kindof UIView *)viewWithTag:(NSInteger)tag;
/** 對現在有佈局有調整更改後，使用這個方法進行更新 */
- (void)setNeedsLayout;
/** 強制進行更新layout */
- (void)layoutIfNeeded;
/** 控件的frame發生改變的時候就會調用,一般在這裏重寫佈局子控件的位置和尺寸 */
- (void)layoutSubviews;
/** 設置view之間的間距，該屬性只對autolayout佈局有效 */
@property (nonatomic) UIEdgeInsets layoutMargins NS_AVAILABLE_IOS(8_0);
/** 是否將當前視圖的間距和父視圖相同，默認是NO */
@property (nonatomic) BOOL preservesSuperviewLayoutMargins NS_AVAILABLE_IOS(8_0);
/** 改變view的layoutMargins這個屬性時，會觸發這個方法 */
- (void)layoutMarginsDidChange NS_AVAILABLE_IOS(8_0);
/** 視圖間距引導 */
@property(readonly,strong) UILayoutGuide *layoutMarginsGuide NS_AVAILABLE_IOS(9_0);
/** 獲取此區域的內的佈局引導 */
@property (nonatomic, readonly, strong) UILayoutGuide *readableContentGuide NS_AVAILABLE_IOS(9_0);
@end
@interface UIView(UIViewRendering)
/** 重寫drawRect方法，在可以這裏進行繪圖操作。*/
- (void)drawRect:(CGRect)rect;
/** 標記整個視圖的邊界矩形需要重繪, 調用這個方法會自動調用drawRect方法 */
- (void)setNeedsDisplay;
/** 標記在指定區域內的視圖的邊界需要重繪, 調用這個方法會自動調用drawRect方法 */
- (void)setNeedsDisplayInRect:(CGRect)rect;
/** 是否裁剪超出Bounds範圍的子控件，默認NO */
@property(nonatomic) BOOL clipsToBounds;
/** 設置背景顏色，默認nil */
@property(nullable, nonatomic,copy) UIColor *backgroundColor UI_APPEARANCE_SELECTOR;
/** 設置透明度(範圍0.0~1.0)，默認1.0 */
@property(nonatomic) CGFloat alpha;
/** 設置是否不透明，默認YES不透明 */
@property(nonatomic,getter=isOpaque) BOOL opaque;
/** 視圖重繪前是否先清理以前的內容，默認YES */
@property(nonatomic) BOOL clearsContextBeforeDrawing;
/** 設置是否隱藏，默認NO不隱藏 */
@property(nonatomic,getter=isHidden) BOOL hidden;
/** 內容顯示的模式，默認UIViewContentModeScaleToFill */
@property(nonatomic) UIViewContentMode contentMode;
/** 拉伸屬性，如圖片拉伸 */
@property(nonatomic) CGRect contentStretch NS_DEPRECATED_IOS(3_0,6_0) __TVOS_PROHIBITED;
/** 蒙板view */
@property(nullable, nonatomic,strong) UIView *maskView NS_AVAILABLE_IOS(8_0);
/** 改變應用程序的外觀的顏色。默認爲nil */
@property(null_resettable, nonatomic, strong) UIColor *tintColor NS_AVAILABLE_IOS(7_0);
/** 可以使tintColor變暗，因此整個視圖層次變暗 */
@property(nonatomic) UIViewTintAdjustmentMode tintAdjustmentMode NS_AVAILABLE_IOS(7_0);
/** 覆蓋這個方法的目的是爲了當tintColor改變的時候自定義一些行爲 */
- (void)tintColorDidChange NS_AVAILABLE_IOS(7_0);
@end
@interface UIView(UIViewAnimation)
/** 開始動畫 */
+ (void)beginAnimations:(nullable NSString *)animationID context:(nullable void *)context;
/** 提交動畫 */
+ (void)commitAnimations;
/** 設置動畫代理, 默認nil */
+ (void)setAnimationDelegate:(nullable id)delegate;
/** 動畫將要開始時執行方法（必須要先設置動畫代理）, 默認NULL */
+ (void)setAnimationWillStartSelector:(nullable SEL)selector;
/** 動畫已結束時執行方法（必須要先設置動畫代理）, 默認NULL */
+ (void)setAnimationDidStopSelector:(nullable SEL)selector;
/** 設置動畫時長, 默認0.2秒 */
+ (void)setAnimationDuration:(NSTimeInterval)duration;
/** 動畫延遲執行時間, 默認0.0秒 */
+ (void)setAnimationDelay:(NSTimeInterval)delay;
/** 設置在動畫塊內部動畫屬性改變的開始時間, 默認now ([NSDate date]) */
+ (void)setAnimationStartDate:(NSDate *)startDate;
/** 設置動畫曲線, 默認UIViewAnimationCurveEaseInOut */
+ (void)setAnimationCurve:(UIViewAnimationCurve)curve;
/** 動畫的重複播放次數， 默認0 */
+ (void)setAnimationRepeatCount:(float)repeatCount;
/** 設置是否自定翻轉當前的動畫效果, 默認NO */
+ (void)setAnimationRepeatAutoreverses:(BOOL)repeatAutoreverses;
/** 設置動畫從當前狀態開始播放, 默認NO */
+ (void)setAnimationBeginsFromCurrentState:(BOOL)fromCurrentState;
/** 在動畫塊中爲視圖設置過渡動畫 */
+ (void)setAnimationTransition:(UIViewAnimationTransition)transition forView:(UIView *)view cache:(BOOL)cache;
/** 設置是否激活動畫 */
+ (void)setAnimationsEnabled:(BOOL)enabled;
/** 返回一個布爾值表示動畫是否結束 */
#if UIKIT_DEFINE_AS_PROPERTIES
@property(class, nonatomic, readonly) BOOL areAnimationsEnabled;
#else
+ (BOOL)areAnimationsEnabled;
#endif
/** 先檢查動畫當前是否啓用，然後禁止動畫，執行block內的方法，最後重新啓用動畫，而且這個方法不會阻塞基於CoreAnimation的動畫 */
+ (void)performWithoutAnimation:(void (NS_NOESCAPE ^)(void))actionsWithoutAnimation NS_AVAILABLE_IOS(7_0);
/** 當前動畫的持續時間 */
#if UIKIT_DEFINE_AS_PROPERTIES
@property(class, nonatomic, readonly) NSTimeInterval inheritedAnimationDuration NS_AVAILABLE_IOS(9_0);
#else
+ (NSTimeInterval)inheritedAnimationDuration NS_AVAILABLE_IOS(9_0);
#endif
@end
@interface UIView(UIViewAnimationWithBlocks)
/** 用於對一個或多個視圖的改變的持續時間、延時、選項動畫完成時的操作 */
+ (void)animateWithDuration:(NSTimeInterval)duration delay:(NSTimeInterval)delay options:(UIViewAnimationOptions)options animations:(void (^)(void))animations completion:(void (^ __nullable)(BOOL finished))completion NS_AVAILABLE_IOS(4_0);
/** 用於對一個或多個視圖的改變的持續時間、選項動畫完成時的操作，默認：delay = 0.0, options = 0 */
+ (void)animateWithDuration:(NSTimeInterval)duration animations:(void (^)(void))animations completion:(void (^ __nullable)(BOOL finished))completion NS_AVAILABLE_IOS(4_0);
/** 用於對一個或多個視圖的改變的持續時間內動畫完成時的操作，默認：delay = 0.0, options = 0, completion = NULL */
+ (void)animateWithDuration:(NSTimeInterval)duration animations:(void (^)(void))animations NS_AVAILABLE_IOS(4_0);
/** 使用與物理彈簧運動相對應的定時曲線執行視圖動畫 */
+ (void)animateWithDuration:(NSTimeInterval)duration delay:(NSTimeInterval)delay usingSpringWithDamping:(CGFloat)dampingRatio initialSpringVelocity:(CGFloat)velocity options:(UIViewAnimationOptions)options animations:(void (^)(void))animations completion:(void (^ __nullable)(BOOL finished))completion NS_AVAILABLE_IOS(7_0);
/** 爲指定的容器視圖創建轉換動畫 */
+ (void)transitionWithView:(UIView *)view duration:(NSTimeInterval)duration options:(UIViewAnimationOptions)options animations:(void (^ __nullable)(void))animations completion:(void (^ __nullable)(BOOL finished))completion NS_AVAILABLE_IOS(4_0);
/** 使用給定的參數在指定視圖之間創建轉換動畫 */
+ (void)transitionFromView:(UIView *)fromView toView:(UIView *)toView duration:(NSTimeInterval)duration options:(UIViewAnimationOptions)options completion:(void (^ __nullable)(BOOL finished))completion NS_AVAILABLE_IOS(4_0); // toView added to fromView.superview, fromView removed from its superview
/** 在一個或多個視圖上執行指定的系統提供的動畫，以及定義的可選並行動畫 */
+ (void)performSystemAnimation:(UISystemAnimation)animation onViews:(NSArray<__kindof UIView *> *)views options:(UIViewAnimationOptions)options animations:(void (^ __nullable)(void))parallelAnimations completion:(void (^ __nullable)(BOOL finished))completion NS_AVAILABLE_IOS(7_0);
@end
/** UIView的關鍵幀動畫 */
@interface UIView (UIViewKeyframeAnimations)
/** 創建一個動畫塊對象，可用於爲當前視圖設置基於關鍵幀的動畫 */
+ (void)animateKeyframesWithDuration:(NSTimeInterval)duration delay:(NSTimeInterval)delay options:(UIViewKeyframeAnimationOptions)options animations:(void (^)(void))animations completion:(void (^ __nullable)(BOOL finished))completion NS_AVAILABLE_IOS(7_0);
/** 添加指定開始時間、持續時間的關鍵幀動畫(起始和持續時間是0.0和1.0之間的值) */
+ (void)addKeyframeWithRelativeStartTime:(double)frameStartTime relativeDuration:(double)frameDuration animations:(void (^)(void))animations NS_AVAILABLE_IOS(7_0);
@end
@interface UIView (UIViewGestureRecognizers)
/** 當前視圖所附加的所有手勢識別器 */
@property(nullable, nonatomic,copy) NSArray<__kindof UIGestureRecognizer *> *gestureRecognizers NS_AVAILABLE_IOS(3_2);
/** 添加一個手勢識別器 */
- (void)addGestureRecognizer:(UIGestureRecognizer*)gestureRecognizer NS_AVAILABLE_IOS(3_2);
/** 移除一個手勢識別器 */
- (void)removeGestureRecognizer:(UIGestureRecognizer*)gestureRecognizer NS_AVAILABLE_IOS(3_2);
/** 開始一個手勢識別器 */
- (BOOL)gestureRecognizerShouldBegin:(UIGestureRecognizer *)gestureRecognizer NS_AVAILABLE_IOS(6_0);
@end
@interface UIView (UIViewMotionEffects)
/** 添加運動效果，當傾斜設備時視圖稍微改變其位置 */
- (void)addMotionEffect:(UIMotionEffect *)effect NS_AVAILABLE_IOS(7_0);
/** 移除運動效果 */
- (void)removeMotionEffect:(UIMotionEffect *)effect NS_AVAILABLE_IOS(7_0);
/** 所有添加的運動效果 */
@property (copy, nonatomic) NSArray<__kindof UIMotionEffect *> *motionEffects NS_AVAILABLE_IOS(7_0);
@end
typedef NS_ENUM(NSInteger, UILayoutConstraintAxis) {
UILayoutConstraintAxisHorizontal = 0, //!< 水平約束.
UILayoutConstraintAxisVertical = 1 //!< 豎直約束.
};
@interface UIView (UIConstraintBasedLayoutInstallingConstraints)
/** 獲取所有約束 */
@property(nonatomic,readonly) NSArray<__kindof NSLayoutConstraint *> *constraints NS_AVAILABLE_IOS(6_0);
/** 添加一個約束 */
- (void)addConstraint:(NSLayoutConstraint *)constraint NS_AVAILABLE_IOS(6_0);
/** 添加多個約束 */
- (void)addConstraints:(NSArray<__kindof NSLayoutConstraint *> *)constraints NS_AVAILABLE_IOS(6_0);
/** 移除一個約束 */
- (void)removeConstraint:(NSLayoutConstraint *)constraint NS_AVAILABLE_IOS(6_0);
/** 移除多個約束 */
- (void)removeConstraints:(NSArray<__kindof NSLayoutConstraint *> *)constraints NS_AVAILABLE_IOS(6_0);
@end
@interface UIView (UIConstraintBasedLayoutCoreMethods)
/** 更新視圖和其子視圖的約束 */
- (void)updateConstraintsIfNeeded NS_AVAILABLE_IOS(6_0);
/** 爲視圖更新約束，可以重寫這個方法來設置當前view局部的佈局約束 */
- (void)updateConstraints NS_AVAILABLE_IOS(6_0) NS_REQUIRES_SUPER;
/** 視圖的約束是否需要更新 */
- (BOOL)needsUpdateConstraints NS_AVAILABLE_IOS(6_0);
/** 設置視圖的約束需要更新，調用這個方法，系統會調用updateConstraints去更新佈局 */
- (void)setNeedsUpdateConstraints NS_AVAILABLE_IOS(6_0);
@end
@interface UIView (UIConstraintBasedCompatibility)
/** 是否啓用自動佈局約束，默認YES. IB默認是NO */
@property(nonatomic) BOOL translatesAutoresizingMaskIntoConstraints NS_AVAILABLE_IOS(6_0);
/** 是否使用約束佈局 */
#if UIKIT_DEFINE_AS_PROPERTIES
@property(class, nonatomic, readonly) BOOL requiresConstraintBasedLayout NS_AVAILABLE_IOS(6_0);
#else
+ (BOOL)requiresConstraintBasedLayout NS_AVAILABLE_IOS(6_0);
#endif
@end
@interface UIView (UIConstraintBasedLayoutLayering)
/** 返回給定框架的視圖的對齊矩陣 */
- (CGRect)alignmentRectForFrame:(CGRect)frame NS_AVAILABLE_IOS(6_0);
/** 返回給定對齊矩形的視圖的frame */
- (CGRect)frameForAlignmentRect:(CGRect)alignmentRect NS_AVAILABLE_IOS(6_0);
/** 返回從視圖的frame上定義的對齊矩陣的邊框 */
#if UIKIT_DEFINE_AS_PROPERTIES
@property(nonatomic, readonly) UIEdgeInsets alignmentRectInsets NS_AVAILABLE_IOS(6_0);
#else
- (UIEdgeInsets)alignmentRectInsets NS_AVAILABLE_IOS(6_0);
#endif
/** 返回滿足基線約束條件的視圖 */
- (UIView *)viewForBaselineLayout NS_DEPRECATED_IOS(6_0, 9_0, "Override -viewForFirstBaselineLayout or -viewForLastBaselineLayout as appropriate, instead") __TVOS_PROHIBITED;
/** 返回用於滿足第一基線約束的視圖 */
@property(readonly,strong) UIView *viewForFirstBaselineLayout NS_AVAILABLE_IOS(9_0);
/** 返回用於滿足上次基線約束的視圖 */
@property(readonly,strong) UIView *viewForLastBaselineLayout NS_AVAILABLE_IOS(9_0);
UIKIT_EXTERN const CGFloat UIViewNoIntrinsicMetric NS_AVAILABLE_IOS(6_0); // -1
/** 返回接收對象的原本大小 */
#if UIKIT_DEFINE_AS_PROPERTIES
@property(nonatomic, readonly) CGSize intrinsicContentSize NS_AVAILABLE_IOS(6_0);
#else
- (CGSize)intrinsicContentSize NS_AVAILABLE_IOS(6_0);
#endif
/** 廢除視圖原本內容的size */
- (void)invalidateIntrinsicContentSize NS_AVAILABLE_IOS(6_0);
/** 設置當視圖要變大時，視圖的壓縮改變方式，返回一個優先權（確定view有多大的優先級阻止自己變大） */
- (UILayoutPriority)contentHuggingPriorityForAxis:(UILayoutConstraintAxis)axis NS_AVAILABLE_IOS(6_0);
/** 設置放先權 */
- (void)setContentHuggingPriority:(UILayoutPriority)priority forAxis:(UILayoutConstraintAxis)axis NS_AVAILABLE_IOS(6_0);
/** 設置當視圖要變小時，視圖的壓縮改變方式，是水平縮小還是垂直縮小，並返回一個優先權（確定有多大的優先級阻止自己變小） */
- (UILayoutPriority)contentCompressionResistancePriorityForAxis:(UILayoutConstraintAxis)axis NS_AVAILABLE_IOS(6_0);
/** 設置優先權 */
- (void)setContentCompressionResistancePriority:(UILayoutPriority)priority forAxis:(UILayoutConstraintAxis)axis NS_AVAILABLE_IOS(6_0);
@end
// Size To Fit
UIKIT_EXTERN const CGSize UILayoutFittingCompressedSize NS_AVAILABLE_IOS(6_0);
UIKIT_EXTERN const CGSize UILayoutFittingExpandedSize NS_AVAILABLE_IOS(6_0);
@interface UIView (UIConstraintBasedLayoutFittingSize)
/** 返回滿足持有約束的視圖的size */
- (CGSize)systemLayoutSizeFittingSize:(CGSize)targetSize NS_AVAILABLE_IOS(6_0);
/** 返回滿足它所包含的約束的視圖的大小 */
- (CGSize)systemLayoutSizeFittingSize:(CGSize)targetSize withHorizontalFittingPriority:(UILayoutPriority)horizontalFittingPriority verticalFittingPriority:(UILayoutPriority)verticalFittingPriority NS_AVAILABLE_IOS(8_0);
@end
@interface UIView (UILayoutGuideSupport)
/** 此視圖擁有佈局嚮導對象的數組 */
@property(nonatomic,readonly,copy) NSArray<__kindof UILayoutGuide *> *layoutGuides NS_AVAILABLE_IOS(9_0);
/** 向視圖中添加布局嚮導 */
- (void)addLayoutGuide:(UILayoutGuide *)layoutGuide NS_AVAILABLE_IOS(9_0);
/** 向視圖中添加布局嚮導 */
- (void)removeLayoutGuide:(UILayoutGuide *)layoutGuide NS_AVAILABLE_IOS(9_0);
@end
@class NSLayoutXAxisAnchor,NSLayoutYAxisAnchor,NSLayoutDimension;
@interface UIView (UIViewLayoutConstraintCreation)
/** 佈局視圖的前緣框的佈局錨點 */
@property(readonly, strong) NSLayoutXAxisAnchor *leadingAnchor NS_AVAILABLE_IOS(9_0);
/** 佈局視圖的後緣邊框的佈局錨點 */
@property(readonly, strong) NSLayoutXAxisAnchor *trailingAnchor NS_AVAILABLE_IOS(9_0);
/** 佈局視圖的左邊框的佈局錨點 */
@property(readonly, strong) NSLayoutXAxisAnchor *leftAnchor NS_AVAILABLE_IOS(9_0);
/** 佈局視圖的右邊框的佈局錨點 */
@property(readonly, strong) NSLayoutXAxisAnchor *rightAnchor NS_AVAILABLE_IOS(9_0);
/** 佈局視圖的頂邊框的佈局錨點 */
@property(readonly, strong) NSLayoutYAxisAnchor *topAnchor NS_AVAILABLE_IOS(9_0);
/** 佈局視圖的底邊框的佈局錨點 */
@property(readonly, strong) NSLayoutYAxisAnchor *bottomAnchor NS_AVAILABLE_IOS(9_0);
/** 佈局視圖的寬度 */
@property(readonly, strong) NSLayoutDimension *widthAnchor NS_AVAILABLE_IOS(9_0);
/** 佈局視圖的高度 */
@property(readonly, strong) NSLayoutDimension *heightAnchor NS_AVAILABLE_IOS(9_0);
/** 佈局視圖的水平中心軸 */
@property(readonly, strong) NSLayoutXAxisAnchor *centerXAnchor NS_AVAILABLE_IOS(9_0);
/** 佈局視圖的垂直中心軸 */
@property(readonly, strong) NSLayoutYAxisAnchor *centerYAnchor NS_AVAILABLE_IOS(9_0);
/** 一個代表對視圖中的文本的最高線基線佈置錨 */
@property(readonly, strong) NSLayoutYAxisAnchor *firstBaselineAnchor NS_AVAILABLE_IOS(9_0);
/** 一個代表對視圖中的文本的最低線基線佈置錨 */
@property(readonly, strong) NSLayoutYAxisAnchor *lastBaselineAnchor NS_AVAILABLE_IOS(9_0);
@end
@interface UIView (UIConstraintBasedLayoutDebugging)
/** 獲得實體在不同方向上所有的佈局約束 */
- (NSArray<__kindof NSLayoutConstraint *> *)constraintsAffectingLayoutForAxis:(UILayoutConstraintAxis)axis NS_AVAILABLE_IOS(6_0);
/** 可以知道當前視圖的佈局是否會有歧義 */
#if UIKIT_DEFINE_AS_PROPERTIES
@property(nonatomic, readonly) BOOL hasAmbiguousLayout NS_AVAILABLE_IOS(6_0);
#else
- (BOOL)hasAmbiguousLayout NS_AVAILABLE_IOS(6_0);
#endif
/** 這個方法會隨機改變視圖的layout到另外一個有效的layout。這樣我們就可以很清楚的看到哪一個layout導致了整體的佈局約束出現了錯誤，或者我們應該增加更多的佈局約束 */
- (void)exerciseAmbiguityInLayout NS_AVAILABLE_IOS(6_0);
@end
/** 約束調試，只在DEBUG環境下被調用 */
@interface UILayoutGuide (UIConstraintBasedLayoutDebugging)
/** 獲得實體在不同方向上所有的佈局約束 */
- (NSArray<__kindof NSLayoutConstraint *> *)constraintsAffectingLayoutForAxis:(UILayoutConstraintAxis)axis NS_AVAILABLE_IOS(10_0);
/** 可以知道當前視圖的佈局是否會有歧義 */
#if UIKIT_DEFINE_AS_PROPERTIES
@property(nonatomic, readonly) BOOL hasAmbiguousLayout NS_AVAILABLE_IOS(10_0);
#else
- (BOOL)hasAmbiguousLayout NS_AVAILABLE_IOS(10_0);
#endif
@end
#pragma mark - View狀態保存恢復
@interface UIView (UIStateRestoration)
/** 標示是否支持保存,恢復視圖狀態信息 */
@property (nullable, nonatomic, copy) NSString *restorationIdentifier NS_AVAILABLE_IOS(6_0);
/** 保存視圖狀態相關的信息 */
- (void) encodeRestorableStateWithCoder:(NSCoder *)coder NS_AVAILABLE_IOS(6_0);
/** 恢復和保持視圖狀態相關信息 */
- (void) decodeRestorableStateWithCoder:(NSCoder *)coder NS_AVAILABLE_IOS(6_0);
@end
#pragma mark - View快照
@interface UIView (UISnapshotting)
/** 將當前顯示的view截取成一個新的view */
- (nullable UIView *)snapshotViewAfterScreenUpdates:(BOOL)afterUpdates NS_AVAILABLE_IOS(7_0);
/** 縮放一個view默認是從中心點進行縮放的 */
- (nullable UIView *)resizableSnapshotViewFromRect:(CGRect)rect afterScreenUpdates:(BOOL)afterUpdates withCapInsets:(UIEdgeInsets)capInsets NS_AVAILABLE_IOS(7_0);
/** 屏幕快照 */
- (BOOL)drawViewHierarchyInRect:(CGRect)rect afterScreenUpdates:(BOOL)afterUpdates NS_AVAILABLE_IOS(7_0);
@end
NS_ASSUME_NONNULL_END
ONNULL