)index; //通过某个下标获取字典中的元素的键 - (M13GenericType(KeyType, id))keyAtIndex:(NSUInteger)index; //...)indexOfEntry:(NSDictionary M13Generics(KeyType, ObjectType) *)entry; //通过元素的值在某个范围内查询下标 - (NSUInteger...idx,BOOL *stop))predicate; //同上 只是这个方法可以设置枚举类型 /* typedef NS_OPTIONS(NSUInteger, NSEnumerationOptions...idx,BOOL *stop))predicate; //在一定下标集合中进行查找 - (NSUInteger)indexOfObjectAtIndices:(NSIndexSet *)indexSet...idx,BOOL *stop))predicate; //在范围内进行比较查询 - (NSUInteger)indexOfObject:(M13GenericType(ObjectType, id))
NSArray中属性与方法： //获取数组中元素个数 @property (readonly) NSUInteger count; //通过下标获数组中的元素 - (ObjectType)objectAtIndex...:(NSUInteger)index; //初始化方法 - (instancetype)init; //通过C语言风格的数组创建NSArray对象 需要注意，C数组中需要为Objective对象，cnt...inRange:(NSRange)range; //获取与给定元素相同的元素在数组中的最小下标值 - (NSUInteger)indexOfObjectIdenticalTo:(ObjectType)...anObject; //在一定范围内 获取与给定元素相同的元素在数组中的最小下标值 - (NSUInteger)indexOfObjectIdenticalTo:(ObjectType)anObject..., NSUInteger idx, BOOL *stop))predicate NS_AVAILABLE(10_6, 4_0); //同上 在一定下标集合中遍历 - (NSUInteger)indexOfObjectAtIndexes
插入文字标签在index位置： - (void)insertSegmentWithTitle:(NSString *)title atIndex:(NSUInteger)segment animated...*)image forSegmentAtIndex:(NSUInteger)segment; 获取标签图片 - (UIImage *)imageForSegmentAtIndex:(NSUInteger...根据索引获取标签宽度 - (CGFloat)widthForSegmentAtIndex:(NSUInteger)segment; 设置标签内容的偏移量 - (void)setContentOffset...:(CGSize)offset forSegmentAtIndex:(NSUInteger)segment; 注意：这个偏移量指的是标签的文字或者图片 根据索引获取变标签内容的偏移量 - (CGSize...forSegmentAtIndex:(NSUInteger)segment; 根据索引获取当前标签是否有效 - (BOOL)isEnabledForSegmentAtIndex:(NSUInteger
diskCapacity 设置磁盘缓存容量 path 磁盘缓存路径 内容缓存会在应用程序退出后 清空 磁盘缓存不会 */ - (instancetype)initWithMemoryCapacity:(NSUInteger...)memoryCapacity diskCapacity:(NSUInteger)diskCapacity diskPath:(nullable NSString *)path; //获取某一请求的缓存... (void)removeCachedResponsesSinceDate:(NSDate *)date NS_AVAILABLE(10_10, 8_0); //内存缓存容量大小 @property NSUInteger... memoryCapacity; //磁盘缓存容量大小 @property NSUInteger diskCapacity; //当前已用内存容量 @property (readonly) NSUInteger... currentMemoryUsage; //当前已用磁盘容量 @property (readonly) NSUInteger currentDiskUsage; 专注技术，热爱生活，交流技术，也做朋友
. /** * 二分查找循环实现 */ - (NSUInteger)binarySearch:(NSArray *)srcArray number:(NSNumber *...)des { NSUInteger low = 0; NSUInteger high = srcArray.count - 1; NSInteger middle = 0;...)binarySearch:(NSArray *)srcArray key:(NSNumber *)key low:(NSUInteger)low high:(NSUInteger...)insertSearch:(NSArray *)srcArray number:(NSNumber *)des { NSUInteger low = 0; NSUInteger...)insertSearch:(NSArray *)srcArray key:(NSNumber *)des low:(NSUInteger)low high:(NSUInteger
NSRange的定义 typedef struct _NSRange { NSUInteger location; NSUInteger length; } NSRange; NSRange是一个结构体...他们都是NSUInteger类型。...而NSUInteger类型的定义如下： #if __LP64__ || TARGET_OS_EMBEDDED || TARGET_OS_IPHONE || TARGET_OS_WIN32 || NS_BUILD..._32_LIKE_64 typedef unsigned long NSUInteger; #else typedef unsigned int NSUInteger; #endif 例子： 下面这个例子
+ (UIImage *)compressImageSize:(UIImage *)image toByte:(NSUInteger)maxLength { UIImage *resultImage =... image; NSData *data = UIImageJPEGRepresentation(resultImage, 1); NSUInteger lastDataLength = 0; while...)(resultImage.size.width * sqrtf(ratio)), (NSUInteger)(resultImage.size.height * sqrtf(ratio))); // Use... NSUInteger to prevent white blank UIGraphicsBeginImageContext(size); // Use image to draw (drawInRect...需要注意的是绘制尺寸的代码CGSize size = CGSizeMake((NSUInteger)(resultImage.size.width * sqrtf(ratio)), (NSUInteger
NSRange定义 Declaration: typedef struct _NSRange { NSUInteger location; NSUInteger length; } NSRange...; 创建NSRange的方法定义 Declaration: NSRange NSMakeRange ( NSUInteger loc, NSUInteger len ); 例如获取一个数组的一个子集
typedef NS_ENUM(NSUInteger, SMStudentGender) { SMStudentGenderMale, SMStudentGenderFemale };...typedef BOOL(^SatisfyActionBlock)(NSUInteger credit); @interface SMStudent : NSObject @property (nonatomic...name:(NSString *)name; - (SMStudent *)gender:(SMStudentGender)gender; - (SMStudent *)studentNumber:(NSUInteger...)number; //积分相关 - (SMStudent *)sendCredit:(NSUInteger(^)(NSUInteger credit))updateCreditBlock; - (SMStudent...下面我的具体的实现代码 @interface SMCreditSubject : NSObject typedef void(^SubscribeNextActionBlock)(NSUInteger
req]=NO，所以我们要压缩小于32Kb 压缩方法为： #pragma mark - 压缩图片 + (UIImage *)compressImage:(UIImage *)image toByte:(NSUInteger...imageWithData:data]; if (data.length < maxLength) return resultImage; // Compress by size NSUInteger...data.length; CGFloat ratio = (CGFloat)maxLength / data.length; CGSize size = CGSizeMake((NSUInteger...)(resultImage.size.width * sqrtf(ratio)), (NSUInteger)(resultImage.size.height...* sqrtf(ratio))); // Use NSUInteger to prevent white blank UIGraphicsBeginImageContext(size)
property (nonatomic, readonly, assign) CYLSex sex; (instancetype)initWithName:(NSString *)name age:(NSUInteger...)age sex:(CYLSex)sex; (instancetype)userWithName:(NSString *)name age:(NSUInteger)age sex:(CYLSex)sex...动画时间 -> NSTimeInterval 同时考虑到 age 的特点，应使用 NSUInteger ，而非 int 。...举例说明： // .m文件 @implementation CYLUser (instancetype)initWithName:(NSString *)name age:(NSUInteger)age...)age sex:(CYLSex)sex; (instancetype)initWithName:(NSString *)name age:(NSUInteger)age; (instancetype)
NSMutableArray array]; [self.searchResult enumerateObjectsUsingBlock:^(NSString * _Nonnull obj, NSUInteger...// 按照顺序模糊搜索 [items enumerateObjectsUsingBlock:^(GBSortSearchCountryItem * _Nonnull obj, NSUInteger...} return sortItems; } 根据需要过滤的类型进行过滤 /** 计算精确搜索出来的权重 @param range 搜索字符串的位置 @return 权重 */ - (NSUInteger...)exactMatchCountWithRange:(NSRange)range { NSUInteger currentIndex = range.location; NSUInteger...)fuzzySearchLevelTagWithItem:(GBSortSearchCountryItem *)item { NSUInteger count = 0; // 权重 NSUInteger
; [key getCString:keyPtr maxLength:sizeof(keyPtr) encoding:NSUTF8StringEncoding]; NSUInteger...; [key getCString:keyPtr maxLength:sizeof(keyPtr) encoding:NSUTF8StringEncoding]; NSUInteger...decodingTable == NULL) return nil; memset(decodingTable, CHAR_MAX, 256); NSUInteger...length = 0; NSUInteger i = 0; while (i < [data length]) { char buffer[3] =...kAlgorithmKeySize = kCCKeySizeAES256; const NSUInteger kPBKDFRounds = 10000; // ~80ms on an iPhone
range:(NSRange)rangeOfReceiverToSearch searchString 这个参数是我们需要查找的字符串 mask typedefNS_OPTIONS(NSUInteger...)index inResultString:(NSString *)resultString { NSUInteger indexCount = 0; NSRange...XCTAssertTrue(result4); } - (BOOL)isEqualTrue:(NSString *)findString atIndedx:(NSUInteger...findRange, compareRange); } 解决办法 - (NSRange)rangeOfString:(NSString *)string atIndex:(NSUInteger...)index inResultString:(NSString *)resultString { NSUInteger indexCount = 0; NSRange
获取省份 [self.rootArray enumerateObjectsUsingBlock:^(NSDictionary *obj, NSUInteger idx, BOOL * _Nonnull...self.arrayProvince objectAtIndex:12][@"cities"]]; [citys enumerateObjectsUsingBlock:^(NSDictionary *obj, NSUInteger...arrayWithArray:self.arrayCity[0][@"areas"]]; [countyAry enumerateObjectsUsingBlock:^(NSDictionary *obj, NSUInteger...self.arrayArea firstObject][@"streets"]]; [streetsAry enumerateObjectsUsingBlock:^(NSString *obj, NSUInteger
)from; //从0下标开始截取到指定位置的字符串 - (NSString *)substringToIndex:(NSUInteger)to; //截取指定范围的字符串 - (NSString *)...*)startPtr end:(nullable NSUInteger *)lineEndPtr contentsEnd:(nullable NSUInteger *)contentsEndPtr forRange...*)startPtr end:(nullable NSUInteger *)parEndPtr contentsEnd:(nullable NSUInteger *)contentsEndPtr forRange...encoding:(NSStringEncoding)encoding; //6.指定缓存区转换 - (BOOL)getBytes:(nullable void *)buffer maxLength:(NSUInteger...)maxBufferCount usedLength:(nullable NSUInteger *)usedBufferCount encoding:(NSStringEncoding)encoding
(nonatomic, assign, readonly) CGSize size; //GIF动画的封面帧图片的尺寸 @property (nonatomic, assign, readonly) NSUInteger...) NSDictionary *delayTimesForIndexes; // GIF动画中的每帧图片的显示时间集合 @property (nonatomic, assign, readonly) NSUInteger...frameCount; //GIF动画的帧数量 @property (nonatomic, assign, readonly) NSUInteger frameCacheSizeCurrent; //...当前被缓存的帧图片的总数量 @property (nonatomic, assign) NSUInteger frameCacheSizeMax; // 允许缓存多少帧图片 // Intended to...should be available immediately from the cache. // 取出对应索引的帧图片 - (UIImage *)imageLazilyCachedAtIndex:(NSUInteger
[[subject should] haveCountOf:(NSUInteger)aCount] [[subject should] haveCountOfAtLeast:(NSUInteger)aCount...] have:(NSUInteger)aCount] collectionKey] [[[subject should] haveAtLeast:(NSUInteger)aCount] collectionKey...] receive:(SEL)aSelector withCountAtMost:(NSUInteger)aCount] [[subject should] receive:(SEL)aSelector...[[subject should] receive:(SEL)aSelector withCount:(NSUInteger)aCount arguments:(id)firstArgument, .....[[subject should] receive:(SEL)aSelector andReturn:(id)aValue withCount:(NSUInteger)aCount arguments:
doubleRecognizer]; 5、获取当前触摸在指定视图上的点 - (CGPoint)locationInView:(nullable UIView*)view; 6、获取触摸手指数 - (NSUInteger...)numberOfTouches; 7、多指触摸的触摸点相对于指定视图的位置 - (CGPoint)locationOfTouch:(NSUInteger)touchIndex inView:(nullable...numberOfTapsRequired; 2、 设置能识别到手势的最少的手指的个数（默认为1） @property (nonatomic) NSUInteger numberOfTouchesRequired...numberOfTapsRequired; 2、最少触摸手指个数，默认为1 @property (nonatomic) NSUInteger numberOfTouchesRequired;、 3、....recognizer.rotation = 0; } 九、UIPanGestureRecognizer（拖拽手势） 1、设置触发拖拽最少手指数，默认为1 @property (nonatomic) NSUInteger
enumerateObjectsWithOptions:(NSEnumerationReverse) 22 // usingBlock:^( NSNumber* obj, NSUInteger...[3176:27943] --9,ind:9 */ 44 [lArr1 enumerateObjectsUsingBlock:^( NSNumber* obj, NSUInteger...stopOut = YES; 49 } 50 51 [lArr2 enumerateObjectsUsingBlock:^(id _Nonnull obj, NSUInteger...[3020:25596] --3,ind:3 */ 64 // [lArr1 enumerateObjectsUsingBlock:^( NSNumber* obj, NSUInteger...71 // 72 // [lArr2 enumerateObjectsUsingBlock:^(id _Nonnull obj, NSUInteger
领取专属 10元无门槛券
手把手带您无忧上云
云服务器
即时通信 IM
ICP备案
对象存储
实时音视频
