iOS NSNumber和float相互转换,iOS NSNumber和float,NSNumber和float相互转换,NSNumber和float转换,NSNumber和float,

Xcode error: unexpected service error: The Xcode build system has crashed. Build again to continue,Xcode error,The Xcode build system has crashed,Build again to continue,

Xcode - Xcode如何解决Memory不显示内存使用的问题 - Xcode 显示 there is no memory profiling because NSZombieEnabled is enabled，打开 Diagnostics 之后找到 Memory Management，可以查看...

Xcode - Embedded binary's bundle identifier is not prefixed with the parent app's bundle identifier - 如果是直接从网上下载的工程，首先检查工程 TARGETS 下的 Bundle Identifier 是否已...

iOS NSString 替换字符串 - (NSString *)stringByReplacingOccurrencesOfString:(NSString *)target withString:(NSString *)replacement options:(NSStringCompareOptions)options range:(NSRa...

iOS NSString获取字符串长度,NSString获取字符串长度,NSString lengthOfBytesUsingEncoding, NSString length,NSString计算中文长度,

iOS UIImage 与 RGBA 相互转换 - UIImage 转 RGBA RGBA 转 UIImage iOS 视频图像开发中无法避免使用到 UIImage 与 Bytes Pixel 之间转换。bytes pixel 可以理解为将一张图片的所有像素点写到二...

Object-C UIImage 和 CVPixelBufferRef 相互转换 CVPixelBufferRef 转 UIImage UIImage 转 CVPixelBufferRef kCVPixelFormatType_OneComponent8 是单通道的黑白数据； kCVPixelFormatType_32ARG...

Xcode - Your maximum App ID limit has been reached. You may create up to 10 App IDs every 7 days - 1.出现这种情况,直接用上一次的 Bundle ID 就行了,因为免费 App ID 账号苹果官方有所限...

iOS NSString 与 char 相互转换 一.NSString 转 char 1.stringWithFormat 2.stringWithUTF8String 3.stringWithCString 二.char 转 NSString 1.UTF8String 2.cStringUsingEncoding