Ⅰ iOS如何判断是iOS11系统的宏定义
系统宏汇集
__FILE__
当前文件所在目录
__DATE__
“替代文字”是一个含有编译日期的字符串字面值，日期格式为“mm dd yyyy”（例如：“Mar 19 2006”）。如果日期小于10日，就在日的前面放一个空格符。NSLog(@"_DATE_=%s",__DATE__);
__FUNCTION__
当前函数名称
__LINE__
当前语句在源文件中的行数
__TIME__
此字符串字面值包含编译时间，格式为“hh:mm:ss”（范例：“08:00:59”）。
__STDC__
整数常量1，表示此编译器遵循ISOC标准。
__STDC_VERSION__
如何实现复合C89整部1，则这个宏的值为19940SL；如果实现符合C99，则这个宏的值为199901L；否则数值是未定义
__STDC_EOBTED__
(C99)实现为宿主实现时为1,实现为独立实现为0
__STDC_IEC_559__
(C99)浮点数实现复合IBC 60559标准时定义为1，否者数值是未定义
__STDC_IEC_559_COMPLEX__
(C99)复数运算实现复合IBC 60559标准时定义为1，否者数值是未定义
__STDC_ISO_10646__
(C99)定义为长整型常量，yyyymmL表示wchar_t值复合ISO 10646标准及其指定年月的修订补充，否则数值未定义
Ⅱ 如何用宏区分ios工程和macos工程
像种需要用宏实现定义同工程
共同代码部用宏判断
Ⅲ 宏定义怎样得到ios的系统版本
获得IOS系统版本号
[[[UIDevice currentDevice] systemVersion] floatValue]
获得硬件名称
+ (NSString*)getMachine{
size_t size;
sysctlbyname("hw.machine", NULL, &size, NULL, 0);
char *name = malloc(size);
sysctlbyname("hw.machine", name, &size, NULL, 0);
NSString *machine = [NSString stringWithCString:name encoding:NSUTF8StringEncoding];
free(name);
if( [machine isEqualToString:@"i386"] || [machine isEqualToString:@"x86_64"] ) machine = @"ios_Simulator";
else if( [machine isEqualToString:@"iPhone1,1"] ) machine = @"iPhone_1G";
else if( [machine isEqualToString:@"iPhone1,2"] ) machine = @"iPhone_3G";
else if( [machine isEqualToString:@"iPhone2,1"] ) machine = @"iPhone_3GS";
else if( [machine isEqualToString:@"iPhone3,1"] ) machine = @"iPhone_4";
else if( [machine isEqualToString:@"iPod1,1"] ) machine = @"iPod_Touch_1G";
else if( [machine isEqualToString:@"iPod2,1"] ) machine = @"iPod_Touch_2G";
else if( [machine isEqualToString:@"iPod3,1"] ) machine = @"iPod_Touch_3G";
else if( [machine isEqualToString:@"iPod4,1"] ) machine = @"iPod_Touch_4G";
else if( [machine isEqualToString:@"iPad1,1"] ) machine = @"iPad_1";
else if( [machine isEqualToString:@"iPad2,1"] ) machine = @"iPad_2";
return machine;
}
Ⅳ 如何判断当前iOS设备
开发当中几种判断当前iOS设备的实现方法，简单粗暴的代码段展现，希望对大家能有所帮助。
1.在程序中涉及到全屏的宽高的时候，初始化的时候，代码中不要写320和480
#define Screen_height [[UIScreen mainScreen] bounds].size.height #define Screen_width [[UIScreen mainScreen] bounds].size.width 2.使用宏定义方法判断
#define iPhone5 ([UIScreen instancesRespondToSelector:@selector(currentMode)] ? CGSizeEqualToSize(CGSizeMake(640, 1136), [[UIScreen mainScreen] currentMode].size) : NO) if（iPhone5）{ /*代码操作*/ }else{ /*代码操作*/ } if([ [ UIDevice currentDevice ] userInterfaceIdiom ] == UIUserInterfaceIdiomPhone ){ //IPhone设备 }else{ //ipad设备 }
网上还有一种方法：
+ (NSString*)deviceString { // 需要#import "sys/utsname.h" struct utsname systemInfo; uname(&systemInfo); NSString *deviceString = [NSString stringWithCString:systemInfo.machine encoding:NSUTF8StringEncoding]; if ([deviceString isEqualToString:@"iPhone1,1"]) return @"iPhone 1G"; if ([deviceString isEqualToString:@"iPhone1,2"]) return @"iPhone 3G"; if ([deviceString isEqualToString:@"iPhone2,1"]) return @"iPhone 3GS"; if ([deviceString isEqualToString:@"iPhone3,1"]) return @"iPhone 4"; if ([deviceString isEqualToString:@"iPhone4,1"]) return @"iPhone 4S"; if ([deviceString isEqualToString:@"iPhone5,2"]) return @"iPhone 5"; if ([deviceString isEqualToString:@"iPhone3,2"]) return @"Verizon iPhone 4"; if ([deviceString isEqualToString:@"iPod1,1"]) return @"iPod Touch 1G"; if ([deviceString isEqualToString:@"iPod2,1"]) return @"iPod Touch 2G"; if ([deviceString isEqualToString:@"iPod3,1"]) return @"iPod Touch 3G"; if ([deviceString isEqualToString:@"iPod4,1"]) return @"iPod Touch 4G"; if ([deviceString isEqualToString:@"iPad1,1"]) return @"iPad"; if ([deviceString isEqualToString:@"iPad2,1"]) return @"iPad 2 (WiFi)"; if ([deviceString isEqualToString:@"iPad2,2"]) return @"iPad 2 (GSM)"; if ([deviceString isEqualToString:@"iPad2,3"]) return @"iPad 2 (CDMA)"; if ([deviceString isEqualToString:@"i386"]) return @"Simulator"; if ([deviceString isEqualToString:@"x86_64"]) return @"Simulator"; NSLog(@"NOTE: Unknown device type: %@", deviceString); return deviceString; }
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