IOS Common Macro Definitions

Here are some of the macro definitions commonly used in IOS development:

//General tip information#define Malertview (title, msg) \Uialertview *alert = [[Uialertview alloc] Initwithtitle:title message:msgDelegate: Nil Cancelbuttontitle:@ "OK"Otherbuttontitles:nil]; [Alert show];#Define system_version_greater_than_or_equal_to (v) ([[[[Uidevice Currentdevice] systemversion] Compare: V Options:nsnumericsearch]! = nsorderedascending)//GCD#Define Back (block) Dispatch_async (dispatch_get_global_queue (dispatch_queue_priority_default, 0), Block)#Define MAIN (block) Dispatch_async (Dispatch_get_main_queue (), block)//----------interface design-------#define mnavbarheight#define mtabbarheight#define mscreenwidth ([UIScreen mainscreen].bounds.size.width)#define mscreenheight ([UIScreen mainscreen].bounds.size.height)//----------system---------#define Mretina ([UIScreen instancesrespondtoselector: @selector (currentmode)]? Cgsizeequaltosize (Cgsizemake (640, 960), [[UIScreen Mainscreen] currentmode].size): NO)#define mIsiP5 ([UIScreen instancesrespondtoselector: @selector (currentmode)]? Cgsizeequaltosize (Cgsizemake (640, 1136), [[UIScreen Mainscreen] currentmode].size): NO)#define mIsiP6 ([UIScreen instancesrespondtoselector: @selector (currentmode)]? Cgsizeequaltosize (Cgsizemake, 1334), [[UIScreen Mainscreen] currentmode].size): NO)#define misip6plus ([UIScreen instancesrespondtoselector: @selector (currentmode)]? Cgsizeequaltosize (Cgsizemake (1242, 2208), [[UIScreen Mainscreen] currentmode].size): NO)#define Mispad (ui_user_interface_idiom () = = Uiuserinterfaceidiompad)#define Misiphone (ui_user_interface_idiom () = = Uiuserinterfaceidiomphone)#define misios7orlater ([msystemversion floatvalue] >= 7.0? Yes:no)#define misios8orlater ([msystemversion floatvalue] >= 8.0? Yes:no)#define msystemversion ([[[Uidevice Currentdevice] systemversion])#define mdeviceopenudid ([openudid value])#define Mdevicemodel ([[[Uidevice Currentdevice] model])#define mdevicename ([[[Uidevice Currentdevice] name])#define mcurrentlanguage ([[[Nslocale Preferredlanguages] objectatindex:0])#define mappversion [[[[NSBundle Mainbundle] infodictionary] objectforkey:@ "cfbundleversion"]#Define mfirstlaunch mappversion//In the system version to determine whether the first event, including the promotion#define mfirstrun @ "FirstRun"//judge whether the first run, after the upgrade does not count

IOS Common Macro Definitions