IOS 判断适配iPhone端和iPad端

#define PHONE_HEIGHT [[UIScreen mainScreen] bounds].size.height
#define IS_IPAD (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)
#if 0
//pad环境
    #define SCREEN_WIDTH            576
    #define SCREEN_HEIGHT           1024
    #define IPAD_INDEX              96
#else
//手机环境
    #define SCREEN_WIDTH            [[UIScreen mainScreen] bounds].size.width
    #define SCREEN_HEIGHT           [[UIScreen mainScreen] bounds].size.height
    #define IPAD_INDEX              0
#endif
//屏幕适配
#define STANDARD_WIDTH          414.0
#define RATIO                   SCREEN_WIDTH /414.0

// 1.判断是否为iOS7
#define iOS7 ([[UIDevice currentDevice].systemVersion doubleValue] >= 7.0)

if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {

      iPad端  
}else {

    iPhone端

}