用于UILabel设置textAlignment时除去警告的宏定义_ios警告忽略宏定义-优快云博客

本文介绍如何创建一个名为MyMacros.h的头文件，用于在iOS和macOS应用中自定义文本对齐方式和换行行为。包括不同设备和系统版本之间的兼容性处理。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

#ifndef __MY_MACROS_H___
#define __MY_MACROS_H___
    #ifdef __IPHONE_6_0
        #define kTextAlignmentLeft NSTextAlignmentLeft
        #define kTextAlignmentCenter NSTextAlignmentCenter
        #define kTextAlignmentRight NSTextAlignmentRight
        #define kLineBreakModeCharaterWrap NSLineBreakByCharWrapping
        #define kLineBreakModeWordWrap NSLineBreakByWordWrapping
        #define kLineBreakModeClip NSLineBreakByClipping
        #define kLineBreakModeTruncatingHead NSLineBreakByTruncatingHead
        #define kLineBreakModeTruncatingMiddle NSLineBreakByTruncatingMiddle
        #define kLineBreakModeTruncatingTail NSLineBreakByTruncatingTail
    #else
        #define kTextAlignmentLeft UITextAlignmentLeft
        #define kTextAlignmentCenter UITextAlignmentCenter
        #define kTextAlignmentRight UITextAlignmentRight
        #define kLineBreakModeCharaterWrap UILineBreakModeCharacterWrap
        #define kLineBreakModeWordWrap UILineBreakModeWordWrap
        #define kLineBreakModeClip UILineBreakModeClip
        #define kLineBreakModeTruncatingHead UILineBreakModeHeadTruncation
        #define kLineBreakModeTruncatingMiddle UILineBreakModeMiddleTruncation
        #define kLineBreakModeTruncatingTail UILineBreakModeTailTruncation
    #endif

    #define kMainScreenFrame [[UIScreen mainScreen] bounds]
    #define kMainScreenWidth kMainScreenFrame.size.width
    #define kMainScreenHeight kMainScreenFrame.size.height-20
    #define kApplicationFrame [[UIScreen mainScreen] applicationFrame]
#endif

写一个头文件，命名为MyMacros.h, 把上述代码粘贴进去，之后将该文件#import到项目的预加载头文件.pch中去。