前言

有些时候Xcode的警告过多，或者有些警告是多余的，可以使用#pragma clang diagnostic语法去除。

语法

• 适用整个.m文件

#pragma GCC diagnostic ignored "-W+相关命令"
@implementation BDActionSheetInvite

• 适用指定代码

#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-W+相关命令"
            [weakSelf performSelector:NSSelectorFromString(selectorStr)];
#pragma GCC diagnostic pop

GCC可以替换为clang

#pragma clang diagnostic push
#pragma clang diagnostic ignored "-W+相关命令"
            [weakSelf performSelector:NSSelectorFromString(selectorStr)];
#pragma clang diagnostic pop

几个常用的命令

#pragma clang diagnostic ignored "-Warc-performSelector-leaks"
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
#pragma clang diagnostic ignored "UnavailableInDeploymentTarget"
#pragma clang diagnostic ignored "-Wunused-variable"
#pragma clang diagnostic ignored "UnresolvedMessage"
#pragma clang diagnostic ignored "-Wincompatible-pointer-types"
#pragma clang diagnostic ignored "-Warc-retain-cycles"

参考链接

地址很有意思……
http://fuckingclangwarnings.com

去除其它警告

1.

file:///Users/lixiang/Desktop/HCSM/FlowersAndTrees/FlowersAndTrees/Search/FlowersAndTrees-Bridging-Header.h: warning: Missing file: /Users/lixiang/Desktop/HCSM/FlowersAndTrees/FlowersAndTrees/Search/FlowersAndTrees-Bridging-Header.h is missing from working copy

可以进入文件对应目录，之后使用git rm FlowersAndTrees-Bridging-Header.h删除。
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