iOS 消除警告

强迫症福音 - 如果你想让你的项目没有警告

#pragma clang diagnostic push
#pragma clang diagnostic ignored"-相关命令"
    // 警告的内容
    
#pragma clang diagnostic pop

方法弃用警告 -Wdeprecated-declarations

#pragma clang diagnostic push    
    
#pragma clang diagnostic ignored "-Wdeprecated-declarations"         
[TestFlight setDeviceIdentifier:[[UIDevice currentDevice] uniqueIdentifier]];    
    
#pragma clang diagnostic pop  

不兼容指针类型 -Wincompatible-pointer-types

#pragma clang diagnostic push     
#pragma clang diagnostic ignored "-Wincompatible-pointer-types"     
 
#pragma clang diagnostic pop  

循环引用 -Warc-retain-cycles

#pragma clang diagnostic push    
#pragma clang diagnostic ignored "-Warc-retain-cycles"    
    self.completionBlock = ^ {    
        ...    
    };    
#pragma clang diagnostic pop

未使用变量 -Wunused-variable

#pragma clang diagnostic push     
#pragma clang diagnostic ignored "-Wunused-variable"     
  int a;     
#pragma clang diagnostic pop 

未实现某个方法 -Wundeclared-selector

#pragma clang diagnostic push     
#pragma clang diagnostic ignored "-Wundeclared-selector"     
// 警告内容
#pragma clang diagnostic pop 

performSelector -Warc-performSelector-leaks

#pragma clang diagnostic push     
#pragma clang diagnostic ignored "-Warc-performSelector-leaks"     
// 警告内容
#pragma clang diagnostic pop 

什么? 没有你碰到的情况? 怎么可能!