Xcode中去掉烦人的警告

升级到Xcode7之后,发现突然多了很多warning

之前写的

UINavigationItem *navItem = [[UINavigationItem alloc] initWithTitle:nil];// Null passed to a callee that requires a non-null argument

注意nil参数,为了兼容swift,所以Xcode里设置了nonnull/nullable

不嫌麻烦的话可以重写这个方法:

UINavigationItem *navItem = [[UINavigationItem alloc] initWithTitle:@””];

嫌烦的朋友可以直接加上这段

#pragma clang diagnostic push #pragma clang diagnostic ignored "-Wnonnull"

UINavigationItem *navItem = [[UINavigationItem alloc] initWithTitle:nil]; #pragma clang diagnostic pop

==================================================================================

// 让编译器忽略烦人的内存泄漏警告(慎用)

#pragma clang diagnostic push

#pragma clang diagnostic ignored “-Warc-performSelector-leaks”

data = [[NSData class] performSelector:dataWithUncompressedContentsOfFile withObject:bundlePath];

#pragma clang diagnostic pop

 

 

// 见不见为净的不兼容指针

#pragma clang diagnostic push

#pragma clang diagnostic ignored “-Wincompatible-pointer-types”

#pragma clang diagnostic pop

 

// 没有使用过的变量再也不提示了

#pragma clang diagnostic push

#pragma clang diagnostic ignored “-Wunused-variable”

NSString *strParams = @””;

#pragma clang diagnostic pop

 

http://clang.llvm.org/docs/UsersManual.html#diagnostics_pragmas