一:消除警告 警告1.没有用到
#pragma clang diagnostic push #pragma clang diagnostic ignored"-Wunused-variable" // unused-variable 类型的警告代码! #pragma clang diagnostic pop警告2.方法弃用
#pragma clang diagnostic push #pragma clang diagnostic ignored "-Wdeprecated-declarations" UIAlertView *alert = [[UIAlertView alloc]initWithTitle:message message:nil delegate:nil cancelButtonTitle:nil otherButtonTitles:nil, nil]; [alert show]; [alert performSelector:@selector(dismissWithClickedButtonIndex:animated:) withObject:nil afterDelay:2]; #pragma clang diagnostic pop注解:
#pragma clang diagnostic push
#pragma clang diagnostic ignored “字段详见:警告类型”
//警告类型对应的警告代码块
#pragma clang diagnostic pop
|___________________________________________________ 二:自己写警告
警告1:方法在这个范围内使用:NS_DEPRCATED_IOS(范围)
/**验证手机号码是否正确*/ + (void)checkPhoneNumber:(NSString *)phoneNumString completed:(completed) completed NS_DEPRECATED_IOS(2_0, 4_0);警告2:自定义警告提示信息:__attribute((deprecated(“邮箱的正则表达式需要精简”)))
+ (void)checkEmail:(NSString *)emailString completed:(completed)completed __attribute((deprecated("邮箱的正则表达式需要精简")));