"Value stored to '***' during its initialization is never read"

sankpeter

于 2014-04-22 10:09:14 发布

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分类专栏： ios

本文链接：https://blog.youkuaiyun.com/sankpeter/article/details/24292151

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本文针对Xcode在进行代码分析时出现的初始化变量未读取警告进行了解析，并提供了具体的修正方案。通过调整变量声明方式及初始化时机，有效避免了此类警告的出现。

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Xcode-->product-->Anslyze

   NSString *fileName = [[NSString alloc] init]; //Value stored to 'fileName' during its initialization is never read

    
    if ([info objectForKey:UIImagePickerControllerReferenceURL])
    {
        fileName = [[info objectForKey:UIImagePickerControllerReferenceURL] absoluteString];
        fileName = [self getFileName:fileName];
    }
    else
    {
        fileName = [self timeStampAsString];
    }
   
    [[NSUserDefaults standardUserDefaults] setValue:fileName forKey:@"fileName"];

修改为

    NSString *fileName;
    
    if ([info objectForKey:UIImagePickerControllerReferenceURL])
    {
        fileName = [[info objectForKey:UIImagePickerControllerReferenceURL] absoluteString];
        fileName = [self getFileName:fileName];
    }
    else
    {
        fileName = [self timeStampAsString];
    } 
    
    [[NSUserDefaults standardUserDefaults] setValue:fileName forKey:@"fileName"];

参考 Stackflow
http://stackoverflow.com/questions/12665081/value-stored-to-mykeyarray-during-its-initialization-is-never-read