如何写入plist文件？

问题描述：

我写了一小段代码写入plist文件。我没有收到XCode的任何错误或警告，所以我真的迷失了。在这段代码中没有定义“Root”，但它只是从plist中提取的数据字典。如何写入plist文件？

有没有人有一个想法，为什么这不会写入plist文件？它从字面上根本不会改变文件。

NSMutableArray *newReports = [[NSMutableArray alloc] init]; 
    newReports = [[Root objectForKey:@"Reports"] mutableCopy ]; 

    //Creating data model for new report 
    NSMutableDictionary *newReport = [[NSMutableDictionary alloc] init]; 

    NSString *tempTitle = titleField.text; 
    NSString *tempEmployee = employeeField.text; 
    NSArray *tempNodes = [[NSArray alloc] init]; 

    [newReport setObject:tempTitle forKey:@"Title"]; 
    [newReport setObject:tempEmployee forKey:@"Employee"]; 
    [newReport setObject:tempNodes forKey:@"Nodes"]; 

    [newReports addObject:newReport]; 

    NSMutableDictionary *newRoot = [[NSMutableDictionary alloc] init]; 

    [newRoot setObject:newReports forKey:@"Reports"]; 

    //Writing data to plist 
    NSString *Path = [[NSBundle mainBundle] bundlePath]; 
    NSString *filePath = [Path stringByAppendingPathComponent:@"data.plist"]; 

    [newRoot writeToFile:filePath atomically: YES];

感谢您的帮助！

答

试图构建这样

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, 
                 NSUserDomainMask, YES); 
NSString *documentsDirectoryPath = [paths objectAtIndex:0]; 
NSString *filePath = [documentsDirectoryPath 
         stringByAppendingPathComponent:@"data.plist"]; 
[newRoot writeToFile:filePath atomically: YES];

感谢您的帮助文件的路径，但我认为这个问题是关系到构建newReport - 它原来是一个零值。 – Andrew 2010-11-07 03:20:36

答

如何写入plist文件？

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