如何在Xcode 5 iOS 7中以编程方式编辑plist?

问题描述：

如何从以下位置编辑或更改值字符串:

how can I edit or change a value string from:

在此plist中，我需要更改或在第2项的启用值"中设置否"，我看到了很多示例，但没有用，或者已弃用，或者不使用ARC，任何构想或示例代码?请帮助大家

in this plist I need change or Set "NO" in Enabled Value from Item 2, I see a lot examples, but not working, or are deprecated, or don't use ARC, any idea or example code? please help guys

EDIT#1:我尝试这样做(不起作用)

EDIT#1: I try this (not work)

 NSString *path = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];
    path = [path stringByAppendingPathComponent:@"List.plist"];

    NSFileManager *fileManager = [NSFileManager defaultManager];
    if (![fileManager fileExistsAtPath:path]) {
        NSString *sourcePath = [[NSBundle mainBundle] pathForResource:CONTENT_DEFAULT ofType:PLIST];
        [fileManager copyItemAtPath:sourcePath toPath:path error:nil];
    }

    NSArray*  newContent = [[NSArray alloc]initWithContentsOfFile:path];
    NSDictionary *Dict = [[NSDictionary alloc]initWithDictionary:[newContent objectAtIndex:2]];
     [Dict setValue:@"NO" forKey:@"Enabled"];
      [Dict writeToFile:path atomically:YES];

注意:不起作用，它崩溃后发给我:

NOTE: not work, it crashes send me:

*** Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[<__NSDictionaryI 0x15de7ff0> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key Enabled.', or Im wrong in something?

编辑#2新尝试

NSString *path = [[NSBundle mainBundle] pathForResource:@"List" ofType:@"plist"];

    NSString *savingPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];

    NSArray*  newContent = [[NSArray alloc]initWithContentsOfFile:path];
    NSMutableDictionary *Dict = [[NSMutableDictionary alloc]initWithDictionary:[newContent objectAtIndex:2]];
    [Dict setValue:@"NO" forKey:@"Enabled"];
    savingPath = [savingPath stringByAppendingPathComponent:@"Modified.plist"];
    [Dict writeToFile:savingPath atomically:YES];

    NSLog(@"newContent:%@",newContent);
    NSArray *newnew = [[NSArray alloc]initWithContentsOfFile:savingPath];
    NSLog(@"newnew:%@",newnew);

注意:现在打印出崩溃信息:

NOTE: now print me a crash:

*** Terminating app due to uncaught exception 'NSRangeException', reason: '-[__NSCFArray objectAtIndex:]: index (3) beyond bounds (2)'

答

您要做的就是使用NSMutableDictionary而不是常规词典来修改内容.您必须始终检查要编辑的对象是否在那里.

All you have to do is to use NSMutableDictionary instead of a regular dictionary to modify stuff. You have to always check that the object you are editing is there.

要获取在Xcode中创建的plist的正确路径，您需要使用:

To get the right path for the plist you created in Xcode you need to use:

NSString *path = [[NSBundle mainBundle] pathForResource:@"List" ofType:@"plist"];

您实际上可能希望将该文件保存到应用程序的文档目录中.因此，您可以使用以下路径保存内容:

You might actually want to save that file into the app's document directory. So you would use the following path for saving the content:

NSString *savingPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];
savingPath = [savingPath stringByAppendingPathComponent:@"Modified.plist"];
[Dict writeToFile:savingPath atomically:YES];

如何在Xcode 5 iOS 7中以编程方式编辑plist?

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