objective-c - 将 NSMutableDictionary 保存到 plist iOS

Question

这在过去的一天变得非常令人沮丧，而且有点太多了：为什么这不起作用？

 NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
 NSString *documentsDirectory = [paths objectAtIndex:0];
 NSString *path = [documentsDirectory stringByAppendingPathComponent:[NSString stringWithFormat:@"%@.plist",kAllScoresUnorderedArray]];

 NSMutableDictionary *test = [[NSMutableDictionary alloc] init];
 [test setObject:@"bob" forKey:@"tmo"];

 [test writeToFile:path atomically: YES];

我以前用过它，而且效果很好：我忘记在 info.plist 中添加什么了吗？这是我唯一能想到的。

感谢您的帮助！

编辑：也许它与 Xcode 4.5 和 iOS6 有关？它适用于 4.3/iOS5

Answer 1

您是否已将 .plist 文件添加到您的项目中？如果是这样，试试这个：

NSError *error;
        NSFileManager *fileManager = [[NSFileManager alloc] init];
     NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
     NSString *documentsDirectory = [paths objectAtIndex:0];
     NSString *path = [documentsDirectory stringByAppendingPathComponent:[NSString stringWithFormat:@"%@.plist",kAllScoresUnorderedArray]];

    if (![fileManager fileExistsAtPath: path])
            {
                NSString *bundle = [[NSBundle mainBundle] pathForResource:kAllScoresUnorderedArray ofType:@"plist"];

                [fileManager copyItemAtPath:bundle toPath: path error:&error];
            }

     NSMutableDictionary *test = [[NSMutableDictionary alloc] initWithContentsOfFile: path];
     [test setObject:@"bob" forKey:@"tmo"];

     [test writeToFile:path atomically: YES];

如果没有，请在您的项目中创建属性列表。