寫入包含字典數組的plist

Question

我試圖寫一個包含字典數組的plist。 每個字典都包含一個字符串，用於定義該字典（房間）的屬性。 我只想寫一個字符串，以根據if語句的結果將該屬性設置為某種值。

plist的示例：

客房=（

        {
       Availability = unavailable;
        Floor = 1;
        Name = "Ferret Room";
        Status = Busy;
        Time = "4.00pm";
    },
            {
        Availability = unavailable;
        Floor = 1;
        Name = "Squirrel Room ";
        Status = Busy;
        Time = "4.00pm";
    },

這是我的代碼示例：

        NSString* newPlistPath = nil;
    NSFileManager* manager = [NSFileManager defaultManager];
    if ((newPlistPath = [[[NSBundle mainBundle] bundlePath] stringByAppendingPathComponent:@"Favourites/Favourites.plist"]))
    {
        if ([manager isWritableFileAtPath:plistPath])
        {
            NSMutableDictionary* infoDict = [NSMutableDictionary dictionaryWithContentsOfFile:plistPath];
            NSLog(@"infoDict %@", infoDict);
            NSLog(@"infoDict %@", [[infoDict objectForKey:@"Availability"] objectAtIndex:0]);

            [infoDict setValue:@"available" forKey:@"Rooms.Availability"];
            [infoDict writeToFile:newPlistPath atomically:NO];
            [manager setAttributes:[NSDictionary dictionaryWithObject:[NSDate date] forKey:NSFileModificationDate] ofItemAtPath:[[NSBundle mainBundle] bundlePath] error:nil];
        }
    }

任何幫助將不勝感激。 有類似的問題，但我無法解決。 謝謝。

Answer 1

// Make a path to the plist in the Documents directory (not the bundle directory, because you can't write to that directory)
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString * newPlistPath = [[paths objectAtIndex:0] stringByAppendingPathComponent:@"Favourites.plist"];

NSFileManager* manager = [NSFileManager defaultManager];

if ((newPlistPath)
{
    if ([manager isWritableFileAtPath:plistPath])
    {
        NSMutableDictionary* infoDict = [NSMutableDictionary dictionaryWithContentsOfFile:plistPath];
        NSLog(@"infoDict %@", infoDict);
        NSLog(@"infoDict %@", [[infoDict objectForKey:@"Availability"] objectAtIndex:0]);

        [infoDict setValue:@"available" forKey:@"Rooms.Availability"];
        [infoDict writeToFile:newPlistPath atomically:NO];
        [manager setAttributes:[NSDictionary dictionaryWithObject:[NSDate date] forKey:NSFileModificationDate] ofItemAtPath:[[NSBundle mainBundle] bundlePath] error:nil];
    }
}