ios - NSMutableArray 保存和加载到默认值无法正常工作

Question

已解决 这是我的错，我有另一个 if 阻止了方法调用。对不起。

i have problem saving and loading an NSMutableArray to the NSUSerDefaults. Im going to copy the whole code here, its 2 function. i Think there is some problems with the savving.

    +(NSArray*)getarenawordsarraywithcheck{

    NSUserDefaults *defaults=[NSUserDefaults standardUserDefaults];
    NSArray *array=[defaults arrayForKey:@"arenaszavakosszes"];
    if ([array count]==0) {


            NSString *path=[[NSBundle mainBundle] pathForResource:@"arenawordsenglish" ofType:@"plist"];
            array=[NSArray arrayWithContentsOfFile:path];
            [defaults setObject:array forKey:@"arenaszavakosszes"];
            [defaults synchronize];


    }
    NSLog(@"Actual Size of the array:%i",[array count]);
    return array;
}
+(void) deletestringfromarenawordsandsaveforstring:(NSString*)actualword{

    NSUserDefaults *defaults=[NSUserDefaults standardUserDefaults];
    NSMutableArray *array=[[defaults objectForKey:@"arenaszavakosszes"]mutableCopy] ;
    NSLog(@"Removing the words: %@ from the words actuall size of the array:%i",actualword,[array count]);

    [array removeObject:actualword];
    [defaults setObject:array forKey:@"arenaszavakosszes"];
    [defaults synchronize];
    NSLog(@"Removed. New size of the array:%i",[array count]);
}

UI: I tried to use even the [defaults mutableArrayValueForKey:@"arenaszavakosszes"]. The problem is, when I try to load the array in the second method it returns nil. Help please.

Answer 1

使用objectForKey而不是arrayForKey:

NSArray *array=[defaults objectForKey:@"arenaszavakosszes"];