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我正在尝试在 iPhone 应用程序中按 Aa-Zz 格式对 NSMutablArray 值进行排序。我在我的项目中使用了以下代码。

for (id key in [dictionary allKeys])
        {
            id value = [dictionary valueForKey:key];
            [duplicateArray addObject:value];
            [value release];
            value =nil;
            NSSortDescriptor *sortdis = [[[NSSortDescriptor alloc] initWithKey:@"Name" ascending:YES] autorelease];
            NSArray *discriptor = [NSArray arrayWithObjects:sortdis,nil];
            mutableArray = [[duplicateArray sortedArrayUsingDescriptors:discriptor]retain];
        }   
        NSLog(@"mutableArray : %@", mutableArray);
[mutableArray sortUsingSelector:@selector(caseInsensitiveCompare:)];

应用程序因此错误日志而崩溃：[__NSArrayI sortUsingSelector:]: unrecognized selector sent to instance.

但是，我已经搜索并找到了崩溃的原因。我的 mutableArray 值是这样的，

(
        {
        Id = 00001;
        Name = "ABCD";
    },
        {
        Id = 00002;
        Name = "BCDE";
    },
        {
        Id = 00003;
        Name = "ZXYS";
    },
        {
        Id = 00004;
        Name = "abcd";
    },
        {
        Id = 00009;
        Name = "bcde";
    },
)

我想对这个数组值进行排序，如ABCD、abcd、BCDE、bcde、ZXYs。任何人都可以帮助解决这个问题。

4

2 回答 2

1

戈皮纳特。请在您的项目中使用此更新的代码。

    for (id key in [dictionary allKeys])
    {
        id value = [dictionary valueForKey:key];
        [duplicateArray addObject:value];
        [value release];
        value =nil;
        NSSortDescriptor *sortdis = [[[NSSortDescriptor alloc] initWithKey:@"Name" ascending:YES selector:@selector(localizedCaseInsensitiveCompare:)]autorelease];
        NSArray *discriptor = [NSArray arrayWithObjects:sortdis,nil];
        mutableArray = [[duplicateArray sortedArrayUsingDescriptors:discriptor]retain];
    }   
    NSLog(@"mutableArray : %@", mutableArray);

我希望它会帮助你。谢谢。

于 2012-06-30T11:29:22.130 回答
0 
    for (id key in [dictionary allKeys])
    {
        id value = [dictionary valueForKey:key];
        [duplicateArray addObject:value];
    }   
    NSSortDescriptor *sortdis = [[[NSSortDescriptor alloc] initWithKey:@"Name" ascending:YES selector:@selector(localizedCaseInsensitiveCompare:)]autorelease];
    NSArray *discriptor = [NSArray arrayWithObjects:sortdis,nil];
    NSArray* notAMutableArray = [[duplicateArray sortedArrayUsingDescriptors:discriptor]retain];
    NSLog(@"notAMutableArray : %@", notAMutableArray);

我没有运行它，但它是一个更好的开始......

于 2012-06-30T11:53:50.573 回答