我有未排序的字典数组，我想根据艺术家的名字对其进行排序。未列出的列表如下：
{
artist = "Afro Latin Jazz Orchestra";
id = 10;
},
{
artist = "Avey, Bobby";
id = 17;
},
{
artist = "American Symphony Orchestra";
id = 32;
},
{
artist = "Akpan, Uwem";
id = 97;
},
{
artist = "Austin, Ivy ";
id = 123;
},
{
artist = "American Theatre Orchestra";
id = 153;
},
{
artist = AudraRox;
id = 171;
},
{
artist = "Atlas, James";
id = 224;
},
{
artist = "Alden, Howard";
id = 270;
},
{
artist = Astrograss;
id = 307;
},
{
artist = "Adan, Victor";
id = 315;
},
{
artist = "Alegria, Gabriel";
id = 316;
},
{
artist = "Andersen, Kurt";
id = 412;
},
{
artist = Antares;
id = 420;
},
{
artist = "Austen, Jane ";
id = 426;
},
{
artist = "Acuna, Claudia";
id = 443;
},
{
artist = "Akinmusire, Ambrose";
id = 444;
},
{
artist = "Anderson, Laurie Halse";
id = 559;
},
{
artist = "Alvarez, Javier";
id = 591;
},
{
artist = "Alexander, Jane";
id = 674;
},
{
artist = "Andy Teirstein";
id = 695;
},
{
artist = "Afro-Cuban Jazz Saxtet";
id = 707;
},
{
artist = "Aurora ";
id = 708;
},
{
artist = "Aurora ";
id = 709;
},
{
artist = "August, Gregg ";
id = 715;
},
{
artist = "Aldous, Brian";
id = 777;
},
{
artist = "Anne Enright";
id = 1130;
}
使用描述符
排序后
NSSortDescriptor *sortByName = [NSSortDescriptor sortDescriptorWithKey:@"artist" ascending:YES];
NSArray *sortDescriptors = [NSArray arrayWithObject:sortByName];
sortedArray = [artistArray sortedArrayUsingDescriptors:sortDescriptors];
它将排序后的数组作为
{
artist = "Acuna, Claudia";
id = 443;
},
{
artist = "Adan, Victor";
id = 315;
},
{
artist = "Afro Latin Jazz Orchestra";
id = 10;
},
{
artist = "Afro-Cuban Jazz Saxtet";
id = 707;
},
{
artist = "Akinmusire, Ambrose";
id = 444;
},
{
artist = "Akpan, Uwem";
id = 97;
},
{
artist = "Alden, Howard";
id = 270;
},
{
artist = "Aldous, Brian";
id = 777;
},
{
artist = "Alegria, Gabriel";
id = 316;
},
{
artist = "Alexander, Jane";
id = 674;
},
{
artist = "Alvarez, Javier";
id = 591;
},
{
artist = "American Symphony Orchestra";
id = 32;
},
{
artist = "American Theatre Orchestra";
id = 153;
},
{
artist = "Andersen, Kurt";
id = 412;
},
{
artist = "Anderson, Laurie Halse";
id = 559;
},
{
artist = "Andy Teirstein";
id = 695;
},
{
artist = "Anne Enright";
id = 1130;
},
{
artist = Antares;
id = 420;
},
{
artist = Astrograss;
id = 307;
},
{
artist = "Atlas, James";
id = 224;
},
{
artist = AudraRox;
id = 171;
},
{
artist = "August, Gregg ";
id = 715;
},
{
artist = "Aurora ";
id = 708;
},
{
artist = "Aurora ";
id = 709;
},
{
artist = "Austen, Jane ";
id = 426;
},
{
artist = "Austin, Ivy ";
id = 123;
},
{
artist = "Avey, Bobby";
id = 17;
}
但它仍未完全排序。任何想法如何使用艺术家名称按字母顺序排序。请帮助我！
答案 0 :(得分：-1)
为每个字典值使用for循环集键，例如
for(int i =0;i<[Arr count];i++)
{
[dict setValue:[Arr objectAtIndex:i] forKey:[[Arr objectAtIndex:i] valueForKey:artist]];
}
现在你会得到这样的
Acuna, Claudia = {
artist = "Acuna, Claudia";
id = 443;
}
Adan, Victor = {
artist = "Adan, Victor";
id = 315;
}
Afro Latin Jazz Orchestra = {
artist = "Afro Latin Jazz Orchestra";
id = 10;
}
Afro-Cuban Jazz Saxtet {
artist = "Afro-Cuban Jazz Saxtet";
id = 707;
}
Akinmusire, Ambrose = {
artist = "Akinmusire, Ambrose";
id = 444;
}
NSArray *KeyArr = [dict allKeys];
[KeyArr sortedArrayUsingSelector:@selector(caseInsensitiveCompare:)];
现在你将获得数组中的排序键，使用这个数组你可以通过在alphapet中使用排序键来获得排序的dictionart
for(int i= 0;i<[dict count];i++)
{
NSLog("Test val:%@",[dict valueForKay:[keyArr objectAtIndex:i]]);
}
最后你会得到你现在正在寻找的东西..享受这个编码..
如果您有任何疑问，请随时询问..