iOS给Model排序

今天有朋友问我怎么给Model排序,我顺便写了一个,伸手党直接复制吧.

Person *per = [[Person alloc] init];

per.name = @"z";

per.age = 89;

Person *per1 = [[Person alloc] init];

per1.name = @"h";

per1.age = 18;

Person *per2 = [[Person alloc] init];

per2.name = @"l";

per2.age = 44;

NSMutableArray *array = [NSMutableArray array];

[array addObject:per];

[array addObject:per1];

[array addObject:per2];

NSArray *resultArray = [array sortedArrayUsingComparator:^NSComparisonResult(id obj1, id obj2) {

Person *per1 = obj1;

Person *per2 = obj2;

if (per1.age > per2.age) {

return NSOrderedDescending;//降序

}else if (per1.age < per2.age)

{

return NSOrderedAscending;//升序

}else

{

return NSOrderedSame;//相等

}

}];

for (Person *per in resultArray) {

NSLog(@"per.age = %ld",per.age);

}