如何使用目标C中的Nspredicate过滤2个值之间的数组?我想通过名称或版本过滤数组

Question

(void)filterListForSearchText:(NSString *)searchText
    {
        NSPredicate *filterPredicate = [NSPredicate 
    predicateWithFormat:@"SELF.name contains[cd]%@" ,searchText];
        self.searchResults = [NSMutableArray arrayWithArray:[self.devices 
    filteredArrayUsingPredicate:filterPredicate]];
        [self.tableView reloadData];
    }

self.device log是:::

数组是

 (
    "<NSManagedObject: 0x7ffa32caab60> (entity: Device; id: 
0xd000000000080000 <x-coredata://7EE6EBA4-6F15-49D8-B994-2E02379A75CD
/Device/p2> ; data: {n    company = c1;n    name = apple;n    version = 
v1;n})",
    "<NSManagedObject: 0x7ffa32cb4100> (entity: Device; id: 0xd0000000000c0000 <x-coredata://7EE6EBA4-6F15-49D8-B994-2E02379A75CD/Device/p3> ; data: {n    company = "com 2";n    name = asad;n    version = v2;n})",
    "<NSManagedObject: 0x7ffa32cb4160> (entity: Device; id: 
0xd000000000100000 <x-coredata://7EE6EBA4-6F15-49D8-B994-2E02379A75CD
/Device/p4> ; data: {n    company = "company 3";n    name = abbas;n 
   version = v3;n})",
    "<NSManagedObject: 0x7ffa32ca8810> (entity: Device; id: 
0xd000000000140000 <x-coredata://7EE6EBA4-6F15-49D8-B994-2E02379A75CD
/Device/p5> ; data: {n    company = ccc;n    name = pakistan;n    version
 = vvv;n})",
    "<NSManagedObject: 0x7ffa32ca8870> (entity: Device; id: 
0xd000000000180000 <x-coredata://7EE6EBA4-6F15-49D8-B994-2E02379A75CD
/Device/p6> ; data: {n    company = bbyiww;n    name = pine;n    version 
= vvvrre;n})"
)

Answer 1

您可以像：

一样实现它

NSPredicate *predicate =[NSPredicate predicateWithFormat:@"(value1 != 0) AND (value2 == %@)", [NSNumber numberWithBool:YES]];

或

NSPredicate *predicate = 
    [NSPredicate predicateWithFormat:@"value1 contains[cd] %@ OR value2 contains[cd] %@", value1, value2];

Answer 2

像这样更改谓词

NSPredicate *filterPredicate = [NSPredicate predicateWithFormat:@"SELF.name contains[cd]%@ and SELF.version = %@" ,searchText, versionNo];
self.searchResults = [NSMutableArray arrayWithArray:[self.devices filteredArrayUsingPredicate:filterPredicate]];
[self.tableView reloadData];