学科:IOS/KB/变量类型转换
< Subject:IOS | KB
| 待转换类型 | 目标类型 | 方法 | 备注 |
|---|---|---|---|
| NSString | 整型(int, integerValue) | [NSString intValue], [NSString integerValue] | |
| NSNumber | NSString | [NSNumber stringValue] | |
| NSDate | NSDateComponents | [NSCalendar dateFromComponents:] | |
| NSDateComponents | NSDate | [NSCalendar components:fromDate:], ⋯⋯ | |
| NSData | NSObject<NSCoding> | NSKeyedUnarchiver | |
| NSDictionary/NSArray | NSData（plist格式） | [NSPropertyListSerialization dataWithPropertyList:format:options:error:] | |
| NSData（plist格式） | NSDictionary/NSArray | [NSPropertyListSerialization propertyListWithData:options:format:error:] | |
| NSObject<NSCoding> | NSData | NSKeyedArchiver | |
| UIImage | NSData | UIImagePNGRepresentation(), UIImageJPEGRepresentation() | 不转换类型还是用 NSKeyedArchiver |
| Core Data Transformable Attribute | id | NSValueTransformer |