IOS游戏中心成就

Question

如何通过NSCoding协议保存未上传的成就？

Answer 1

if ( ! [NSKeyedArchiver archiveRootObject: myInterestingObject
                   toFile: reallyCoolArchivePath ] ) {      
    NSLog(@" archiver write failed.");
} else {
    NSLog(@" archiver write SUCCEEDED.");
}

使用NSKeyedUnarchiver取回它们。