int ramdomnumber = arc4random_uniform(900000) + 100000;
[[NSUserDefaults standardUserDefaults] setObject:ramdomnumber forKey:@"contactno"];
[[NSUserDefaults standardUserDefaults] synchronize];
我想上面的代码,但它显示与ARC不允许的。可有人建议我如何存储在该NSUserDefaults的int值一样“诠释”到“id_nullable”的隐式转换的错误。如何将整数值存储到目标c中的NSUserdefaults?
int ramdomnumber = arc4random_uniform(900000)+ 100000; [[NSUserDefaults standardUserDefaults] setObject:@(ramdomnumber)forKey:@“contactno”]; [[NSUserDefaults standardUserDefaults] synchronize]; –