Question

I received a return value from SQLite fetch

int primaryKey = sqlite3_column_int(statement, 0);

and I’m going to use it as a selector’s object:

[[ABC alloc] performSelector:@selector(abcWithAAA:) withObject:[NSNumber numberWithInt:primaryKey]];

the NSLog result for primarykey is a number 4:

NSLog(@"primaryKey：%i",primaryKey);
4

but the NSLog result for [NSNumber numberWithInt:primaryKey] is 131628896.

why? and how do i convert the int value correctly?

Thanks!

Answer 1

131628896 is the memory address of the NSNumber object.

use:

- (void)abcWithAAA: (NSNumber *)number {
      int primaryKey = [number intValue];
      NSLog("%i", primaryKey);
}