(iPhone/iPad开发)NSData与NSArray互相转换

NSArray 转 NSData

NSArray *arr = [NSArray arrayWithArray:[dicMaterial objectForKey:SERVICE_ORDER]];                NSLog(@"order*****:%@",arr);                NSData *mDataOrder = [NSKeyedArchiver archivedDataWithRootObject:[dicMaterial objectForKey:SERVICE_ORDER]];

NSData转NSArray

NSArray *mArrayTmp = [NSKeyedUnarchiver unarchiveObjectWithData:mMaterial.order];