How to get null value of Integer class?

Question

Java

I need to pass an Integer type value to another activity, which should be Null by default, but in get ... Extra, there is only getIntExtra which can only get primitive values, without Null. Subject. How do I get my null? If in the default value I should at least insert null.

MainActivity.uris.set(intent.getIntExtra("ids",null), urisis);

on null the studio swears because the method receives primitive type.

Answer 1

Integer is Serializable. Therefore, if you want to transmit in this way, then getIntent().getSerializableExtra()help you. Only on getting, check for null before casting.
But if I were you, I would pass a primitive type, and instead of null, for example, use the default value -1.

Answer 2

It's a little trickier to use Parcelable.
There is more code to write, but complex objects can be transferred.
public class Ride implements Parcelable { ....}
Intent intent = new Intent(context, ReportActivity.class);
intent.putExtra(Ride.class.getCanonicalName(), ride);
context.startActivity(intent);