由defaultValue引起的将int从活动传递到另一个活动的问题

Question

When I try to pass an int from an activity to another the receiver gets the default value every time.

This is my code from the sender activity

Intent go = new Intent(this,BattleActivity.class);
go.putExtra("Tag", tag);
startActivity(go);

and this is the code from the receiver activity

Intent mIntent = getIntent();
int intValue = mIntent.getIntExtra("Tag", 0);

tagView = (TextView) findViewById(R.id.tag);
tagView.setText("The selected number is " + intValue);

Answer 1

Probably this from :

Intent go = new Intent(this,BattleActivity.class);

Instead, try:

Intent go = new Intent(SenderActivity.this, BattleActivity.class);