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Brandon Schoonover
1,456 PointsHow to pass an integer between activities?
So I have two activities. MainActivity and Quiz. in MainAcitivity I use the random generator to get a random integer i call randomNumber.
I would like to then pass that randomNumber value into quiz.
Not sure how to do this....
2 Answers
Liam Peters
8,792 PointsHi Brandon, that is a perfectly valid way to do it, but this can be improved. You can pass in integers directly and retrieve them directly too. No need to go through strings!
//First Activity
Intent i = new Intent(this, SecondActivity.class);
i.putExtra("MY_KEY", 15);
startActivity(i);
//Second Activity
int number = getIntent().getExtras().getInt("MY_KEY");
Note that the first value in the putExtras() method is just a unique identifier and you use the same key to retrieve your integer afterwards!
Brandon Schoonover
1,456 PointsI figured it out from stackoverflow/ http://developer.android.com/guide/components/intents-filters.html
If anyone else is interested:
In the 1stActivity, create a new Intent:
Intent i = new Intent(getApplicationContext(), NewActivity.class); i.putExtra("new_variable_name","value"); startActivity(i);
Then in the 2nd Activity, retrieve those values:
Bundle extras = getIntent().getExtras(); String value = extras.getString("new_variable_name");
Thomas Jaede
Courses Plus Student 7,633 PointsThomas Jaede
Courses Plus Student 7,633 PointsHi Brandon. If you post the code you're asking about, it is much more likely that someone will be able to help you.