In Android: How do I get variables/data from one screen to another?

Question

In android: I\'m trying to take data from one activity/screen to another.

Let\'s say I\'m adding two numbers. I layout my first screen (xml) with 2 EditText views, a

Answer 1

Take a look at the Some Intent examples section (from Common Tasks and How to Do Them in Android):

basically, you use myIntent.putExtra (...) to send data (can be String, Int, Boolean etc) to the other receiving end (the other activity)...

then, result will be passed back into the calling Activity's onActivityResult() method:

protected void onActivityResult(int requestCode, int resultCode, Intent data){
    // See which child activity is calling us back.
    switch (resultCode) {
        case CHOOSE_FIGHTER:
            // This is the standard resultCode that is sent back if the
            // activity crashed or didn't doesn't supply an explicit result.
            if (resultCode == RESULT_CANCELED){
                myMessageboxFunction("Fight cancelled");
            } 
            else {
                myFightFunction(data);
            }
        default:
            break;
    }

H.