Android -- How To Deal When Pressing Buttons And Taking Results -- Updated-->buttons Don't Responds

I want in the first screen to have two buttons and when the user clicks one of them ,then he will go to another screen with other buttons.I am not sure how to handle this. My main

Solution 1:

From what I understand you're just taking input from a single EditText field. Using a second Activity can work but is a bit overkill for just doing this task. You may find it easier to use something like a Dialog http://developer.android.com/guide/topics/ui/dialogs.html

However this is just another way to approach your question. To answer your question specifically you would use:

Declare this above:

privatestaticfinalint ACTIVITY_RESULT = 0;

Use this instead of startActivity(i);

startActivityForResult(i, ACTIVITY_RESULT);

and you can then capture the result using:

publicvoidonActivityResult(int requestCode, int resultCode, Intent intent){
    if (requestCode == ACTIVITY_RESULT) {
        if (resultCode == RESULT_OK) {
                        //Do stuff to captured result.
                    }
            }
    }

Solution 2:

My mistake was in the

publicclassRadiationextendsActivityimplementsOnClickListener {
View select_cores;
View select_mass;

/** Called when the activity is first created. */@OverridepublicvoidonCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    //Set up click listeners
    select_cores=(View) findViewById(R.id.select_cores);
    select_cores.setOnClickListener(this);
    select_mass=(View) findViewById(R.id.select_mass);
    select_mass.setOnClickListener(this);
}

where i had "View num_cores" i changed to "View select_cores" and now works fine!