Question

I am Android Newbie here I do not know how to pass the selected spinner text to pass to SMS as SMS text to send to selected number by pressing a button. I am happy if someone can teach me here.

public class MainActivity extends Activity { //all starts here
    String[] location;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        location = getResources().getStringArray(R.array.location_array);
        Spinner s1 = (Spinner) findViewById(R.id.spinner1);
        ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_single_choice, location);
        s1.setAdapter(adapter);
        s1.setOnItemSelectedListener(new OnItemSelectedListener()
        {
            public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2, long arg3)
            {
                int index = arg0.getSelectedItemPosition();
                Toast.makeText(getBaseContext(), "You have selected " + location[index], Toast.LENGTH_SHORT).show();

            }

            public void onNothingSelected(AdapterView<?> arg0){}

        });
    }

        public void onClick(View v) {          //<--**HERE IS THE PROBLEM**
        sendSMS("5556", "+location [index]"); //<--**HERE IS THE PROBLEM**
    }



    //?sends an SMS message to another device?
    private void sendSMS(String phoneNumber, String message)
    {
        SmsManager sms = SmsManager.getDefault();
        sms.sendTextMessage(phoneNumber, null, message, null, null);
    }

}

//-must end here

Answer 1

First Save Selected value in one String Variable and then Send into SMS and another option is declare int index variable outside onItemSelected() function, sorry for my bad english communication but it will solve your problem, please see below link for more information.

Spinners in Android

and Use below code instead of your code.

public class MainActivity extends Activity { //all starts here
    String[] location;
    int index;
    String mSelectedItem;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        location = getResources().getStringArray(R.array.location_array);
        Spinner s1 = (Spinner) findViewById(R.id.spinner1);
        ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_single_choice, location);
        s1.setAdapter(adapter);
        s1.setOnItemSelectedListener(new OnItemSelectedListener()
        {
            public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2, long arg3)
            {
                index = arg0.getSelectedItemPosition();
                //OR you can also store selected item using below line.
                mSelectedItem=arg0.getSelectedItem().toString();
                Toast.makeText(getBaseContext(), "You have selected " + location[index], Toast.LENGTH_SHORT).show();
            }

            public void onNothingSelected(AdapterView<?> arg0){

            }

        });
    }

    public void onClick(View v) {
        sendSMS("5556", location [index]);
        //OR you can also send sms using below code.
        sendSMS("5556", mSelectedItem);
    }    

    //?sends an SMS message to another device?
    private void sendSMS(String phoneNumber, String message)
    {
        SmsManager sms = SmsManager.getDefault();
        sms.sendTextMessage(phoneNumber, null, message, null, null);
    }
}