focus on second edittext only if first is non-empty android

Question

Currently I have two edit-text,suppose I want to make validation for empty edittext check.What is better way for runtime validation.

My code is;

Answer 1

I have taken on xml having two textboxes and tried this way to solve your issue.

check the below code and tell me is it ok for you?

    setContentView(R.layout.activity_main);
    final EditText password = (EditText)findViewById(R.id.editText1);
    final EditText confirmpassword = (EditText)findViewById(R.id.editText2);

    password.addTextChangedListener(new TextWatcher() {

        public void onTextChanged(CharSequence s, int start, int before, int count) {
            if(password.getText().toString().trim().length()==0)
            {
                confirmpassword.setText("");
            }
        }

        public void beforeTextChanged(CharSequence s, int start, int count,
                int after) {
        }

        public void afterTextChanged(Editable s) {
        }
    });
    confirmpassword.setOnFocusChangeListener(new OnFocusChangeListener() {

        public void onFocusChange(View v, boolean hasFocus) {
            if(hasFocus && password.getText().toString().trim().length()==0)
            {
                // First fill password
                password.requestFocus();
            }
        }
    });

Answer 2

    final EditText ev1 = (EditText) findViewById(R.id.editText1);
    final EditText ev2 = (EditText) findViewById(R.id.editText2);

    ev1.setOnFocusChangeListener(new OnFocusChangeListener() {      
        @Override
        public void onFocusChange(View rv, boolean hasFocus) {
            if(!hasFocus && ev1.getText().length()==0)
            {    
                  new Handler().postDelayed(new Runnable() {

                  @Override
                  public void run() {
                       ev2.clearFocus();
                   ev1.requestFocus();

                  }
            }, 100);

         }
      }
    });

Answer 3

Try this :

EDIT :

        final EditText ev1,ev2,ev3,ev4,ev5,ev6;

        ev1 = (EditText) findViewById(R.id.editText1);
        ev2 = (EditText) findViewById(R.id.editText2);
        ev3 = (EditText) findViewById(R.id.editText3);
        ev4 = (EditText) findViewById(R.id.editText4);
        ev5 = (EditText) findViewById(R.id.editText5);
        ev6 = (EditText) findViewById(R.id.editText6);

        setValidateAction(ev2);
        setValidateAction(ev3);
        setValidateAction(ev4);
        setValidateAction(ev5);
        setValidateAction(ev6);

Declare this method :

public void setValidateAction(final EditText edit_action) {
        edit_action.setOnFocusChangeListener(new OnFocusChangeListener() {
            public void onFocusChange(View v, boolean hasFocus) {
                if(hasFocus && ev1.getText().length()==0){    
                    ev1.requestFocus();               
                }
            }
        });
}            

Thanks.