How to change the focus to next edit text in android?

Try TextWatcher instead of onKeyListener

B'coz if want to edit your password, in that case TextWatcher will give you more method to dealt with..

Edited:-

StringBuilder sb=new StringBuilder();

         edtPasscode1.addTextChangedListener(new TextWatcher() {
             public void onTextChanged(CharSequence s, int start, int before, int count) {
                 // TODO Auto-generated method stub
                 if(sb.length()==0&edtPasscode1.length()==1)
                 {
                     sb.append(s);
                     edtPasscode1.clearFocus();
                     edtPasscode2.requestFocus();
                     edtPasscode2.setCursorVisible(true);

                 }
             }

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

                 if(sb.length()==1)
                 {

                     sb.deleteCharAt(0);

                 }

             }

             public void afterTextChanged(Editable s) {
                 if(sb.length()==0)
                 {

                     edtPasscode1.requestFocus();
                 }

             }
         });

Hope this work.

set android:maxLength="1" to all your ExitText in xml

Try the following code

edtxt1 = (EditText) findViewById(R.id.edtxt_phonenumber_one);
        edtxt2 = (EditText) findViewById(R.id.edtxt_phonenumber_two);
        edtxt3 = (EditText) findViewById(R.id.edtxt_phonenumber_three);

        edtxt1.addTextChangedListener(new TextWatcher() {
            public void afterTextChanged(Editable s) {

                if (s.length() ==1) {
                    edtxt2.requestFocus();
                }

            }

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

            public void onTextChanged(CharSequence s, int start, int before,
                    int count) {
            }
        });

        edtxt2.addTextChangedListener(new TextWatcher() {
            public void afterTextChanged(Editable s) {
                if (s.length() == 1) {
                    edtxt3.requestFocus();
                }

            }

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

            }

            public void onTextChanged(CharSequence s, int start, int before,
                    int count) {

            }
        });
        edtxt3.addTextChangedListener(new TextWatcher() {
            public void afterTextChanged(Editable s) {
                if (s.length() == 1) {
                    edtxt1.requestFocus();
                }

            }

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

            }

            public void onTextChanged(CharSequence s, int start, int before,
                    int count) {

            }
        });

This should work