Посмотрите на этот пример.
Предположим, что существует 4 EditText
.
EditTextV pin1 = (EditText) indViewById(R.id.pin1);
EditTextV pin2 = (EditText) indViewById(R.id.pin2);
EditTextV pin3 = (EditText) indViewById(R.id.pin3);
EditTextV pin4 = (EditText) indViewById(R.id.pin4);
InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
imm.toggleSoftInput(InputMethodManager.SHOW_FORCED, InputMethodManager.HIDE_IMPLICIT_ONLY);
pin1.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
if (s.toString().trim().length() != 0) // You can specify some specific length here e.g suppose you want length 4 then s.toString().trim().length() != 4
pin2.requestFocus();
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void afterTextChanged(Editable s) {
}
});
pin2.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
if (s.toString().trim().length() != 0)
pin3.requestFocus();
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void afterTextChanged(Editable s) {
}
});
pin3.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
if (s.toString().trim().length() != 0)
pin4.requestFocus();
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void afterTextChanged(Editable s) {
}
});
pin4.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
if (s.toString().trim().length() != 0) {
InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(pin4.getWindowToken(), 0);
}
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void afterTextChanged(Editable s) {
}
});
Возможный дубликат [Android TextField: установить фокус + мягкий вход программно] (http://stackoverflow.com/questions/8080579/android-textfield-set -софт-фокус-вход-программный способ) –