Scroll when focusing on a JAVA X Component

Well, I think I have a good answer. First I have my Layout 'activity_main.xml'

<?xml version="1.0" encoding="utf-8"?>

<EditText
    android:id="@+id/editText"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginTop="24dp"
    android:ems="10"
    android:inputType="textPersonName"
    android:text="Name" />

<TextView
    android:id="@+id/text"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginTop="205dp"
    android:layout_marginBottom="400dp"
    android:text="Texto"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toTopOf="parent" />

<Button
    android:id="@+id/button"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginBottom="17dp"
    android:text="Mi Botón"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent" />

Now in the MainActivity I initialize my Widgets.

scrollView - editText - textView - button

We set a listenerfor the editText

editText = (EditText)findViewById(R.id.editText);
    editText.setOnFocusChangeListener(new View.OnFocusChangeListener() {
        @Override
        public void onFocusChange(View v, boolean hasFocus) {
            if (!hasFocus){
                //almacenamos aquí el dispositivo que estamos utilizando para introducir información.
                InputMethodManager miTeclado = (InputMethodManager)getSystemService(INPUT_METHOD_SERVICE);
                //establecemos un scroll en pantalla
                scrollView.scrollTo(20, 300);
                //Ocultamos el teclado
                miTeclado.hideSoftInputFromWindow(editText.getWindowToken(), InputMethodManager.HIDE_IMPLICIT_ONLY);
            }
        }
    });

There we have given a scroll to the screen when we do not have the Focus on the EditText.

Extra. Remove Focus when keyboard Enter is pressed. We create an inner class in the MainActivity that does that work.

class EventoTeclado implements TextView.OnEditorActionListener {

    @Override
    public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
        if (actionId == EditorInfo.IME_ACTION_DONE){ //Si se ha ocultado el teclado porque hemos pulsado el ok
            editText.clearFocus();
        }

        return false;
    }
}

We go to onCreateours MainActivityand instantiate this class.

EventoTeclado eventoTeclado = new EventoTeclado();

We listen for our editText to take effect.

editText.setOnEditorActionListener(eventoTeclado);

Added new method to get button position

private Point obtenerPosicionDeLaVista(View view){
        int[] localizaccion = new int[2];
        view.getLocationInWindow(localizaccion);
        return new Point(localizaccion[0], localizaccion[1]);
    }

And now I call him...

editText.setOnFocusChangeListener(new View.OnFocusChangeListener() {
        @Override
        public void onFocusChange(View v, boolean hasFocus) {
            if (!hasFocus){
                //almacenamos aquí el dispositivo que estamos utilizando para introducir información.
                InputMethodManager miTeclado = (InputMethodManager)getSystemService(INPUT_METHOD_SERVICE);
                //establecemos un scroll en pantalla
                Point point = obtenerPosicionDeLaVista(button);
                scrollView.scrollTo(point.x, point.y);
                //Ocultamos el teclado
                miTeclado.hideSoftInputFromWindow(editText.getWindowToken(), InputMethodManager.HIDE_IMPLICIT_ONLY);
            }
        }
    });

PS That's all folks :)

Add this in the xml of your manifest:

android:windowSoftInputMode="adjustResize"

The above works if there is enough space to "shrink". Otherwise try the following code that ontouch in the last ediText scrolls down:

tuUltimoEditText.setOnTouchListener(new View.OnTouchListener()
        {
            public boolean onTouch(View arg0, MotionEvent arg1)
            {
                ScrollView sv = (ScrollView)findViewById(R.id.scrollView);
                sv.scrollTo(0, sv.getBottom());
                return false;
            }
        });

In the xml all the views must be inside the relative or linearlayout and this in turn of ScrollView

In order to do this, you have to give the ScrollView an id and then call the ScrollView's scroll method.

This is the definition of the scroll method:

scrollTo(int x, int y)
Set the scrolled position of your view.

This version also clamps the scrolling to the bounds of our child.

This information is obtained from: https://developer.android.com/reference/android/widget/ScrollView.html

If you want to scroll it to "bottom", you would have to call the method like this:

ScrollView sv = (ScrollView)findViewById(R.id.scrollView);
sv.scrollTo(0, sv.getBottom());

This answer is taken from: https://stackoverflow.com/questions/6438061/can-i-scroll-a-scrollview-programmatically-in-android