Scrollable vertically and horizontally EditText that doesn't automatically break text to the next line

Question

I need an activity that look like a simple text editor:
full-screen EditText with submit button below it.

Important:
1. EditText has to scroll both verti

Answer 1

EditText actually has scrolling already built in, so you don't have to use a ScrollView. The only thing is that it doesn't support flings.

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <EditText
        android:id="@+id/some_edittext"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:gravity="top|left"
        />

    <Button
        android:id="@+id/submit_button"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Submit"/>

</LinearLayout>

To stop the automatic wrapping, you can activate horizontal scrolling:

EditText editText = (EditText) findViewById(R.id.some_edittext);
editText.setHorizontallyScrolling(true);
editText.setMovementMethod(new ScrollingMovementMethod());

Answer 2

I think you could set your EditText attribute android:maxLines="1" initially.

And when "new line" button is clicked, you can increase that value programmatically using setMaxLines(int) method.

EditText.setMaxLines(int) 

here's the doc -> link

Hope this helped.