To do it You have to create a layout in Your res/layout folder. With name e.g. list_item_layout.xml. In this layout add this:

<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns_android="http://schemas.android.com/apk/res/android"
    android_layout_width="match_parent"
    android_layout_height="match_parent"
    android_gravity="center"
    android_textSize="20sp" />

In this file, You can make custom TextView which You want to display (change font, size etc.). To center text use android:gravity="center"

Next, when You create an ArrayAdapter, use this layout:

adapter = new ArrayAdapter<String>(
    MainActivity.this,
    R.layout.list_item_layout, // here You use created layout
    ListElementsArrayList
);

Result:

I’ve created a stopwatch app when the user clicks the Lap button just gives the current time the timer is at. My problem is text in ListView displays at the left corner. I’m finding it impossible to center the text in my listview. Here I attached my XML and Java code.

activity_main.xml

<RelativeLayout 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"
    tools_context=".MainActivity">

    <TextView
        android_id="@+id/textView"
        android_layout_width="wrap_content"
        android_layout_height="wrap_content"
        android_layout_centerHorizontal="true"
        android_layout_margin="100dp"
        android_text="format"
        android_textSize="40dp"
        android_textStyle="bold" />


    <Button
        android_id="@+id/start"
        android_layout_width="wrap_content"
        android_layout_height="wrap_content"
        android_layout_centerVertical="true"
        android_layout_marginLeft="110dp"
        android_text="Start" />

    <Button
        android_id="@+id/reset"
        android_layout_width="wrap_content"
        android_layout_height="wrap_content"
        android_layout_centerVertical="true"
        android_layout_marginLeft="20dp"
        android_layout_toRightOf="@id/start"
        android_text="Reset" />


    <ListView
        android_id="@+id/listview1"
        android_layout_width="wrap_content"
        android_layout_height="wrap_content"
        android_layout_below="@+id/start"
        android_layout_marginLeft="50dp"
        android_layout_marginTop="9dp"
        android_layout_marginRight="50dp"
        android_stackFromBottom="true"
        android_transcriptMode="alwaysScroll" />


</RelativeLayout>

MainActivity.java:

public class MainActivity extends AppCompatActivity
{
    TextView time;
    Button reset, start;
    ListView listView;
    long startTime, TimeBuff, millisecondsTime, UpdateTime = 0L;
    int seconds, milliseconds, minutes;
    Handler handler;
    List<String> ListElementsArrayList;
    ArrayAdapter<String> adapter;
    String[] ListElements = new String[]{};///creating arrays of string type

    @Override
    protected void onCreate(final Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        time = (TextView) findViewById(R.id.textView);
        start = (Button) findViewById(R.id.start);
        reset = (Button) findViewById(R.id.reset);
        listView = (ListView) findViewById(R.id.listview1);

        handler = new Handler();

        //Getting the list of array
        ListElementsArrayList = new ArrayList<String>(Arrays.asList(ListElements));
        adapter = new ArrayAdapter<String>(MainActivity.this,
                                           android.R.layout.simple_list_item_1,
                                           ListElementsArrayList);

        listView.setAdapter(adapter);
    }
}