Align the text to center in ListView - android-studio

Question

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);
}
}

Answer 1

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: