how to remove label from application

Issue

i made my first app today using an application named "A.I.D.E". i am an android user and its my first time making an app, how can i remove my app name and lable from the top of the main screen? i named my app "YT Studio" but i dont want to show this name and lable on top of my main screen, i want it to be blank, can someone help me? i gave you my android manifest.xml and main.java file for the reference, i would love to edit my question for more help in future.

android manifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.ojhastudios.ytstudio" >

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="YT Studio"
        android:theme="@style/AppTheme"
        android:resizeableActivity = "true">
        <activity
            android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

main.xml

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

    <TextView
        android:text="@string/hello_world"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="30dp" />

</LinearLayout>

edit: one fellow asked me for code, there you go

package com.mycompany.myapp;

import android.app.*;
import android.os.*;

public class MainActivity extends Activity 
{
    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        getSupportActionBar().hide();
    }
}

Solution

You can just call

getSupportActionBar().hide();

in your activity's onCreate() method.

Edit

---

The method given above does not work when using AndroidX activity. It works with AppCompatActivity.

So, this answer will do the task.

In your AndroidManifest.xml, find your activity and then you should add this line in it:

<application>
   ...
   <activity
      android:name=".MainActivity"
      android:theme="@style/Theme.MaterialComponents.Light.NoActionBar">
         ...
   </activity>
   ...
</application>

Answered By - Sambhav Khandelwal