Keep holding on... by implementing onLongClickListener (Updated with androidx package)

With the help of onLongClickListener method one can use the button for two different purposes.

-------------This goes in the main.xml file--------------

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="#018786"
    android:gravity="center">

    <Button
        android:text="Hold me for a long time!"
        android:id="@+id/lca_longClickBtn"
        android:layout_marginTop="30dp"
        android:gravity="center"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"/>

    <TextView
        android:id="@+id/lca_resultTV"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:textSize="20dp"
        android:textColor="#ffffff"/>
</LinearLayout>

----------------------------------------------------------

-----------------MyActivity.java file's content----------------

package com.app.yourappname;

import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

import androidx.appcompat.app.AppCompatActivity;

public class LongClickActivity extends AppCompatActivity implements View.OnClickListener, View.OnLongClickListener {
    private TextView tv;
    private Button btn;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.long_click_activity);
        tv = findViewById(R.id.lca_resultTV);
        btn = findViewById(R.id.lca_longClickBtn);
        btn.setOnClickListener(this);
        btn.setOnLongClickListener(this);
    }

    @Override
    public boolean onLongClick(View v) {
        tv.setText("This is a LONG click!");
        return true;
    }

    @Override
    public void onClick(View v) {
        tv.setText("This is a SIMPLE click!");
    }
}

-------------------------------------------------------------

In the manifest, declare the Activity:

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

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".LongClickActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>