<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical"

    >

    <TextView

        android:id="@+id/ttv1"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:text="This is a test"

        android:textColor="#5500FF"

        android:textSize="32sp"

        android:padding="10dp"

        />

</LinearLayout>

package com.example.test;

import android.graphics.Paint;

import android.os.Bundle;

import android.widget.TextView;

import androidx.appcompat.app.AppCompatActivity;

public class TestTextViewActivity extends AppCompatActivity {

    private TextView mtv1;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_text_view);

        mtv1 = findViewById(R.id.ttv1);

        mtv1.getPaint().setFlags(Paint.STRIKE_THRU_TEXT_FLAG); // set strike through style in the text

        mtv1.getPaint().setAntiAlias(true); // get rid of the zigzag effect

    }

}

package com.example.test;

import android.content.Intent;

import android.os.Bundle;

import android.view.View;

import android.widget.Button;

import androidx.appcompat.app.AppCompatActivity;

public class MainActivity extends AppCompatActivity {

    private Button mBtnTextView;  // define a text view button

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        mBtnTextView = findViewById(R.id.btnTextView1);  // get the button, it is in activity_main.xml

        mBtnTextView.setOnClickListener(new View.OnClickListener() {

            public void onClick(View view) {

                Intent intent = new Intent(MainActivity.this, TestTextViewActivity.class);

                startActivity(intent);

            }

        });

    };

}

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical"

    >

    <Button

        android:id="@+id/btnTextView1"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:text="TestTextView"

        />

</LinearLayout>

<activity android:name=".TestTextViewActivity"/>