FinalActivity.java

package cards.pay.sample.demo;

import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import androidx.annotation.Nullable;
import androidx.appcompat.app.AppCompatActivity;
import androidx.appcompat.widget.Toolbar;
import android.view.MenuItem;
import android.view.View;

public class FinalActivity extends AppCompatActivity {

    private Toolbar mToolbar;

    @Override
    public void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_final);

        mToolbar = findViewById(R.id.toolbar);
        findViewById(R.id.button_download_sdk).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(Constants.SDK_URL));
                startActivity(intent);
            }
        });

        findViewById(R.id.button_licence).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(Constants.LICENCE_URL));
                startActivity(intent);
            }
        });


        setupToolbar();
    }

    private void setupToolbar() {
        setSupportActionBar(mToolbar);
        getSupportActionBar().setDisplayShowTitleEnabled(false);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
            case android.R.id.home:
                finish();
                break;
            default:
                return super.onOptionsItemSelected(item);
        }
        return true;
    }
}