MDTEST

package com.example.hellocmakedemo1;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity {

    // Used to load the 'native-lib' library on application startup.
    static {
 System.loadLibrary("native-lib");
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_main);

 // Example of a call to a native method
 TextView tv = findViewById(R.id.sample_text);
 tv.setText(stringFromJNI());
    }

    
    public native String stringFromJNI();
}