simpleperf/demo/SimpleperfExampleCpp/app/src/main/java/simpleperf/example/cpp/MainActivity.java


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package simpleperf.example.cpp;

import androidx.appcompat.app.AppCompatActivity;

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

import simpleperf.example.cpp.databinding.ActivityMainBinding;

public class MainActivity extends AppCompatActivity {

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

    private ActivityMainBinding binding;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        binding = ActivityMainBinding.inflate(getLayoutInflater());
        setContentView(binding.getRoot());

        // Example of a call to a native method
        TextView tv = binding.sampleText;
        tv.setText(stringFromJNI());
        createBusyThreadFromJNI();
    }

    public native String stringFromJNI();
    private native void createBusyThreadFromJNI();
}