import androidx.appcompat.app.AppCompatActivity;
import androidx.core.content.ContextCompat;
import android.os.Bundle;
import android.view.Window;
import android.view.WindowManager;
public class MainActivity extends AppCompatActivity {
   @Override
   protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.activity_main);

      Window window = MainActivity.this.getWindow();
      window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
      window.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
      window.setStatusBarColor(ContextCompat.getColor(MainActivity.this, R.color.colorAccent));
   }
}