Как открыть клавиатуру Android без xml

package ${YYAndroidPackageName};
 
import android.util.Log;
import java.io.File;
import java.io.FileReader;
import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.lang.String;
 
import ${YYAndroidPackageName}.R;
import android.content.Context;
import android.view.View;
import android.view.inputmethod.InputMethodManager;
import android.widget.EditText;
 
import com.yoyogames.runner.RunnerJNILib;
 
public class Gamecode_Android_Keyboard extends ActionBarActivity {
    EditText editInput;
  public void show_keyboard(View v){
    InputMethodManager mgr=(InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
    mgr.showSoftInput(editInput,InputMethodManager.SHOW_IMPLICIT);
  }
  
    /*public void show_keyboard(){
    EditText txtName = (EditText) findViewById(R.id.txtName);
    InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
    // only will trigger it if no physical keyboard is open
    inputMethodManager.showSoftInput(txtName, InputMethodManager.SHOW_IMPLICIT);
    return txtName;
    }*/
}

public class MainActivity extends Activity {
 
    InputMethodManager imm;
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
    }
 
 
    public void showKeyboard(View view) {
        imm.toggleSoftInput(0, 0);
    }
 
    public void hideKeyboard(View view) {
        imm.toggleSoftInput(0, 0);
 
    }
}