Zxing scan clarfication

Question

I am currently trying to develop an app with a QR scanner feature, in order to do this i have followed a few tutorials on how to implement it im having some problems.

Trying to make a button that will call upon the scanning feature and i am having a problem. Button button;

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

public void addListenerOnButton() {

    final Context context = this;


    button = (Button) findViewById(R.id.scan);


    button.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {

            if(v.getId()==R.id.scan){
            //scan

                IntentIntegrator integrator = new IntentIntegrator(this);
                integrator.initiateScan();
            }


        }

    });

}

This is what i am using to call upon the command but on the line IntentIntegrator integrator = new IntentIntegrator(this); Its chucking me back an error saying that the constructor is undefined

I got my source code for the "IntentIntegrator" And "IntentResult" from here if you want to look at and if it.

And just a quick side question as far as i believe i am not allowed to change any of the source code, Is this true?

Thanks in advance, Any help is much appreciated.

Answer 1

Try this way. You need to pass current Context to the Constructor.

    IntentIntegrator integrator = new IntentIntegrator(your_activity.this);

Answer 2

please pass MainActivity context instead of Onclick context.

1)IntentIntegrator integrator = new IntentIntegrator(MainActivity.this);

or

2)IntentIntegrator integrator = new IntentIntegrator(context);