multiple buttons scanning barcodes zxing

Question

I am using zxing for scanning barcodes. I need to use 2 buttons for scanning. one will do one task when barcode is scanned and the other will do something else. I want to handle the click like this.

@Override
public void onClick(View v) {

    switch (v.getId()) {

        case R.id.scanone:
            IntentIntegrator scanIntegrator = new IntentIntegrator(this);
            scanIntegrator.initiateScan();
            break;

        case R.id.scantwo:
            IntentIntegrator scanIntegrator = new IntentIntegrator(this);
            scanIntegrator.initiateScan();
            break;

        default:
            break;
    }

}

How can I differentiate which button was called in onActivityResult() method

public void onActivityResult(int requestCode, int resultCode, Intent intent) {}

Answer 1

you may add a class-scope variable that will store the MODE or TYPE you are running, on each button set a different value for this variable, and onActivityResult() based on that variable, you decide how to process the result.

ex,

//class scope
int mode = 0;

onClick will be like this:

@Override
public void onClick(View v) {

    switch (v.getId()) {

        case R.id.scanone:
            mode = 1;
            break;

        case R.id.scantwo:
            mode = 2;
            break;

        default:
            break;
    }

    //starting scanner code is the same, no need to write it in each case:
    IntentIntegrator scanIntegrator = new IntentIntegrator(this);
    scanIntegrator.initiateScan();
}

and onActivityResult:

public void onActivityResult(int requestCode, int resultCode, Intent intent) {

    //if resultCode OK...
    //if scan result not null...

    if(mode == 1){
        doActionOne();
    }else if (mode == 2){
        doActionTwo();
    }
}

you may need this, and you may not:

sometimes, mode value might get lost, because the activity is paused and resumed, so you may want to save the activity state (at least mode) using onSaveInstanceState