vsad93/QR-Scanner-Main-Activity

package com.appnucleus.barcodeandqrscanner;

import android.app.Activity; import android.app.AlertDialog; import android.content.ActivityNotFoundException; import android.content.DialogInterface; import android.content.Intent; import android.net.Uri; import android.os.Bundle; import android.view.View; import android.widget.Toast;

public class Activity_Main extends Activity { static final String ACTION_SCAN = "com.google.zxing.client.android.SCAN";

@Override
public void onCreate(Bundle savedInstanceState)
{
    super.onCreate(savedInstanceState);
    //set the main content layout of the Activity
    setContentView(R.layout.activity_main);
}

//product barcode mode
public void scanBar(View v)
{
    try
    {
        //start the scanning activity from the com.google.zxing.client.android.SCAN intent
        Intent intent = new Intent(ACTION_SCAN);
        intent.putExtra("SCAN_MODE", "PRODUCT_MODE");
        startActivityForResult(intent, 0);
    }
    catch (ActivityNotFoundException anfe)
    {
        //on catch, show the download dialog
        showDialog(Activity_Main.this, "No Scanner Found", "Download a scanner code activity?", "Yes", "No").show();
    }
}

//product qr code mode
public void scanQR(View v)
{
    try
    {
        //start the scanning activity from the com.google.zxing.client.android.SCAN intent
        Intent intent = new Intent(ACTION_SCAN);
        intent.putExtra("SCAN_MODE", "QR_CODE_MODE");
        startActivityForResult(intent, 0);
    }
    catch (ActivityNotFoundException anfe)
    {
        //on catch, show the download dialog
        showDialog(Activity_Main.this, "No Scanner Found", "Download a scanner code activity?", "Yes", "No").show();
    }
}

//alert dialog for downloadDialog
private static AlertDialog showDialog(final Activity act, CharSequence title, CharSequence message, CharSequence buttonYes, CharSequence buttonNo)
{
    AlertDialog.Builder downloadDialog = new AlertDialog.Builder(act);
    downloadDialog.setTitle(title);
    downloadDialog.setMessage(message);
    downloadDialog.setPositiveButton(buttonYes, new DialogInterface.OnClickListener()
    {
        public void onClick(DialogInterface dialogInterface, int i) {
            Uri uri = Uri.parse("market://search?q=pname:" + "com.google.zxing.client.android");
            Intent intent = new Intent(Intent.ACTION_VIEW, uri);
            try
            {
                act.startActivity(intent);
            }
            catch (ActivityNotFoundException anfe)
            {

            }
        }
    });
    downloadDialog.setNegativeButton(buttonNo, new DialogInterface.OnClickListener()
    {
        public void onClick(DialogInterface dialogInterface, int i)
        {
        }
    });
    return downloadDialog.show();
}

//on ActivityResult method
public void onActivityResult(int requestCode, int resultCode, Intent intent)
{
    if (requestCode == 0)
    {
        if (resultCode == RESULT_OK)
        {
            //get the extras that are returned from the intent
            String contents = intent.getStringExtra("SCAN_RESULT");
            String format = intent.getStringExtra("SCAN_RESULT_FORMAT");
            Toast toast = Toast.makeText(this, "Content:" + contents + " Format:" + format, Toast.LENGTH_LONG);
            toast.show();
        }
    }
}

}