Android QR reader with Zxing

Question

When I read Qr code, textView doesn't change.(Question 1) What is the problem ?

public class MainActivity extends AppCompatActivity implements ZXingScannerView.ResultHandler{


private Button buton;
private TextView textView;
private ZXingScannerView myview;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    buton = (Button)findViewById(R.id.button);
    textView = (TextView)findViewById(R.id.textView);
    buton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            myview = new ZXingScannerView(MainActivity.this);

            myview.setResultHandler(MainActivity.this);
            setContentView(myview);
            myview.startCamera();


        }
    });

}

@Override
protected void onPause() {
    super.onPause();
    myview.stopCamera();
}

@Override
public void handleResult(Result result) {

    setContentView(R.layout.activity_main);
    textView.setText(result.getText().toString());
    myview.stopCamera();


}
}

And when I finished reading Qr code,I want to start new activty with result. (Question 2) How I do it ? Will this code work ?

@Override
public void handleResult(Result result) {
    myview.stopCamera();
    Intent intent = new Intent(getApplicationContext(),SecondActivty.class);
    intent.putExtra("Result",result);
    startActivity(intent);


}

If it doesn't, how should I fix it ?

Answer 1

Remove setContentView(R.layout.activity_main); from handleResult. You're replacing the view that you have references to with a new view.

As for communicating the Result over intent, as is, what you have will not work. Result does not inherit from Parcelable, and you can't just stick it in an intent and expect it to work. Better would be to get all relevant info from the Result and put it in the Intent as a String.