Hi,
Can you double-check the id of the Button? I don't think it's being found.
Cheers,
James
On Fri, Oct 2, 2009 at 3:18 PM, sbruno74 <sbrun...@gmail.com> wrote:
>
> It doesn't work. And I had to declare usernameView and passwordView
> final in order to access them from within the inner class. It still
> gives me the same error, and using logcat, it says it is a null
> pointer exception on the line where I call setOnClickListener().
>
> On Oct 2, 2:31 pm, Android_n00b <nikhil...@gmail.com> wrote:
> > Try this and let me know if it works:
> >
> > public void onCreate(Bundle savedInstanceState) {
> > super.onCreate(savedInstanceState);
> > setContentView(R.layout.main);
> > Button loginButton = (Button) findViewById(R.id.login);
> > EditText usernameView = (EditText)
> > findViewById
> > (R.id.username);
> > EditText passwordView = (EditText)
> > findViewById
> > (R.id.password);
> > loginButton.setOnClickListener(new View.OnClickListener() {
> > public void onClick(View v) {
> > mUsername = usernameView.getText().toString
> > ();
> > mPassword = passwordView.getText().toString
> > ();
> > if (verifyLogin()) {
> > callHome();
> > }
> > }
> > });
> > }
> >
> > On Oct 2, 12:15 pm, sbruno74 <sbrun...@gmail.com> wrote:
> >
> >
> >
> > > Hello,
> >
> > > I am working on a simple application that, for now, just presents a
> > > login page as the starting activity with username and password and a
> > > login button. When you click on the login button, it starts a new
> > > activity after verifying credentials. When I run the application in
> > > the emulator, it stops unexpectedly without even showing the main
> > > activity with this error message : The application ... has stopped
> > > unexpectedly. Please try again later.
> >
> > > It seems that it is the code where I register a listener for the
> > > button click that causes the crash because when I comment the code, at
> > > leas the application starts normally. I can't find the error. Here's
> > > my onCreate method where I register the listener:
> >
> > > public void onCreate(Bundle savedInstanceState) {
> > > super.onCreate(savedInstanceState);
> > > setContentView(R.layout.main);
> >
> > > Button loginButton = (Button) findViewById(R.id.login);
> >
> > > loginButton.setOnClickListener(new View.OnClickListener() {
> > > public void onClick(View v) {
> > > EditText usernameView = (EditText) findViewById
> > > (R.id.username);
> > > EditText passwordView = (EditText) findViewById
> > > (R.id.password);
> > > mUsername = usernameView.getText().toString();
> > > mPassword = passwordView.getText().toString();
> > > if (verifyLogin()) {
> > > callHome();
> > > }
> > > }
> > > });
> > > }
> >
> > > For now, verifyLogin() does nothing and just returns true. The callHome
> > > () method just builds an intent, registers username and password as
> > > extras and starts the other activity with the intent.
> >
> > > When I comment the setOnClickListener() call, I do not get the error.
> >
> > > Please what did I do wrong?
> >
> > > I run eclipse 3.5 with the ADT plugin on Windows Vista 64-bit.
> >
> > > Stéphane
> >
>
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