Hi,
Am a total beginner and I was trying out to extrapolate on the Hello
Android code, but I've sort of hit a road block with a null pointer
exception. The code is as below:
public class HelloAndroid extends Activity
{
@Override
public void onCreate(Bundle icicle)
{
super.onCreate(icicle);
setContentView(R.layout.screen1);
Button btn = (Button) findViewById(R.id.hellobtn);
btn.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
setContentView(R.layout.screen2);
}
});
}
}
As soon as I run this, the emulator gives me a null pointer exception.
The res/layout/screen1.xml and res/layout/screen2.xml are working
perfectly fine because when I just run
setContentView(R.layout.screen1) without the onClickListener, both the
screens work fine.
I suppose the null pointer exception pops in the onClick function.
Pls help!!
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