Question

I need some help in my application. I have these classes:

Ajuda.class:

public class Ajuda extends Activity {
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.ajuda);
    }
}

testes.class:

public class teste extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
    }
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        MenuInflater inflater = getMenuInflater();
        inflater.inflate(R.menu.menu, menu);
        return true;
    }

    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
        case R.id.mnuAjuda:
            Intent i = new Intent (this.getApplicationContext(),
                                   Ajuda.class);
            this.startActivity(i);
            return true;
        default: return super.onOptionsItemSelected(item);
        }
    }
}

On method onOptionsItemSelected in case R.id.mnuAjuda: if I got

Intent i = new Intent (this.getApplicationContext(),  
    Ajuda.class);  
    this.startActivity(i);

instead of

setContentView(R.layout.ajuda);

the application stop unexpectdly and I dont know why.

Answer 1

Did you put something like

<activity android:name=".Ajuda" android:label="Ajuda" />

in AndroidManifest.xml?