如何从导航抽屉的片段移动到 Android Studio 上的活动？

Question

So, this is my first question here. I am doing a project on Android Studio and I cannot seem to move from a fragment of a navigation drawer activity to one another. I've tried the solutions provided here earlier such as using:-

Intent i = new Intent(getActivity(), Main3Activity.class);

startActivity(i);

The intent keeps taking me to MainActivity instead of Main3Activity. Here's my DetectFragment.java code:-

public class DetectFragment extends Fragment {

private DetectViewModel detectViewModel;

public View onCreateView(@NonNull LayoutInflater inflater,
                         ViewGroup container, Bundle savedInstanceState) {
    detectViewModel =
            ViewModelProviders.of(this).get(DetectViewModel.class);
    View root = inflater.inflate(R.layout.fragment_detect, container, false);
    Button btnOpen = root.findViewById(R.id.btn1);
    btnOpen.setOnClickListener(new View.OnClickListener() {
        @Override
            public void onClick (View v){
                Intent in = new Intent(getActivity(), Main3Activity.class);
                startActivity(in);
            }
    });        
    return root;
}
}

If anyone has any solution, please do reply. Thanks.

Answer 1

Your code should start Main3Activity.class when pressing btnOpen .

I think your problem is that Main3Activity.class is crashing and being instantly destroyed.

See LogCat

Answer 2

I found the problem. I had copied the code in Main3Activity and hadn't paid attention to the setContentView() layout and it was set to MainActivity.