CODEWITHSUNDEEP
androidandroid-fragments
Michael Fediuchenko
Michael Fediuchenko

Reputation: 35

Android fragment`s inheritance with arguments

I am knew in android and i'm not sure if i am using right approach.

I want to make small game with some levels where user make input based on what he see on the screen and if it is valid - level is passed.

I have LevelActivity which manages different fragments of levels. I wanted to make LevelFragment as abstruct class and then extend it with different child Fragments (Levels) such as SimplestLevelFragment.

All levels have some common arguments and i don`t know how to pass them to superclass?

Provided code:

LevelFragment.java

public abstract class LevelModelFragment extends Fragment {

protected boolean completed;
private int id;
private String name;
private String[] hints;


@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

}

@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
    return provideFragmentView(inflater, container, savedInstanceState);
}

protected abstract View provideFragmentView(LayoutInflater inflater, ViewGroup parent, Bundle savedInstanceState);

public abstract boolean checkCompletion();

public abstract void handleInput(String input);}

SimplestLevelFragment.java

public class SimplestLevelFragment extends LevelModelFragment {

private final static int id = 1;
private final static String name = "The simplest level I have ever seen";
private final static String[] hints = {"Enter the name of program"};

@Override
protected View provideFragmentView(LayoutInflater inflater, ViewGroup parent, Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.simpleLevelLayout,parent,false);
    //Now specific components here (you can initialize Buttons etc)
    return view;
}

@Override
public boolean checkCompletion() {
    return this.completed;
}

@Override
public void handleInput(String input) {
    if(input == "Secret Path"){
        this.completed = true;
    }
}}

Maybe I should use another architecture approach?

Upvotes: 0

Views: 480

Answers (1)

Công Hải
Công Hải

Reputation: 5241

When you init child Fragment you should put common arguments into Bundle and call setArguments. In super Fragment inside the method onCreate you can get it.

Fragment child = new SimplestLevelFragment();
Bundle data = new Bundle();
// put common value to data
child.setArguments(data);

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    Bundle data = getArguments();
    // get common value you already pass
}

Upvotes: 1

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