Question

I’m trying to convert Activity to a fragment and can’t override this methods : onCreateOptionsMenu,onOptionsItemSelected,onContextItemSelected.
,maybe some import statements are missing ? don’t know what to do.Her is my Class file :
package com.wts.ui;

import java.util.Date;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import android.app.Activity;
import android.content.Intent;
import android.database.Cursor;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.ContextMenu;
import android.view.ContextMenu.ContextMenuInfo;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemLongClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.Toast;

import com.actionbarsherlock.view.Menu;
import com.actionbarsherlock.view.MenuInflater;
import com.actionbarsherlock.view.MenuItem;

public class MainFragment extends Fragment {

    protected final static int REQUEST_CODE = 1;

    public static WordsDBAdapter dbAdapter;
    private CustomAdapter cDataAdapter;
    private Button button;
    private EditText editWord;
    private EditText editTranslate;
    private ListView listView;
    private String selectedWord;
    private Cursor cursor;

    // context menu
    private final static int IDM_EDIT = 101;
    private final static int IDM_DELETE = 102;
    private final static int IDM_INFO = 103;

    // options menu
    private static final int IDM_ABOUT = 201;
    private static final int IDM_EXIT = 202;
    private static final int IDM_SETTINGS = 203;
    private static final int IDM_QUESTION = 204;

    @Override
    public void onActivityCreated(Bundle savedInstanceState) {

        super.onActivityCreated(savedInstanceState);

        dbAdapter = new WordsDBAdapter(getActivity());
        dbAdapter.open();

        displayListView();
        registerForContextMenu(listView);

        // ================ListView onLongClick========================
        listView.setOnItemLongClickListener(new OnItemLongClickListener() {
            @Override
            public boolean onItemLongClick(AdapterView<?> arg0, View arg1,
                    int arg2, long arg3) {
                cursor = (Cursor) listView.getItemAtPosition(arg2);
                selectedWord = cursor.getString(WordsDBAdapter.ID_COL);
                return false;
            }
        });

        // ================Button onClick========================
        button.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {

                String word = editWord.getText().toString();
                String translate = editTranslate.getText().toString();

                if (word.length() > 0 && translate.length() >= 0) {
                    Cursor cursor = dbAdapter.fetchWordsByName(word);// chek is
                                                                        // word
                                                                        // repeat

                    if (cursor.moveToFirst()) {
                        Toast.makeText(getActivity().getApplicationContext(),
                                getResources().getString(R.string.word_exist),
                                Toast.LENGTH_SHORT).show();
                    } else if (!CheckWordInput(word)
                            || !CheckTranslateInput(translate)) {
                        Toast.makeText(
                                getActivity().getApplicationContext(),
                                getResources().getString(
                                        R.string.incorrect_input),
                                Toast.LENGTH_SHORT).show();
                    } else {
                        dbAdapter.insertWord(word, translate, " ",
                                String.valueOf(false), 0, 0, new Date());
                        displayListView();

                        editWord.setText("");
                        editTranslate.setText("");
                    }
                }
            }
        });
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {

        View view = inflater.inflate(R.layout.activity_main, container, false);

        button = (Button) view.findViewById(R.id.buttonAddWord);
        listView = (ListView) view.findViewById(R.id.listWords);
        editWord = (EditText) view.findViewById(R.id.editWord);
        editTranslate = (EditText) view.findViewById(R.id.editTranslate);

        return view;
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setHasOptionsMenu(true);
        // setContentView(R.layout.activity_main);

    }

    @Override
    public void onCreateContextMenu(ContextMenu menu, View v,
            ContextMenuInfo menuInfo) {
        if (v.getId() == R.id.listWords) {
            String[] menuItems = getResources().getStringArray(
                    R.array.contextMenuItems);

            menu.add(Menu.NONE, IDM_EDIT, Menu.NONE,
                    menuItems[StartActivity.CONTEXT_MENU_EDIT]);
            menu.add(Menu.NONE, IDM_INFO, Menu.NONE,
                    menuItems[StartActivity.CONTEXT_MENU_INFO]);
            menu.add(Menu.NONE, IDM_DELETE, Menu.NONE,
                    menuItems[StartActivity.CONTEXT_MENU_DELETE]);

        }
    }

    //
    @Override
    public boolean onContextItemSelected(MenuItem item) {
        switch (item.getItemId()) {
        case IDM_EDIT: {
            Intent intent = new Intent(getActivity(), EditActivity.class);
            intent.putExtra(getResources().getString(R.string.fstRow),
                    cursor.getString(WordsDBAdapter.WORD_COL));
            intent.putExtra(getResources().getString(R.string.scndRow),
                    cursor.getString(WordsDBAdapter.TRANS_COL));
            intent.putExtra(getResources().getString(R.string.thrdRow),
                    cursor.getString(WordsDBAdapter.DESC_COL));

            startActivityForResult(intent, REQUEST_CODE);
        }
            break;
        case IDM_DELETE:
            dbAdapter.deleteWord(selectedWord);
            displayListView();
            break;
        case IDM_INFO: {
            Intent intent = new Intent(getActivity(), InformationActivity.class);
            for (int i = 1; i <= InformationActivity.nListItems; i++)
                intent.putExtra(String.valueOf(i), cursor.getString(i));

            startActivity(intent);
        }
            break;
        default:
            return super.onContextItemSelected(item);

        }
        return true;
    }

    private void displayListView() {
        // Cursor cursor = dbAdapter.fetchAllTranslated();
        Cursor cursor = dbAdapter.fetchAllTranslated();

        String[] columns = new String[] { WordsDBAdapter.KEY_WORD,
                WordsDBAdapter.KEY_TRANSLATION, WordsDBAdapter.KEY_SUCCEEDED, };

        int[] to = new int[] { R.id.textViewTranslate, R.id.textViewWord,
                R.id.textViewSuccessPoints };

        cDataAdapter = new CustomAdapter(getActivity(), R.layout.word_info,
                cursor, columns, to);

        listView.setAdapter(cDataAdapter);
    }

    @Override
    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
        inflater.inflate(R.menu.activity_main, menu);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
        case IDM_ABOUT: {
            Intent intent = new Intent(getActivity(), AboutActivity.class);
            startActivity(intent);
            break;
        }
        case IDM_EXIT: {
            Intent intent = new Intent(Intent.ACTION_MAIN);
            intent.addCategory(Intent.CATEGORY_HOME);
            intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            startActivity(intent);
            getActivity().finish();
            break;
        }
        case IDM_SETTINGS: {
            Intent intent = new Intent(getActivity(), SettingsActivity.class);
            startActivity(intent);
            break;
        }
        case IDM_QUESTION: {
            if (!StartActivity.isMainActivitySart)
                getActivity().onBackPressed();
            else {
                Intent intent = new Intent(getActivity(),
                        QuestionActivity.class);
                startActivity(intent);
            }
        }
            break;
        }
        return true;
    }

    @Override
    public void onActivityResult(int requestCode, int resultCode, Intent intent) {
        if (resultCode == Activity.RESULT_OK && requestCode == REQUEST_CODE) {
            if (intent.hasExtra(getResources().getString(R.string.fstRow))) {
                dbAdapter.changeValue(
                        selectedWord,
                        intent.getExtras().getString(
                                getResources().getString(R.string.fstRow)),
                        intent.getExtras().getString(
                                getResources().getString(R.string.scndRow)),
                        intent.getExtras().getString(
                                getResources().getString(R.string.thrdRow)),
                        null, null, null, null);
                displayListView();
            }
        }
    }

    @Override
    public void onResume() {
        super.onResume();
        SettingsManager.setPreferedLanguage(getActivity());// set language
        displayListView();
    }

    public static boolean CheckTranslateInput(String str) {
        Pattern inputPattern = Pattern.compile("[\\p{L} -]{0,25}");
        Matcher inputMatcher = inputPattern.matcher(str);
        return inputMatcher.matches();
    }

    public static boolean CheckWordInput(String str) {
        Pattern inputPattern = Pattern.compile("[\\p{L} -]{1,25}");
        Matcher inputMatcher = inputPattern.matcher(str);
        return inputMatcher.matches();
    }

    @Override
    public void onDetach() {
        super.onDetach();
        dbAdapter.close();
    }
}

Answer 1

You have to think about what you want your Fragment to be – Fragment or SherlockFragment?

You import this:

import com.actionbarsherlock.view.Menu;
import com.actionbarsherlock.view.MenuInflater;
import com.actionbarsherlock.view.MenuItem;

And so, your overrides aren’t overrides because Menu & friends are different classes right now than what Fragment needs – they are ActionBarSherlock’s classes.

If you extend SherlockFragment instead, your overrides should work, and it is recommended to extend SherlockFragment if you are using ActionBarSherlock (which based on your tags, you are).

If you want to keep this as a regular fragment, then import:

android.view.Menu
android.view.MenuItem
android.view.MenuInflater