Java tutorial
/* * Copyright (C) 2012-2016 The Android Money Manager Ex Project Team * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 3 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package com.money.manager.ex.budget; import android.app.Activity; import android.content.Intent; import android.database.Cursor; import android.os.Bundle; import android.support.annotation.NonNull; import android.support.v4.app.LoaderManager; import android.support.v4.content.Loader; import android.support.v4.widget.SimpleCursorAdapter; import android.view.ContextMenu; import android.view.View; import android.widget.AdapterView; import android.widget.ListView; import com.afollestad.materialdialogs.DialogAction; import com.afollestad.materialdialogs.MaterialDialog; import com.money.manager.ex.R; import com.money.manager.ex.adapter.MoneySimpleCursorAdapter; import com.money.manager.ex.budget.events.BudgetSelectedEvent; import com.money.manager.ex.common.BaseListFragment; import com.money.manager.ex.common.MmxCursorLoader; import com.money.manager.ex.core.ContextMenuIds; import com.money.manager.ex.core.MenuHelper; import com.money.manager.ex.datalayer.BudgetRepository; import com.money.manager.ex.datalayer.Select; import com.money.manager.ex.domainmodel.Budget; import org.greenrobot.eventbus.EventBus; /** * Use the {@link BudgetListFragment#newInstance} factory method to * create an instance of this fragment. */ public class BudgetListFragment extends BaseListFragment implements LoaderManager.LoaderCallbacks<Cursor> { public static final int REQUEST_EDIT_BUDGET = 1; /** * Use this factory method to create a new instance of * this fragment using the provided parameters. * * @return A new instance of fragment BudgetListFragment. */ public static BudgetListFragment newInstance() { BudgetListFragment fragment = new BudgetListFragment(); Bundle args = new Bundle(); // args.putString(ARG_PARAM1, param1); fragment.setArguments(args); return fragment; } private final int LOADER_BUDGETS = 1; private MoneySimpleCursorAdapter mAdapter; public BudgetListFragment() { // Required empty public constructor } @Override public String getSubTitle() { return getString(R.string.budget_list); } @Override public void onActivityCreated(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); setFloatingActionButtonVisible(true); attachFloatingActionButtonToListView(); registerForContextMenu(getListView()); } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); } // @Override // public View onCreateView(LayoutInflater inflater, ViewGroup container, // Bundle savedInstanceState) { // // Inflate the layout for this fragment // return inflater.inflate(R.layout.fragment_budgets_list, container, false); // } @Override public void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if (resultCode == Activity.RESULT_CANCELED) return; switch (requestCode) { case REQUEST_EDIT_BUDGET: // refresh budget list getLoaderManager().restartLoader(LOADER_BUDGETS, null, this); break; } } @Override public void onViewCreated(View view, Bundle savedInstanceState) { super.onViewCreated(view, savedInstanceState); displayBudgets(); } // Loader events @Override public Loader<Cursor> onCreateLoader(int id, Bundle args) { Loader<Cursor> result = null; switch (id) { case LOADER_BUDGETS: BudgetRepository repo = new BudgetRepository(getActivity()); Select query = new Select(repo.getAllColumns()).orderBy(Budget.BUDGETYEARNAME); result = new MmxCursorLoader(getActivity(), repo.getUri(), query); break; } return result; } @Override public void onLoadFinished(Loader<Cursor> loader, Cursor data) { switch (loader.getId()) { case LOADER_BUDGETS: // mAdapter.swapCursor(data); mAdapter.changeCursor(data); if (isResumed()) { setListShown(true); } else { setListShownNoAnimation(true); } break; } } @Override public void onLoaderReset(Loader<Cursor> loader) { switch (loader.getId()) { case LOADER_BUDGETS: // mAdapter.swapCursor(null); mAdapter.changeCursor(null); break; } } // Context Menu @Override public void onCreateContextMenu(ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) { super.onCreateContextMenu(menu, v, menuInfo); AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) menuInfo; // get selected item name SimpleCursorAdapter adapter = (SimpleCursorAdapter) getListAdapter(); Cursor cursor = (Cursor) adapter.getItem(info.position); menu.setHeaderTitle(cursor.getString(cursor.getColumnIndex(Budget.BUDGETYEARNAME))); MenuHelper menuHelper = new MenuHelper(getActivity(), menu); menuHelper.addEditToContextMenu(); menuHelper.addDeleteToContextMenu(); //todo menu.add(Menu.NONE, ContextMenuIds.COPY, Menu.NONE, getString(R.string.copy)); } @Override public boolean onContextItemSelected(android.view.MenuItem item) { AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) item.getMenuInfo(); int budgetId = (int) info.id; int id = item.getItemId(); ContextMenuIds menuId = ContextMenuIds.get(id); switch (menuId) { case EDIT: editBudget(budgetId); break; case DELETE: confirmDelete(budgetId); break; case COPY: BudgetService service = new BudgetService(getActivity()); service.copy(budgetId); break; default: return false; } return false; } // Other @Override public void onListItemClick(ListView l, View v, int position, long id) { super.onListItemClick(l, v, position, id); // Notify the parent to show the budget details. Cursor cursor = (Cursor) l.getItemAtPosition(position); String budgetName = cursor.getString(cursor.getColumnIndex(Budget.BUDGETYEARNAME)); EventBus.getDefault().post(new BudgetSelectedEvent(id, budgetName)); } @Override public void onFloatingActionButtonClicked() { createBudget(); } // Private private void displayBudgets() { mAdapter = new MoneySimpleCursorAdapter(getActivity(), android.R.layout.simple_list_item_1, null, new String[] { Budget.BUDGETYEARNAME }, new int[] { android.R.id.text1 }, 0); setListAdapter(mAdapter); setListShown(false); getLoaderManager().initLoader(LOADER_BUDGETS, null, this); } private void editBudget(int budgetId) { Intent intent = new Intent(getActivity(), BudgetEditActivity.class); intent.putExtra(BudgetEditActivity.KEY_BUDGET_ID, budgetId); intent.setAction(Intent.ACTION_EDIT); //startActivity(intent); startActivityForResult(intent, REQUEST_EDIT_BUDGET); } private void createBudget() { Intent intent = new Intent(getActivity(), BudgetEditActivity.class); intent.setAction(Intent.ACTION_INSERT); startActivityForResult(intent, REQUEST_EDIT_BUDGET); } private void confirmDelete(final int budgetId) { new MaterialDialog.Builder(getActivity()).title(R.string.delete).content(R.string.confirmDelete) .positiveText(android.R.string.ok).onPositive(new MaterialDialog.SingleButtonCallback() { @Override public void onClick(@NonNull MaterialDialog dialog, @NonNull DialogAction which) { BudgetService service = new BudgetService(getActivity()); service.delete(budgetId); } }).neutralText(android.R.string.cancel).show(); } }