Java tutorial
/** * Copyright (C) 2011 Whisper Systems * * 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 systems.obscure.client; import android.app.Activity; import android.app.AlertDialog; import android.app.ProgressDialog; import android.content.DialogInterface; import android.content.Intent; import android.os.AsyncTask; import android.os.Bundle; import android.support.v4.app.ListFragment; import android.support.v7.app.ActionBarActivity; import android.support.v7.view.ActionMode; import android.text.TextUtils; import android.view.LayoutInflater; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.view.View; import android.view.View.OnClickListener; import android.view.ViewGroup; import android.widget.AdapterView; import android.widget.ListView; import com.melnykov.fab.FloatingActionButton; import org.thoughtcrime.securesms.crypto.MasterSecret; import org.thoughtcrime.securesms.notifications.MessageNotifier; import org.thoughtcrime.securesms.util.Dialogs; import java.util.ArrayList; import java.util.Set; import systems.obscure.client.client.Client; import systems.obscure.client.client.Contact; //import org.thoughtcrime.securesms.database.DatabaseFactory; //import org.thoughtcrime.securesms.database.loaders.ConversationListLoader; //import org.thoughtcrime.securesms.components.DefaultSmsReminder; public class ContactsListFragment extends ListFragment implements ActionMode.Callback { private ConversationSelectedListener listener; private MasterSecret masterSecret; private ActionMode actionMode; // private ReminderView reminderView; private FloatingActionButton fab; private String queryFilter = ""; @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle bundle) { final View view = inflater.inflate(R.layout.contact_list_fragment, container, false); // reminderView = new ReminderView(getActivity()); fab = (FloatingActionButton) view.findViewById(R.id.fab); return view; } @Override public void onDestroyView() { super.onDestroyView(); getListView().setAdapter(null); } @Override public void onActivityCreated(Bundle bundle) { super.onActivityCreated(bundle); setHasOptionsMenu(true); getListView().setAdapter(null); // getListView().addHeaderView(reminderView); fab.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { Intent intent = new Intent(getActivity(), NewContactActivity.class); intent.putExtra("master_secret", masterSecret); startActivity(intent); // Intent intent = new Intent(getActivity(), NewConversationActivity.class); // intent.putExtra(NewConversationActivity.MASTER_SECRET_EXTRA, masterSecret); // startActivity(intent); } }); initializeListAdapter(); // initializeBatchListener(); // getLoaderManager().initLoader(0, null, this); } @Override public void onResume() { super.onResume(); initializeReminders(); } @Override public void onAttach(Activity activity) { super.onAttach(activity); this.listener = (ConversationSelectedListener) activity; } @Override public void onListItemClick(ListView l, View v, int position, long id) { Intent contactPage = new Intent(getActivity(), ContactActivity.class); contactPage.putExtra("contact_id", ((Contact) l.getAdapter().getItem(position)).id); contactPage.putExtra("master_secret", masterSecret); startActivity(contactPage); // if (v instanceof ContactsListItem) { // ContactsListItem headerView = (ContactsListItem) v; // if (actionMode == null) { // handleCreateConversation(headerView.getThreadId(), headerView.getRecipients(), // headerView.getDistributionType()); // } else { // ContactListAdapter adapter = (ContactListAdapter)getListAdapter(); // adapter.toggleThreadInBatchSet(headerView.getThreadId()); // // if (adapter.getBatchSelections().size() == 0) { // actionMode.finish(); // } else { // actionMode.setSubtitle(getString(R.string.conversation_fragment_cab__batch_selection_amount, // adapter.getBatchSelections().size())); // } // // adapter.notifyDataSetChanged(); // } // } } public void setMasterSecret(MasterSecret masterSecret) { if (this.masterSecret != masterSecret) { this.masterSecret = masterSecret; initializeListAdapter(); } } public void setQueryFilter(String query) { this.queryFilter = query; // getLoaderManager().restartLoader(0, null, this); } public void resetQueryFilter() { if (!TextUtils.isEmpty(this.queryFilter)) { setQueryFilter(""); } } private void initializeBatchListener() { getListView().setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() { @Override public boolean onItemLongClick(AdapterView<?> arg0, View v, int position, long id) { ContactListAdapter adapter = (ContactListAdapter) getListAdapter(); actionMode = ((ActionBarActivity) getActivity()).startSupportActionMode(ContactsListFragment.this); adapter.initializeBatchMode(true); adapter.toggleThreadInBatchSet(((ContactsListItem) v).getThreadId()); adapter.notifyDataSetChanged(); return true; } }); } private void initializeReminders() { // if (ExpiredBuildReminder.isEligible(getActivity())) { // reminderView.showReminder(new ExpiredBuildReminder()); // } else if (DefaultSmsReminder.isEligible(getActivity())) { // reminderView.showReminder(new DefaultSmsReminder(getActivity())); // } else if (SystemSmsImportReminder.isEligible(getActivity())) { // reminderView.showReminder(new SystemSmsImportReminder(getActivity(), masterSecret)); // } else if (PushRegistrationReminder.isEligible(getActivity())) { // reminderView.showReminder(new PushRegistrationReminder(getActivity(), masterSecret)); // } else { // reminderView.hide(); // } } private void initializeListAdapter() { this.setListAdapter(new ContactListAdapter(getActivity(), new ArrayList<Contact>(Client.getInstance().contacts.values()), masterSecret)); // getListView().setRecyclerListener((ContactListAdapter)getListAdapter()); // getLoaderManager().restartLoader(0, null, this); } private void handleDeleteAllSelected() { AlertDialog.Builder alert = new AlertDialog.Builder(getActivity()); alert.setIcon(Dialogs.resolveIcon(getActivity(), R.attr.dialog_alert_icon)); alert.setTitle(R.string.ConversationListFragment_delete_threads_question); alert.setMessage( R.string.ConversationListFragment_are_you_sure_you_wish_to_delete_all_selected_conversation_threads); alert.setCancelable(true); alert.setPositiveButton(R.string.delete, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { final Set<Long> selectedConversations = ((ContactListAdapter) getListAdapter()) .getBatchSelections(); if (!selectedConversations.isEmpty()) { new AsyncTask<Void, Void, Void>() { private ProgressDialog dialog; @Override protected void onPreExecute() { dialog = ProgressDialog.show(getActivity(), getActivity().getString(R.string.ConversationListFragment_deleting), getActivity() .getString(R.string.ConversationListFragment_deleting_selected_threads), true, false); } @Override protected Void doInBackground(Void... params) { // DatabaseFactory.getThreadDatabase(getActivity()).deleteConversations(selectedConversations); MessageNotifier.updateNotification(getActivity(), masterSecret); return null; } @Override protected void onPostExecute(Void result) { dialog.dismiss(); if (actionMode != null) { actionMode.finish(); actionMode = null; } } }.execute(); } } }); alert.setNegativeButton(android.R.string.cancel, null); alert.show(); } // private void handleSelectAllThreads() { // ((ConversationListAdapter)this.getListAdapter()).selectAllThreads(); // actionMode.setSubtitle(getString(R.string.conversation_fragment_cab__batch_selection_amount, // ((ConversationListAdapter)this.getListAdapter()).getBatchSelections().size())); // } private void handleCreateConversation(long threadId, Contact recipients, int distributionType) { listener.onCreateConversation(threadId, recipients, distributionType); } // @Override // public Loader<Cursor> onCreateLoader(int arg0, Bundle arg1) { //// return new ConversationListLoader(getActivity(), queryFilter); // return null; // } // // @Override // public void onLoadFinished(Loader<Cursor> arg0, Cursor cursor) { // ((CursorAdapter)getListAdapter()).changeCursor(cursor); // } // // @Override // public void onLoaderReset(Loader<Cursor> arg0) { // ((CursorAdapter)getListAdapter()).changeCursor(null); // } public interface ConversationSelectedListener { public void onCreateConversation(long threadId, Contact recipients, int distributionType); } @Override public boolean onCreateActionMode(ActionMode mode, Menu menu) { MenuInflater inflater = getActivity().getMenuInflater(); inflater.inflate(R.menu.conversation_list_batch, menu); mode.setTitle(R.string.conversation_fragment_cab__batch_selection_mode); mode.setSubtitle(null); return true; } @Override public boolean onPrepareActionMode(ActionMode mode, Menu menu) { return false; } @Override public boolean onActionItemClicked(ActionMode mode, MenuItem item) { switch (item.getItemId()) { // case R.id.menu_select_all: handleSelectAllThreads(); return true; case R.id.menu_delete_selected: handleDeleteAllSelected(); return true; } return false; } @Override public void onDestroyActionMode(ActionMode mode) { ((ContactListAdapter) getListAdapter()).initializeBatchMode(false); actionMode = null; } }