Java tutorial
/** * Project: rms-client-android * File: OutboxMessagesListFragment.java * License: * This file is licensed under GNU General Public License version 3 * http://www.gnu.org/licenses/gpl-3.0.txt * * Copyright: Bartosz Cichecki [ cichecki.bartosz@gmail.com ] * Date: 04-01-2013 */ package pl.bcichecki.rms.client.android.fragments; import java.util.ArrayList; import java.util.List; import org.apache.http.HttpStatus; import org.apache.http.client.HttpResponseException; import android.os.Bundle; import android.support.v4.app.ListFragment; import android.util.Log; import android.util.SparseBooleanArray; import android.view.ActionMode; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.view.View; import android.widget.AbsListView; import android.widget.ListView; import android.widget.Toast; import com.google.gson.reflect.TypeToken; import com.loopj.android.http.AsyncHttpResponseHandler; import pl.bcichecki.rms.client.android.R; import pl.bcichecki.rms.client.android.dialogs.OutboxMessageDetailsDialog; import pl.bcichecki.rms.client.android.fragments.listAdapters.OutboxMessagesListAdapter; import pl.bcichecki.rms.client.android.holders.SharedPreferencesWrapper; import pl.bcichecki.rms.client.android.holders.UserProfileHolder; import pl.bcichecki.rms.client.android.model.impl.Message; import pl.bcichecki.rms.client.android.services.clients.restful.https.GsonHttpResponseHandler; import pl.bcichecki.rms.client.android.services.clients.restful.impl.MessagesRestClient; import pl.bcichecki.rms.client.android.utils.AppUtils; /** * @author Bartosz Cichecki * */ public class OutboxMessagesListFragment extends ListFragment { private static final String TAG = "OutboxMessagesListFragment"; private List<Message> outboxMessages = new ArrayList<Message>(); private OutboxMessagesListAdapter outboxMessagesListAdapter; private MessagesRestClient messagesRestClient; private boolean showArchivedMessages = false; private void cancelRequests() { if (messagesRestClient != null) { messagesRestClient.cancelRequests(getActivity(), true); } } private void downloadArchivedData() { if (!showArchivedMessages) { return; } Log.d(TAG, "Downloading outbox messages list..."); if (!AppUtils.checkInternetConnection(getActivity())) { Log.d(TAG, "There is NO network connected!"); return; } messagesRestClient.getAllArchivedOutboxMessages( new GsonHttpResponseHandler<List<Message>>(new TypeToken<List<Message>>() { }.getType(), true) { @Override public void onFailure(Throwable error, String content) { Log.d(TAG, "Retrieving archived outbox messages failed. [error=" + error + ", content=" + content + "]"); if (error instanceof HttpResponseException) { if (((HttpResponseException) error).getStatusCode() == HttpStatus.SC_UNAUTHORIZED) { AppUtils.showCenteredToast(getActivity(), R.string.general_unathorized_error_message_title, Toast.LENGTH_LONG); } else { AppUtils.showCenteredToast(getActivity(), R.string.general_unknown_error_message_title, Toast.LENGTH_LONG); } } else { AppUtils.showCenteredToast(getActivity(), R.string.general_unknown_error_message_title, Toast.LENGTH_LONG); } } @Override public void onFinish() { outboxMessagesListAdapter.refresh(); hideLoadingMessage(); Log.d(TAG, "Retrieving archived outbox messages finished."); } @Override public void onStart() { Log.d(TAG, "Retrieving archived outbox messages started."); showLoadingMessage(); } @Override public void onSuccess(int statusCode, List<Message> object) { Log.d(TAG, "Retrieving archived outbox messages successful. Retrieved " + object.size() + " objects."); outboxMessages.addAll(object); } }); } private void downloadData() { Log.d(TAG, "Downloading outbox messages list..."); if (!AppUtils.checkInternetConnection(getActivity())) { Log.d(TAG, "There is NO network connected!"); return; } messagesRestClient .getAllOutboxMessages(new GsonHttpResponseHandler<List<Message>>(new TypeToken<List<Message>>() { }.getType(), true) { @Override public void onFailure(Throwable error, String content) { Log.d(TAG, "Retrieving outbox messages failed. [error=" + error + ", content=" + content + "]"); if (error instanceof HttpResponseException) { if (((HttpResponseException) error).getStatusCode() == HttpStatus.SC_UNAUTHORIZED) { AppUtils.showCenteredToast(getActivity(), R.string.general_unathorized_error_message_title, Toast.LENGTH_LONG); } else { AppUtils.showCenteredToast(getActivity(), R.string.general_unknown_error_message_title, Toast.LENGTH_LONG); } } else { AppUtils.showCenteredToast(getActivity(), R.string.general_unknown_error_message_title, Toast.LENGTH_LONG); } } @Override public void onFinish() { outboxMessagesListAdapter.refresh(); hideLoadingMessage(); Log.d(TAG, "Retrieving outbox messages finished."); } @Override public void onStart() { Log.d(TAG, "Retrieving outbox messages started."); showLoadingMessage(); outboxMessages.clear(); } @Override public void onSuccess(int statusCode, List<Message> object) { Log.d(TAG, "Retrieving outbox messages successful. Retrieved " + object.size() + " objects."); outboxMessages.addAll(object); } }); } private Message getFirstCheckedItem() { if (getListView().getCheckedItemCount() != 1) { return null; } SparseBooleanArray checkedItemPositions = getListView().getCheckedItemPositions(); for (int i = 0; i < getListAdapter().getCount(); i++) { if (checkedItemPositions.get(i)) { return (Message) getListAdapter().getItem(i); } } return null; } private void hideLoadingMessage() { setListShown(true); } protected void load() { messagesRestClient = new MessagesRestClient(getActivity(), UserProfileHolder.getUsername(), UserProfileHolder.getPassword(), SharedPreferencesWrapper.getServerRealm(), SharedPreferencesWrapper.getServerAddress(), SharedPreferencesWrapper.getServerPort(), SharedPreferencesWrapper.getWebserviceContextPath()); downloadData(); downloadArchivedData(); outboxMessagesListAdapter = new OutboxMessagesListAdapter(getActivity(), outboxMessages); setListAdapter(outboxMessagesListAdapter); } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); load(); } @Override public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) { super.onCreateOptionsMenu(menu, inflater); getActivity().getMenuInflater().inflate(R.menu.fragment_outbox_messages_list, menu); MenuItem showArchivedMenuItem = menu.findItem(R.id.fragment_outbox_messages_list_menu_show_archived); showArchivedMenuItem.setChecked(showArchivedMessages); showArchivedMenuItem.setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() { @Override public boolean onMenuItemClick(MenuItem item) { item.setChecked(!item.isChecked()); showArchivedMessages = item.isChecked(); downloadData(); downloadArchivedData(); return false; } }); } @Override public void onListItemClick(ListView l, View v, int position, long id) { OutboxMessageDetailsDialog outboxMessageDetailsDialog = new OutboxMessageDetailsDialog(); outboxMessageDetailsDialog.setMessage(outboxMessagesListAdapter.getItem(position)); outboxMessageDetailsDialog.show(getFragmentManager(), TAG); } @Override public boolean onOptionsItemSelected(MenuItem item) { if (item.getItemId() == R.id.fragment_outbox_messages_list_menu_refresh) { downloadData(); downloadArchivedData(); return true; } return super.onOptionsItemSelected(item); } @Override public void onStart() { super.onStart(); setHasOptionsMenu(true); setUpActionModeOnListItems(); setEmptyText(getString(R.string.fragment_outbox_messages_list_empty)); } @Override public void onStop() { cancelRequests(); super.onStop(); } private boolean performAction(ActionMode mode, MenuItem item) { Message selectedMessage = getFirstCheckedItem(); if (selectedMessage == null) { Log.w(TAG, "Invalid selection. Aborting..."); return false; } if (item.getItemId() == R.id.fragment_outbox_messages_list_context_menu_archive) { performActionArchive(mode, item, selectedMessage); return true; } if (item.getItemId() == R.id.fragment_outbox_messages_list_context_menu_delete) { performActionDelete(mode, item, selectedMessage); return true; } return false; } private void performActionArchive(final ActionMode mode, MenuItem item, final Message selectedMessage) { messagesRestClient.archiveMessage(selectedMessage, new AsyncHttpResponseHandler() { @Override public void onFailure(Throwable error, String content) { Log.d(TAG, "Archive outbox messages failed. [error=" + error + ", content=" + content + "]"); if (error instanceof HttpResponseException) { if (((HttpResponseException) error).getStatusCode() == HttpStatus.SC_UNAUTHORIZED) { AppUtils.showCenteredToast(getActivity(), R.string.general_unathorized_error_message_title, Toast.LENGTH_LONG); } else { AppUtils.showCenteredToast(getActivity(), R.string.general_unknown_error_message_title, Toast.LENGTH_LONG); } } else { AppUtils.showCenteredToast(getActivity(), R.string.general_unknown_error_message_title, Toast.LENGTH_LONG); } } @Override public void onFinish() { hideLoadingMessage(); Log.d(TAG, "Attempt archive outbox message " + selectedMessage + " finished."); } @Override public void onStart() { Log.d(TAG, "Attempting archive outbox message " + selectedMessage + " started."); showLoadingMessage(); } @Override public void onSuccess(int statusCode, String content) { Log.d(TAG, "Outbox message archive succesfull. Refreshing view."); AppUtils.showCenteredToast(getActivity(), R.string.fragment_outbox_messages_list_archive_successful, Toast.LENGTH_LONG); downloadData(); downloadArchivedData(); mode.finish(); } }); } private void performActionDelete(final ActionMode mode, MenuItem item, final Message selectedMessage) { AsyncHttpResponseHandler handler = new AsyncHttpResponseHandler() { @Override public void onFailure(Throwable error, String content) { Log.d(TAG, "Removing outbox message " + selectedMessage + " failed. [error=" + error + ", content=" + content + "]"); if (error instanceof HttpResponseException) { if (((HttpResponseException) error).getStatusCode() == HttpStatus.SC_UNAUTHORIZED) { AppUtils.showCenteredToast(getActivity(), R.string.general_unathorized_error_message_title, Toast.LENGTH_LONG); } else { AppUtils.showCenteredToast(getActivity(), R.string.general_unknown_error_message_title, Toast.LENGTH_LONG); } } else { AppUtils.showCenteredToast(getActivity(), R.string.general_unknown_error_message_title, Toast.LENGTH_LONG); } } @Override public void onFinish() { Log.d(TAG, "Attempt to delete outbox message finished. " + selectedMessage); } @Override public void onStart() { Log.d(TAG, "Attempting to delete outbox message. " + selectedMessage); } @Override public void onSuccess(int statusCode, String content) { Log.d(TAG, "Attempt to delete outbox message " + selectedMessage + " succesful. Removing object locally and refreshing view..."); AppUtils.showCenteredToast(getActivity(), R.string.fragment_outbox_messages_list_delete_successful, Toast.LENGTH_LONG); downloadData(); downloadArchivedData(); mode.finish(); } }; if (!selectedMessage.isArchivedBySender()) { messagesRestClient.deleteOutboxMessage(selectedMessage, handler); } else { messagesRestClient.deleteArchivedOutboxMessage(selectedMessage, handler); } } public void refresh() { downloadData(); downloadArchivedData(); } private void setUpActionModeOnListItems() { getListView().setChoiceMode(AbsListView.CHOICE_MODE_MULTIPLE_MODAL); getListView().setMultiChoiceModeListener(new AbsListView.MultiChoiceModeListener() { @Override public boolean onActionItemClicked(ActionMode mode, MenuItem item) { return performAction(mode, item); } @Override public boolean onCreateActionMode(ActionMode mode, Menu menu) { MenuInflater inflater = mode.getMenuInflater(); inflater.inflate(R.menu.fragment_outbox_messages_list_context, menu); return true; } @Override public void onDestroyActionMode(ActionMode mode) { } @Override public void onItemCheckedStateChanged(ActionMode mode, int position, long id, boolean checked) { if (checked) { verifyMenuItems(mode.getMenu()); for (int i = 0; i < getListView().getCheckedItemPositions().size(); i++) { if (i != position) { getListView().setItemChecked(i, false); } } } } @Override public boolean onPrepareActionMode(ActionMode mode, Menu menu) { return false; } private void verifyMenuItems(Menu menu) { Message checkedMessage = getFirstCheckedItem(); menu.findItem(R.id.fragment_outbox_messages_list_context_menu_archive) .setVisible(!checkedMessage.isArchivedBySender()); } }); } private void showLoadingMessage() { setListShown(false); } }