Java tutorial
package org.linphone; /* ContactsFragment.java Copyright (C) 2012 Belledonne Communications, Grenoble, France 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 2 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, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ import java.util.List; import org.linphone.compatibility.Compatibility; import org.linphone.core.LinphoneFriend; import org.linphone.core.PresenceActivityType; import org.linphone.mediastream.Log; import android.annotation.SuppressLint; import android.database.Cursor; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.os.Bundle; import android.support.v4.app.Fragment; import android.text.Editable; import android.text.TextWatcher; 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.OnItemClickListener; import android.widget.AlphabetIndexer; import android.widget.BaseAdapter; import android.widget.EditText; import android.widget.ImageView; import android.widget.LinearLayout; import android.widget.ListView; import android.widget.SectionIndexer; import android.widget.TextView; /** * @author Sylvain Berfini */ @SuppressLint("DefaultLocale") public class ContactsFragment extends Fragment implements OnClickListener, OnItemClickListener { private LayoutInflater mInflater; private ListView contactsList; private TextView allContacts, linphoneContacts, newContact, noSipContact, noContact; private boolean onlyDisplayLinphoneContacts; private int lastKnownPosition; private AlphabetIndexer indexer; private boolean editOnClick = false, editConsumed = false, onlyDisplayChatAddress = false; private String sipAddressToAdd; private ImageView clearSearchField; private EditText searchField; private Cursor searchCursor; private static ContactsFragment instance; static final boolean isInstanciated() { return instance != null; } public static final ContactsFragment instance() { return instance; } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { mInflater = inflater; View view = inflater.inflate(R.layout.contacts_list, container, false); if (getArguments() != null) { editOnClick = getArguments().getBoolean("EditOnClick"); sipAddressToAdd = getArguments().getString("SipAddress"); onlyDisplayChatAddress = getArguments().getBoolean("ChatAddressOnly"); } noSipContact = (TextView) view.findViewById(R.id.noSipContact); noContact = (TextView) view.findViewById(R.id.noContact); contactsList = (ListView) view.findViewById(R.id.contactsList); contactsList.setOnItemClickListener(this); allContacts = (TextView) view.findViewById(R.id.allContacts); allContacts.setOnClickListener(this); linphoneContacts = (TextView) view.findViewById(R.id.linphoneContacts); linphoneContacts.setOnClickListener(this); newContact = (TextView) view.findViewById(R.id.newContact); newContact.setOnClickListener(this); newContact.setEnabled(LinphoneManager.getLc().getCallsNb() == 0); allContacts.setEnabled(onlyDisplayLinphoneContacts); linphoneContacts.setEnabled(!allContacts.isEnabled()); clearSearchField = (ImageView) view.findViewById(R.id.clearSearchField); clearSearchField.setOnClickListener(this); searchField = (EditText) view.findViewById(R.id.searchField); searchField.addTextChangedListener(new TextWatcher() { @Override public void onTextChanged(CharSequence s, int start, int before, int count) { } @Override public void beforeTextChanged(CharSequence s, int start, int count, int after) { } @Override public void afterTextChanged(Editable s) { searchContacts(searchField.getText().toString()); } }); return view; } @Override public void onClick(View v) { int id = v.getId(); if (id == R.id.allContacts) { onlyDisplayLinphoneContacts = false; if (searchField.getText().toString().length() > 0) { searchContacts(); } else { changeContactsAdapter(); } } else if (id == R.id.linphoneContacts) { onlyDisplayLinphoneContacts = true; if (searchField.getText().toString().length() > 0) { searchContacts(); } else { changeContactsAdapter(); } } else if (id == R.id.newContact) { editConsumed = true; LinphoneActivity.instance().addContact(null, sipAddressToAdd); } else if (id == R.id.clearSearchField) { searchField.setText(""); } } private void searchContacts() { searchContacts(searchField.getText().toString()); } private void searchContacts(String search) { if (search == null || search.length() == 0) { changeContactsAdapter(); return; } changeContactsToggle(); if (searchCursor != null) { searchCursor.close(); } if (onlyDisplayLinphoneContacts) { searchCursor = Compatibility.getSIPContactsCursor(getActivity().getContentResolver(), search, ContactsManager.getInstance().getContactsId()); indexer = new AlphabetIndexer(searchCursor, Compatibility.getCursorDisplayNameColumnIndex(searchCursor), " ABCDEFGHIJKLMNOPQRSTUVWXYZ"); contactsList.setAdapter(new ContactsListAdapter(null, searchCursor)); } else { searchCursor = Compatibility.getContactsCursor(getActivity().getContentResolver(), search, ContactsManager.getInstance().getContactsId()); indexer = new AlphabetIndexer(searchCursor, Compatibility.getCursorDisplayNameColumnIndex(searchCursor), " ABCDEFGHIJKLMNOPQRSTUVWXYZ"); contactsList.setAdapter(new ContactsListAdapter(null, searchCursor)); } } private void changeContactsAdapter() { changeContactsToggle(); if (searchCursor != null) { searchCursor.close(); } Cursor allContactsCursor = ContactsManager.getInstance().getAllContactsCursor(); Cursor sipContactsCursor = ContactsManager.getInstance().getSIPContactsCursor(); noSipContact.setVisibility(View.GONE); noContact.setVisibility(View.GONE); contactsList.setVisibility(View.VISIBLE); if (onlyDisplayLinphoneContacts) { if (sipContactsCursor != null && sipContactsCursor.getCount() == 0) { noSipContact.setVisibility(View.VISIBLE); contactsList.setVisibility(View.GONE); } else { indexer = new AlphabetIndexer(sipContactsCursor, Compatibility.getCursorDisplayNameColumnIndex(sipContactsCursor), " ABCDEFGHIJKLMNOPQRSTUVWXYZ"); contactsList.setAdapter( new ContactsListAdapter(ContactsManager.getInstance().getSIPContacts(), sipContactsCursor)); } } else { if (allContactsCursor != null && allContactsCursor.getCount() == 0) { noContact.setVisibility(View.VISIBLE); contactsList.setVisibility(View.GONE); } else { indexer = new AlphabetIndexer(allContactsCursor, Compatibility.getCursorDisplayNameColumnIndex(allContactsCursor), " ABCDEFGHIJKLMNOPQRSTUVWXYZ"); contactsList.setAdapter( new ContactsListAdapter(ContactsManager.getInstance().getAllContacts(), allContactsCursor)); } } ContactsManager.getInstance().setLinphoneContactsPrefered(onlyDisplayLinphoneContacts); } private void changeContactsToggle() { if (onlyDisplayLinphoneContacts) { allContacts.setEnabled(true); linphoneContacts.setEnabled(false); } else { allContacts.setEnabled(false); linphoneContacts.setEnabled(true); } } @Override public void onItemClick(AdapterView<?> adapter, View view, int position, long id) { Contact contact = (Contact) adapter.getItemAtPosition(position); if (editOnClick) { editConsumed = true; LinphoneActivity.instance().editContact(contact, sipAddressToAdd); } else { lastKnownPosition = contactsList.getFirstVisiblePosition(); LinphoneActivity.instance().displayContact(contact, onlyDisplayChatAddress); } } @Override public void onResume() { instance = this; super.onResume(); if (editConsumed) { editOnClick = false; sipAddressToAdd = null; } if (LinphoneActivity.isInstanciated()) { LinphoneActivity.instance().selectMenu(FragmentsAvailable.CONTACTS); onlyDisplayLinphoneContacts = ContactsManager.getInstance().isLinphoneContactsPrefered(); if (getResources().getBoolean(R.bool.show_statusbar_only_on_dialer)) { LinphoneActivity.instance().hideStatusBar(); } } invalidate(); } @Override public void onPause() { instance = null; if (searchCursor != null) { searchCursor.close(); } super.onPause(); } public void invalidate() { if (searchField != null && searchField.getText().toString().length() > 0) { searchContacts(searchField.getText().toString()); } else { changeContactsAdapter(); } contactsList.setSelectionFromTop(lastKnownPosition, 0); } class ContactsListAdapter extends BaseAdapter implements SectionIndexer { private int margin; private Bitmap bitmapUnknown; private List<Contact> contacts; private Cursor cursor; ContactsListAdapter(List<Contact> contactsList, Cursor c) { contacts = contactsList; cursor = c; margin = LinphoneUtils.pixelsToDpi(LinphoneActivity.instance().getResources(), 10); bitmapUnknown = BitmapFactory.decodeResource(LinphoneActivity.instance().getResources(), R.drawable.unknown_small); } public int getCount() { return cursor.getCount(); } public Object getItem(int position) { if (contacts == null || position >= contacts.size()) { return Compatibility.getContact(getActivity().getContentResolver(), cursor, position); } else { return contacts.get(position); } } public long getItemId(int position) { return position; } public View getView(int position, View convertView, ViewGroup parent) { View view = null; Contact contact = null; do { contact = (Contact) getItem(position); } while (contact == null); if (convertView != null) { view = convertView; } else { view = mInflater.inflate(R.layout.contact_cell, parent, false); } TextView name = (TextView) view.findViewById(R.id.name); name.setText(contact.getName()); TextView separator = (TextView) view.findViewById(R.id.separator); LinearLayout layout = (LinearLayout) view.findViewById(R.id.layout); if (getPositionForSection(getSectionForPosition(position)) != position) { separator.setVisibility(View.GONE); layout.setPadding(0, margin, 0, margin); } else { separator.setVisibility(View.VISIBLE); separator.setText(String.valueOf(contact.getName().charAt(0))); layout.setPadding(0, 0, 0, margin); } ImageView icon = (ImageView) view.findViewById(R.id.icon); if (contact.getPhoto() != null) { icon.setImageBitmap(contact.getPhoto()); } else if (contact.getPhotoUri() != null) { icon.setImageURI(contact.getPhotoUri()); } else { icon.setImageBitmap(bitmapUnknown); } ImageView friendStatus = (ImageView) view.findViewById(R.id.friendStatus); LinphoneFriend[] friends = LinphoneManager.getLc().getFriendList(); if (!ContactsManager.getInstance().isContactPresenceDisabled() && friends != null) { friendStatus.setVisibility(View.VISIBLE); PresenceActivityType presenceActivity = friends[0].getPresenceModel().getActivity().getType(); if (presenceActivity == PresenceActivityType.Online) { friendStatus.setImageResource(R.drawable.led_connected); } else if (presenceActivity == PresenceActivityType.Busy) { friendStatus.setImageResource(R.drawable.led_error); } else if (presenceActivity == PresenceActivityType.Away) { friendStatus.setImageResource(R.drawable.led_inprogress); } else if (presenceActivity == PresenceActivityType.Offline) { friendStatus.setImageResource(R.drawable.led_disconnected); } else { friendStatus.setImageResource(R.drawable.call_quality_indicator_0); } } return view; } @Override public int getPositionForSection(int section) { return indexer.getPositionForSection(section); } @Override public int getSectionForPosition(int position) { return indexer.getSectionForPosition(position); } @Override public Object[] getSections() { return indexer.getSections(); } } }