public async Task getDataFromServer()
{
IList <Lesson> lessons = null;
try {
lessons = await LessonUtil.GetLessonsByModuleAsync(module_id);
} catch (Exception ex) {
DialogFactory.ToastDialog(this, "Data Error", "Error Connecting to Server,please try again later!", Constants.LESSON_ERROR);
}
if (lessons != null)
{
sourceDateList = new List <SortModel> ();
foreach (var lesson in lessons)
{
string name = lesson.Title;
if (name.Length > 0)
{
string firstAlpha = name.Substring(0, 1).ToUpper();
SortModel temp = new SortModel();
temp.SortLetters = firstAlpha;
temp.Name = name;
temp.LessonId = lesson.Id;
temp.ScreenCount = lesson.ScreenCount;
sourceDateList.Add(temp);
}
else
{
continue;
}
}
sourceDateList.Sort();
}
}
private Boolean updateAnswers()
{
switch (screen.Type)
{
case "text_essay_audio_image":
var textessayaudioimage = fragment as TextEssayAudioImageFragment;
var eText = textessayaudioimage.et_answer.Text;
if (string.IsNullOrEmpty(eText))
{
DialogFactory.ToastDialog(this, "Empty answer", "Please type your answer", 0);
return(false);
}
recordAnswer(eText);
break;
case "question": //selected
var question = fragment as QuestionFragment;
var checkedId = (question.choicesRadioGroup as RadioGroup).CheckedRadioButtonId;
if (checkedId < 0)
{
//not selected
DialogFactory.ToastDialog(this, "No selection", "Please select one answer", 0);
return(false);
}
recordAnswer(checkedId + "");
recordSelectedAnswer(screen.Id, question.options [checkedId].Id);
break;
case "audio_question":
case "question_audio": //selected
var audioquestion = fragment as QuestionAudioFragment;
var cId = (audioquestion.choicesRadioGroup as RadioGroup).CheckedRadioButtonId;
if (cId < 0)
{
//not selected
DialogFactory.ToastDialog(this, "No selection", "Please select one answer", 0);
return(false);
}
recordAnswer(cId + "");
recordSelectedAnswer(screen.Id, audioquestion.options [cId].Id);
break;
case "text_question_audio_image":
var textquestionaudioimage = fragment as TextQuestionAudioImageFragment;
var tId = (textquestionaudioimage.choicesRadioGroup as RadioGroup).CheckedRadioButtonId;
if (tId < 0)
{
//not selected
DialogFactory.ToastDialog(this, "No selection", "Please select one answer", 0);
return(false);
}
recordAnswer(tId + "");
recordSelectedAnswer(screen.Id, textquestionaudioimage.options [tId].Id);
break;
default:
break;
}
return(true);
}
private async Task getScreenFromServer()
{
try {
screens = await LessonUtil.GetScreensByLessonAsync(lesson_id);
} catch (Exception ex) {
DialogFactory.ToastDialog(this, "Data Error", "Error Connecting to Server,please try again later!", Constants.TEXT_ERROR);
}
if (screens != null)
{
//make text and images
screen = screens [0];
string type = screen.Type;
if (type.Contains("text"))
{
var texts = screen.Texts;
Utils.makeTextViews(texts, this, ll_content, Color.Black);
}
if (type.Contains("image"))
{
var imageslist = screen.Images;
var images = new List <Image> (imageslist);
Utils.makeTextImages(this, ll_content, images);
}
//make return button
Utils.makeReturnButton(this, ll_content);
ll_content.Visibility = ViewStates.Visible;
ll_load.Visibility = ViewStates.Invisible;
}
}
private async void registerUser()
{
var result = await UserUtil.RegisterUserAsync(user);
if (result.Item1 == true)
{
//register successfully
DialogFactory.ToastDialog(this, "Register success", "Congratulations,you have registered successfully!You will receive an email with password!", Constants.REGISTER_SUCCESS);
}
else
{
//register fail
DialogFactory.ToastDialog(this, "Register fail", "this email has been registered", 0); //to do: more specific error msg
}
}
public override void initListner ()
{
//set edittext listener
mClearEditText.AddTextChangedListener (new MyTextChangedListener (this));
//set item click listener
sortListView.ItemClick += delegate(object sender, AdapterView.ItemClickEventArgs e) {
SortModel user = sourceDateList [e.Position];
if (user.ScreenCount > 0) {
Intent intent = new Intent (this, typeof(TextActivity));
intent.PutExtra ("lesson_id", user.LessonId);
intent.PutExtra ("lesson_name", user.Name);
StartActivity (intent);
} else {
DialogFactory.ToastDialog (this, "Empty lesson", "Oops,this lesson has not uploaded yet!", 0);
}
};
}
public async void getLessonsFromServer()
{
try {
var lessons = await LessonUtil.GetLessonsByModuleAsync(module_id);
lessonList = new List <Lesson> (lessons);
} catch (Exception ex) {
DialogFactory.ToastDialog(this, "Server busy", "Server is busy,please drag down to refresh later", 0);
tv_pull_list_header_title.Text = "Server busy!";
tv_pull_list_header_title.SetTextColor(Color.Red);
}
if (lessonList != null)
{
lv_list.onRefreshComplete();
lv_list.Adapter = new MyListViewAdapter(this, lessonList);
lv_list.setOnRefreshListener(new MyRefreshListener(this));
lv_list.Visibility = ViewStates.Visible;
ll_load.Visibility = ViewStates.Invisible;
}
}
public async void initData()
{
//register battery change broadcast
RegisterBatteryChangedReceiver();
//check vitamio installed?
if (!LibsChecker.CheckVitamioLibs(Activity))
{
return;
}
//get video_url
video_url = Utils.EncodeURL(getVideoUrl());
if (!string.IsNullOrEmpty(video_url))
{
vv.SetVideoURI(Android.Net.Uri.Parse(Utils.EncodeURL(video_url)));
}
else
{
DialogFactory.ToastDialog(Activity, "Connect error", "Connect error,please try again later!", Constants.RETURN_LIST);
}
vv.RequestFocus();
vv.Prepared += delegate(object sender, IO.Vov.Vitamio.MediaPlayer.PreparedEventArgs e) {
e.P0.SetPlaybackSpeed(1.0f); //start play
vv.Start();
//put duration
string duration = Utils.formatMillis(vv.Duration); //set duration
tv_duration.Text = duration;
sb_video.Max = (int)vv.Duration;
updateCurrentPosition();
btn_play.SetBackgroundResource(Resource.Drawable.selector_btn_pause); //set play button
tv_title.Text = Activity.Intent.GetStringExtra(Constants.LESSON_TITLE) + ":" + Activity.Intent.GetStringExtra(Constants.LESSON_DES); //set video title
//hide the loading progress bar
hideLoadingCtl();
};
//control volume
initVolume();
// scale volume
maxVlumeScreenHeightScale = ((float)maxVolume) / Utils.getWindowWidth(Activity);
//set screen width and height
screenWidth = Utils.getWindowWidth(Activity);
screenHeight = Utils.getWindowHeight(Activity);
}
private async void getVideoUrlFromServer()
{
var result = await LessonUtil.GetScreensByLessonAsync(lessonId);
if (result != null && result.Count > 0)
{
Constants.screens = result;
//jump to screenactivity
Intent intent = new Intent(this, typeof(ScreensActivity));
intent.PutExtra(Constants.LESSON_TITLE, currentLesson.Title);
intent.PutExtra(Constants.LESSON_DES, currentLesson.Description);
intent.PutExtra(Constants.LESSON_ID, currentLesson.Id);
StartActivity(intent);
Finish();
}
else
{
lv_list.Visibility = ViewStates.Visible;
ll_load.Visibility = ViewStates.Invisible;
DialogFactory.ToastDialog(this, "Empty lesson", "Oops,this lesson has not uploaded yet!", 0);
}
}
public async void getModulesFromServer()
{
try {
var modules = await LessonUtil.GetModulesAsync();
Constants.currentUser = await UserUtil.GetCurrentUserAsync();
moduleList = new List <Module> (modules);
} catch (Exception ex) {
DialogFactory.ToastDialog(activity, "Server busy", "Server is busy,please login later", Constants.LOGIN_TIMEOUT);
}
if (Constants.currentUser == null)
{
//illegal login
DialogFactory.ToastDialog(activity, "Login timeout", "Timeout,please login again", Constants.LOGIN_TIMEOUT);
}
else
{
lv_list.Adapter = new MyModuleListAdapter(moduleList, this.activity);
lv_list.Visibility = ViewStates.Visible;
ll_load.Visibility = ViewStates.Invisible;
}
}
public void OnBackPressed()
{
DialogFactory.ToastDialog(Activity, "Back", "Please finish watching this lesson!", 0);
}
/// <summary>
/// Submits the answers.
/// </summary>
private void submitAnswers()
{
updateAnswers();
//toast a dialog
DialogFactory.toastNegativePositiveDialog(this, "Submit", "Are you sure to submit the answers", Constants.SUBMIT_ANSWERS);
}
public override void OnFinish()
{
DialogFactory.ToastDialog(context, "Time up", "Time is out,it will go to result screen!", Constants.TIME_UP);
}
public override void OnBackPressed()
{
//back pressed
DialogFactory.ToastDialog(this, "Return", "Please answer all questions and submit!", 0);
}
/// <summary>
/// Login this instance.
/// </summary>
public async void Login()
{
email = login_accounts.Text;
password = login_password.Text;
//loginTest ();
//check internet
bool isNetWorking = Utils.isNetworkAvailable(this);
if (isNetWorking == true)
{
//todo:check empty
if (string.IsNullOrEmpty(email) || string.IsNullOrEmpty(password))
{
DialogFactory.ToastDialog(this, "Login", "Username and password cannot be empty!", 0);
}
else
{
//check email
Match match = Regex.Match(email, "^(\\w)+(\\.\\w+)*@(\\w)+((\\.\\w{2,3}){1,3})$");
if (match.Success)
{
//Authenticate
View popView = View.Inflate(this, Resource.Layout.popup_authenticate, null);
pop = new PopupWindow(popView, 320, 200);
pop.ShowAtLocation(login_btn, GravityFlags.Center, 0, 20);
//Modal
ll_loginpage.Alpha = 0.5f;
EnableAllViews(false);
//check email and password to server
try {
result = await UserUtil.AuthenticateUserAsync(email, password);
} catch (Exception ex) {
ll_loginpage.Alpha = 1.0f;
EnableAllViews(true);
pop.Dismiss();
AlertDialog.Builder ab = new AlertDialog.Builder(this);
ab.SetTitle("Server busy");
ab.SetMessage("Server is busy,please try again later!");
ab.SetPositiveButton("confirm", delegate(object sender, DialogClickEventArgs e) {
});
ab.Create().Show();
}
if (result != null)
{
if (result.Item2 != null)
{
//login successfully
//remember me?
bool check = auto_save_password.Checked;
if (auto_save_password.Checked)
{
edit.PutString("email", email);
edit.PutString("password", password);
edit.PutBoolean("checked", check);
edit.Commit();
}
else
{
edit.PutBoolean("checked", check);
edit.Commit();
}
Toast.MakeText(this, "Login successfully!", ToastLength.Short).Show();
Intent intent = new Intent(this, typeof(HomeActivity));
intent.PutExtra("email", email);
intent.PutExtra("token", result.Item2);
StartActivity(intent);
Finish();
}
else
{
ll_loginpage.Alpha = 1.0f;
pop.Dismiss();
EnableAllViews(true);
//failed
DialogFactory.ToastDialog(this, "Login", "Username or password is not correct!", 0); //to do:specific error msg
}
}
}
else
{
ll_loginpage.Alpha = 1.0f;
pop.Dismiss();
EnableAllViews(true);
DialogFactory.ToastDialog(this, "Login", "Email format is incorrent!", 0);
}
}
}
else
{
DialogFactory.ToastDialog(this, "Connect Error", "There is no internet,please connect the internet!", 0);
}
}
public override void initListner()
{
//back button
btn_regback.Click += delegate(object sender, EventArgs e) {
StartActivity(new Intent(this, typeof(LoginActivity)));
Finish();
};
//continue button
btn_continue.Click += delegate(object sender, EventArgs e) {
//reset color to black
clearColor();
//get edittext
string firstname = et_firstname.Text;
string lastname = et_lastname.Text;
string email = et_email.Text;
string phonenumber = et_phonenumber.Text;
//string password = et_password.Text;
//string confirmpwd = et_confirmpwd.Text;
//Empty check
if (string.IsNullOrEmpty(firstname))
{
tv_firstname.SetTextColor(Color.Red);
DialogFactory.ToastDialog(this, "Empty info", "Firstname cannot be empty!", 0);
}
else if (string.IsNullOrEmpty(lastname))
{
tv_lastname.SetTextColor(Color.Red);
DialogFactory.ToastDialog(this, "Empty info", "Lastname cannot be empty!", 0);
}
else if (string.IsNullOrEmpty(email))
{
tv_email.SetTextColor(Color.Red);
DialogFactory.ToastDialog(this, "Empty info", "Email cannot be empty!", 0);
}
else if (string.IsNullOrEmpty(phonenumber))
{
tv_phonenumber.SetTextColor(Color.Red);
DialogFactory.ToastDialog(this, "Empty info", "Phone number cannot be empty!", 0);
} /*else if (string.IsNullOrEmpty (password)) {
* tv_password.SetTextColor (Color.Red);
* DialogFactory.ToastDialog (this, "Empty info", "Password cannot be empty!", 0);
* } else if (string.IsNullOrEmpty (confirmpwd)) {
* tv_email.SetTextColor (Color.Red);
* DialogFactory.ToastDialog (this, "Empty info", "Confirm password cannot be empty!", 0);
* }*/
else
{
//email check
Match match = Regex.Match(email, "^(\\w)+(\\.\\w+)*@(\\w)+((\\.\\w{2,3}){1,3})$");
if (match.Success)
{
//check password and confirmpassword
//Create user and set info
user = new User();
user.FirstName = firstname;
user.LastName = lastname;
//user.Password = password;
user.Phone = phonenumber;
user.Email = email;
//connect to server
registerUser();
} /*else {
* DialogFactory.ToastDialog (this, "Password", "Password cannot match confirm password!", 0);
* tv_password.SetTextColor (Color.Red);
* tv_confirmpwd.SetTextColor (Color.Red);
* }*/
else
{
//email format incorrect
DialogFactory.ToastDialog(this, "Email Format", "Email format is incorrent!", 0);
tv_email.SetTextColor(Color.Red);
}
}
};
}
public override void OnBackPressed()
{
DialogFactory.toastNegativePositiveDialog(this, "Exit", "Are you sure to log out?", Constants.EXIT_CHOICE);
}
public void initListner()
{
sb_voice.ProgressChanged += ((sender, e) => {
if (e.FromUser)
{
setStreamVolume(e.Progress);
}
});
sb_video.ProgressChanged += delegate(object sender, SeekBar.ProgressChangedEventArgs e) {
if (e.FromUser)
{
if (vv.IsPlaying)
{
vv.SeekTo(e.Progress);
}
else
{
vv.SeekTo(e.Progress);
btn_play.SetBackgroundResource(Resource.Drawable.selector_btn_play);
}
}
};
//video buffer listener
vv.BufferingUpdate += delegate(object sender, IO.Vov.Vitamio.MediaPlayer.BufferingUpdateEventArgs e) {
updateSecondaryProgress(e);
};
//set buffered slow listener
vv.Info += delegate(object sender, IO.Vov.Vitamio.MediaPlayer.InfoEventArgs e) {
switch (e.P1)
{
//buffer started
case (int)MediaInfo.BufferingStart:
ll_loading.Visibility = ViewStates.Visible;
break;
//buffer end then play
case (int)MediaInfo.BufferingEnd:
hideLoadingCtl();
break;
default:
break;
}
};
if (!screen.Type.Equals("audio-text-video"))
{
vv.Completion += delegate(object sender, IO.Vov.Vitamio.MediaPlayer.CompletionEventArgs e) {
vv.SeekTo(0);
tv_current_position.Text = Utils.formatMillis(0L);
var activity = Activity as ScreensActivity;
//set iswatched
editor.PutBoolean(screen.Id + "", true).Commit();
tv_loading.Text = "You have watched this video!";
activity.validateBtns();
};
}
btn_voice.Click += delegate(object sender, EventArgs e) {
toggleMute();
};
btn_exit.Click += delegate(object sender, EventArgs e) {
DialogFactory.toastNegativePositiveDialog(Activity, "Return", "Are you sure to return to Lesson List?", Constants.RETURN_LIST_NEG);
};
btn_play.Click += delegate(object sender, EventArgs e) {
play();
};
btn_share.Click += delegate(object sender, EventArgs e) {
//todo:share function
};
}
