public async Task <bool> PickAndShowFile()
{
FilePicker _FilePicker = FilePicker.GetInstance();
string thumbnail = null;
string CheckType = null;
if (!await _FilePicker.CheckPermission())
{
return(false);
}
var pickedFile = await _FilePicker.PickAndShowFile();
if (pickedFile == null)
{
return(false);
}
else
{
CheckType = _FilePicker.IsSupportedType(pickedFile.FileName);
if (CheckType == null)
{
await App.Current.MainPage.DisplayAlert("Something happen....", "Selected file format not supported", "Ok");
return(false);
}
switch (CheckType)
{
case "Img":
thumbnail = pickedFile.FilePath;
break;
case "Video":
thumbnail = "round_movie_black_48.png";
break;
case "PDF":
thumbnail = "round_insert_drive_file_black_48.png";
break;
}
Attachment.FileName = pickedFile.FileName;
Attachment.Thumbnail = thumbnail;
Attachment._FileData = pickedFile;
OnPropertyChanged("Attachment");
return(true);
}
}
public async Task AddAttachment()
{
FilePicker _FilePicker = FilePicker.GetInstance();
string Thumbnail = "";
if (!await _FilePicker.CheckPermission())
{
return;
}
var pickedFile = await _FilePicker.PickAndShowFile();
if (pickedFile != null)
{
string CheckType = _FilePicker.IsSupportedType(pickedFile.FileName);
if (CheckType == null)
{
await App.Current.MainPage.DisplayAlert("Something happen....", "Selected file format not supported", "Ok");
return;
}
switch (CheckType)
{
case "Img":
Thumbnail = pickedFile.FilePath;
break;
case "Video":
Thumbnail = "round_movie_black_48.png";
break;
case "PDF":
Thumbnail = "round_insert_drive_file_black_48.png";
break;
}
BoardMessageAttachment = new Attachment(pickedFile.FileName, Thumbnail, pickedFile);
Debug.Write(BoardMessageAttachment.Thumbnail);
IsAttach = true;
OnPropertyChanged("IsAttach");
OnPropertyChanged("BoardMessageAttachment");
}
}
public SocialViewModel()
{
OnAddMoments = new Command(async() => {
await App.Current.MainPage.Navigation.PushAsync(new AddMoments());
});
OnPickFileCommand = new Command(async() => {
FilePicker filePicker = FilePicker.GetInstance();
string CheckType = null;
string thumbnail = null;
if (!await filePicker.CheckPermission())
{
return;
}
var pickedFile = await filePicker.PickAndShowFile();
if (pickedFile == null)
{
return;
}
else
{
CheckType = filePicker.IsSupportedMomentType(pickedFile.FileName);
if (CheckType == null)
{
await App.Current.MainPage.DisplayAlert("Something wrong....",
"File format not supported.\nSupport format: \n*.MP4 \n*.jpg*\n*.png",
"Ok");
return;
}
switch (CheckType)
{
case "Img":
thumbnail = pickedFile.FilePath;
break;
case "Video":
thumbnail = "round_movie_black_48.png";
break;
}
}
IsOnAttachmentSection = true;
_Attachment.FileName = pickedFile.FileName;
_Attachment._FileData = pickedFile;
_Attachment.Thumbnail = thumbnail;
OnPropertyChanged("IsOnAttachmentSection");
OnPropertyChanged("_Attachment");
});
OnSendToCommand = new Command(async() => {
try
{
if (string.IsNullOrWhiteSpace(Description) && string.IsNullOrEmpty(_Attachment.FileName))
{
await App.Current.MainPage.DisplayAlert("Something wrong...", "Must write something or attach some photo/video.", "Ok");
return;
}
}
catch (NullReferenceException) {
}
Moment _Moment = new Moment(UserSetting.UserEmail, UserSetting.UserName, Description, _Attachment);
await App.Current.MainPage.Navigation.PushAsync(new MomentSendTo(_Moment));
});
OnDeleteCommand = new Command(() =>
{
_Attachment = null;
IsOnAttachmentSection = false;
OnPropertyChanged("IsOnAttachmentSection");
});
OnClickAttachment = new Command <string>(async(string uri) => {
await App.Current.MainPage.Navigation.PushAsync(new WebViewAttachment(uri));
});
}