2020-12-11 00:20:19 +08:00
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Linphone X UWP tutorial 06_group_chat
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========================================
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2021-12-23 23:49:01 +08:00
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In this step we will tackle two new concepts: group chats and multipart messages. To enable
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those new features we are going to use Flexisip as a backend (see group ChatRoom creation). Flexisip
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is a complete and modular SIP server suite. If you need more informations about Flexisip you can read
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this [Flexisip presentation](http://linphone.org/technical-corner/flexisip) or
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[Contact us](http://linphone.org/contact).
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We will create a new page so you can prepare your participant list before creating a group chat, see
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CreateGroupChatRoom.xaml(.cs) and CoreService.cs to learn how to create group chats.
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We will update the ChatPage.xaml(.cs) and the MessageDisplay.xaml(cs) so you can send and display multipart
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messages correctly. Multipart messages are allowed by default in flexisip, you can try it right now in a group chat room.
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In a group ChatRoom some events that can occur (subject change, admin status modification...) will also be displayed. See EventDisplay.xaml(.cs).
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And lastly we will change the way we display the ChatRoom in the list (ChatsPage.xml). See ChatRoomToStringConverter.cs.
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New/updated files :
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```
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06_group_chat
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└───Controls :
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│ │ ContentDisplay.xaml(.cs) : Inner control now used in MessageDisplay. Contains the code to display
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│ │ one Linphone.Content object.
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│ │
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│ │ EventDisplay.xaml(.cs) : Inner control used in ChatPage to display all events that
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│ │ are not messages.
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│ │
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│ │ GroupChatDisplay.xaml(.cs) : A control used in the ChatPage to display the participant list
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│ │ and some group chat controls.
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│ │
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│ │ MessageDisplay.xaml(.cs) : A user control to display chat bubbles with more
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│ │ information. Improved from the previous step to display all the
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│ │ contents of multipart messages (using ContentDisplay).
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│ │
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│
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└───Service :
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│ │ CoreService.cs : A singleton service which contains the Linphone.Core.
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│ │ Take a look at the LogIn method to see how to setup a conference factory.
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│
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└───Shared :
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│ │ ChatRoomToStringConverter.cs : a class that implements IValueConverter to display
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│ │ the chat room name depending on its type.
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│ │
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│ │ Utils.cs : Utility class to gather static methods used in different other classes.
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│
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└───Views :
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│ │
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│ │ ChatPage.xaml(.cs) : This is the frame displayed when you select a chat room.
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│ │ You can now send and receive multipart when you are in a group chat room.
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│ │ And when you open a group chat room you have access to a new menu with
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│ │ the participants list and new controls (see GroupChatDisplay).
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│ │
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│ │ ChatsPage.xaml(.cs) : ChatRoom list, updated to display different information according
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│ │ to the chat room type (also see ChatRoomToStringConverter.cs)
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│ │
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│ │
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```
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