Enumeration ConnectionStateType

3: The SDK is connected to Agora's edge server and joins a channel. You can now publish or subscribe to a media stream in the channel. If the connection to the channel is lost because, for example, the network is down or switched, the SDK automatically tries to reconnect and triggers:

• The ConnectionStateChanged callback, and switches to the Reconnecting state.

2: The SDK is connecting to Agora's edge server.

• When the app calls joinChannel, the SDK starts to establish a connection to the specified channel, triggers the ConnectionStateChanged callback, and switches to the Connecting state.
• When the SDK successfully joins the channel, the SDK triggers the ConnectionStateChanged callback and switches to the Connected state.
• After the SDK joins the channel and when it finishes initializing the media engine, the SDK triggers the JoinChannelSuccess callback.

1: The SDK is disconnected from Agora's edge server.

• This is the initial state before joinChannel.
• The SDK also enters this state when the app calls leaveChannel.

5: The SDK fails to connect to Agora's edge server or join the channel. You must call leaveChannel to leave this state, and call joinChannel again to rejoin the channel.

4: The SDK keeps rejoining the channel after being disconnected from a joined channel because of network issues.

• If the SDK cannot rejoin the channel within 10 seconds after being disconnected from Agora’s edge server, the SDK triggers the ConnectionLost callback, stays in the Reconnecting state, and keeps rejoining the channel.