Psuedo code main activity & fragment core lifecycle and state design

psuedo

MAIN ACTIVITY —

String sockToken;
String sockUrl;
ChannelFragment mChannelFragment;

onCreate(Bundle savedState) {
	super.onCreate(savedState);
	
	if (savedState != null) {
	sockToken = savedState.getString(“sockToken”, “”);
	sockUrl = savedState.getString(“sockUrl”, “”);
	} else {
	sockToken = null;
	sockUrl = null;

	// During initial setup, plug in the channel fragment.
         mChannelFragment = new ChannelFragment();
         mChannelFragment.setArguments(getIntent().getExtras());
         getFragmentManager().beginTransaction().add(android.R.id.content, details).commit();
	}
}

onResume() {
	super.onResume();
	if (AuthUtils.userIsAuthenticated()) {
		instantiateWebSocket();
		getEnvironment(); 
		/*
		will need more API research on this getEnvironment() idea
		basically what this would do is get a list of all channel
		objects and members, at the end there could be a statement
		to loadInitialChatConversation in channel fragment on null
		check
		*/
	} else {
		// go to welcome screen, clear any saved data
	}
}

onSaveInstanceState(Bundle outState) {
	super.onSaveInstanceState(outState);
	outState.putString(“sockToken”, sockToken);
	outState.putString(“sockUrl”, sockUrl);
}

private void instantiateWebSocket() {
	/*
	If the sock variables are null we should POST to /sessions to retrieve new ones.
	Afterwards make connection to socket server, and register listeners
	*/
}


CHANNEL FRAGMENT —

String channelType;
int channelId;
String enteredMsgText;

onCreateView(Bundle savedState) {
	super.onCreateView(savedState);

	if (savedState != null) {
	et_message.setText(savedState.getString(“curMsg”, “”);
	channelType = savedState.getString(“curChannelType”, “”);
	channelId = savedState.getInt(“curChannelId”, 0);

	loadInitialChannelConversation(50);
	} 

	/*
	display loading animation in view, the main activity will
	set channel variables and call loadInitialChannelConversation
	once auth has been checked and channel data is grabbed
	*/
}

onSaveInstanceState(Bundle outState) {
	super.onSaveInstanceState(outState);
	outState.putString(“curMsg”, enteredMsgText);
	outState.putInt(“curChannelId”, channelId);
	outState.putString(“curChannelType”, channelType);
}

public static void loadInitialChannelConversation(int msgLimit) {
	/*
	Would load initial channel convo from REST for the last msgLimit amount of messages.
	Will also differentiate adapters later on based on channelType, adapters will then clear previous
	messages and add all new ones, this should keep the socket in sync as well, may add some
	methods to onDataAvailable to check if a received message is missed in the time since this call
	is made.
	*/
}