In app designer the timer call back keeps running after xing out of application.

The timer object is created and started with the code at startup:

% Code that executes after component creation

function startupFcn(app)

%Creating timer object

t=timer('TimerFcn',@app.TimerCallback,...

'ExecutionMode','fixedRate',...

'Period',1.0,...

'TasksToExecute',Inf);

%Start timer

start(t);

tic;

end

My TimerCallback function is:

function TimerCallback(app, obj, event, string_arg)

toc;

end

So, how can I run delete(t) to delete the timer object so that is stops running? It there a tear down function where I can insert this delete instruction?

The only way I get it to stop is by exiting app designer. Otherwise, it keeps creating more and more instances of the timer and runs them all!

Answer 1

[VBBV]

can you try placing the delete(t) inside the timercallback function ?

function startupFcn(app)
    %Creating timer object
    t=timer('TimerFcn',@app.TimerCallback,...
       'ExecutionMode','fixedRate',...
       'Period',1.0,...
       'TasksToExecute',Inf);
    %Start timer
    start(t);
    tic;
end

function TimerCallback(app, obj, event, string_arg)
    toc;
    % insert after toc
    delete(t)
end