timer does not work in the .exe file

I wanna let a .m script file work at intervals. So I write some test codes shown below. It works fine in MATLAB--two emails are sent. But after I package it to the .EXE file using deploytool, it doesn't work correctly -- only one test email is sent.

OS :Windows 7 Ver:MATLAB 2015b 32-bit

.net 4.0/runtime 9.0/Microsoft Windows SDK 7.1 are all installed.

%%file: exetest.m
itimer=timer('Name','myTest','TimerFcn',@timertry, ...
       'Period', 5,'ExecutionMode','fixedspacing','TasksToExecute',2); 

start(itimer);

 %%file: timertry.m
 function timertry(obj,event)
 mySendMail('[e-mail]','test','This is a test email');

%%file: mySendMail.m
function mySendMail(tEmail,subject,content)
% a packaged function
myaddress='[e-mail]';
setpref('Internet','SMTP_Server','******');
setpref('Internet','E_mail',myaddress);
props = java.lang.System.getProperties;
props.setProperty('mail.smtp.auth','true');
setpref('Internet','SMTP_Username',myaddress);
setpref('Internet','SMTP_Password','*****');

sendmail(tEmail,subject,content);

Answer 1

[Walter Roberson]

Your code is not waiting for the timer to execute. Your code exits right after the start(timer) . That clears the workspace, including deleting the timer.

[Mr stone]

thank you very much! But how to let the timer exist in the workspace until the timer is ended by itself when it's in a .EXE file? I really cannot find related information on the web.

[Walter Roberson]

You can use a timer StopFcn callback http://www.mathworks.com/help/matlab/ref/timer-class.html

Put a uiresume in there and put a uiwait in the main routine so that it pauses until the resume is executed

[Mr stone]

Thanks a lot.You've really done me a big favor.