MATLAB: How to enable a button after x seconds in MATLAB GUI

clockclock instancetimervoice recording

Hi,

I am recording an audio. I have a start button and a stop button in GUI. When someone clicks start, the audio starts getting recorded.

Now, I want to enable the stop button only after x seconds. Where x could be 0.5 seconds, 1 seconds or whatever. How could I know that x seconds have passed and now its time to turn on the stop button.

Basically, I don't know how to start a clock and obtain its value. Can someone please help me with it?

Thank you.

Best Answer

function testtimebutton
figure
t = timer('TimerFcn','nan;','StopFcn',@endtimer, 'startdelay',... 2,'ExecutionMode','singleshot');
pbh1 = uicontrol(gcf,'Style','pushbutton','String','Start timer',...
    'Position',[10 90 60 40],...
    'callback',@stimer);
pbh2 = uicontrol(gcf,'Style','pushbutton','String','Button',...
    'Position',[10 30 60 40],...
    'enable','off','callback','disp(''You pressed the Button'')');
      function endtimer(obj,event)
          set(pbh2,'enable','on')
          disp('timer stopped, Button enabled')
      end
      function stimer(obj,event)
          start(t)
          disp('timer started')
          set(pbh2,'enable','off')
      end
end

Related Solutions

MATLAB: Having problem in placing a timer behind a togglebutton for audio recording!

%code to start recording and start record 
 set(hObject,'enable','off') 
 pause(2) 
 set(hObject,'enable','on') 
 %now the user can click again on the button

MATLAB: Call a Pushbutton within a timer object using guide

Daemonic - you should be able to call the callback as you would any other function provided that you pass in the correct parameters (in particular, the handle to the control that you wish to invoke the callback on).

But instead of doing this, why not create a function that has the code common to your two callbacks and invoke that from both? Your code would then look something like

 function Record_Callback(hObject, eventdata, handles)
 RecordStatus = get(hObject,'Value');
 runstr=get(hObject,'string');
 if RecordStatus == 1
    % start recording
 else
    % stop recording

    StopRecording(handles);
 end

In your timer stop function (which perhaps could be named OnTimerStoppedCallback or something similar), you would do

 function StopRNG_callback(obj,event,hObject)
 % stop recording
 StopRecording(guidata(hObject);

Finally, your StopRecording function would do all of the work

 function StopRecording(handles)
 % do stuff...

All the code to stop the recording is in one function that is called by either callback.

Best Answer

Related Solutions

MATLAB: Having problem in placing a timer behind a togglebutton for audio recording!

MATLAB: Call a Pushbutton within a timer object using guide

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