How do I save state in app designer?

Question

Jonathan Wong 2017-1-15

编辑： Edward 2018-4-9

How do I save the state in app designer?

In other words, how do I save and restore the last value of a numeric field when opening an app made in app designer?

Answer 1

Jonathan Kwang 2017-1-23

One way to do this is the following:

Save the value in a "CloseRequestFcn" callback function for you app to a MAT file: https://www.mathworks.com/help/matlab/ref/uifigureappdesigner-properties.html#property_CloseRequestFcn
In the app's "StartupFcn" callback function, load the value from the MAT file and set the numeric field with this value. The documentation for App Designer's startup callback function can be found at the following link: https://www.mathworks.com/help/matlab/creating_guis/app-designer-startup-function.html