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Matlab App Designer: update fields in GUI from callback

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JvdS
JvdS 2022-4-19
回答： chrisw23 2022-4-20
I have created an app in App Designer. The Main app is called "app1.mlapp" and has a button which calls the second GUI called "PreferenceAppExample.mlapp".
I want to load the 2nd GUI from app1.mlapp by clicking the button "LoadNewWindow", this works.
Now the second GUI has options for a numeric field and a drop down list. Once I change the settings in the second GUI, I close it, and open it again. Then I see the values I just changed are restored to their default value. How do I get to see the latest selection of options?
The example is attached. Help would be appreciated.

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chrisw23
chrisw23 2022-4-20
Add a custom event to your app and send a notification to the calling instance when then app will be closed. You have the option to add any data to be saved (i.e. uicontrol states) to the event. When you reopen the app, you can initialize all uicontrols with the previously saved data.

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