AppStudio 4: Shake your booty!

One of the handy gestures you can do on a mobile device that you cannot do on the desktop is shake the entire device. It’s a handy way for the user to tell your app to clear the screen, discard the current transaction, start a new game, etc.

To do this, you need to take measurements on the accelerometer and detect a shaking motion. This is a bit complex to do: AppStudio 4 adds a library to make this easy.

To add the library, click on “Project Properties and Global Code”. The Toolbox of libraries will display as above. Select “Shake Library”.

Now, add the following code to your app:

Sub window_onshake()
  MsgBox "Thanks for the shake!"
End Sub

That’s all there is to do. If you want to try a sample app, it is in Samples Folder 8.

(Thanks to Alex Gibson for making this library)