Lock screen UI has weird edge cases

[tordans]

Lock screen UI has weird edge cases

[bryceco]

I'll try to fix these edge cases as best I can. The commit I just did will remove any widgets when the app terminates.

Because the lock-screen widgets are running in a system process, not our app, they have a life of their own:

• We can send them messages to update their state.
• They can send a message to the app in response to button clicks (without opening the app).
• If you click them somewhere other than a button then they open the app.

A widget will only disappear if we send it a message telling it to, so there is still an edge-case where if the app crashes then the widget will stay around until the system decides to remove it.

[bryceco]

Since there aren't any other cases being reported I'm closing this.