IssueTracker

Component used: glance Version used: 1.1.1 Devices/Android versions reproduced on: All

We're planning on using glance widgets for an upcoming feature. We plan to use this by utilizing PreferencesGlanceStateDefinition to store some configuration data (ids to load data from the app, user preferences etc). We've thought about storing this in the app and referencing it by a UUID we stick in the widget store, but we'd have the same problem.

A simplified version of our widget is

 override suspend fun provideGlance(context: Context, id: GlanceId) {
      val initialLoad = withContext(dispatchers.io) { // Need to load an initial state so the first composition won't flash with loading, etc
        val prefs = getAppWidgetState(context, stateDefinition, id) // will never work when widget is called via requestPinGlanceAppWidget
        context.repo.loadData(prefs[id1key], prefs[id2key])  // will return an empty/not found object if values are null
    }
    provideContent {
      val id1 = currentState(id1key)
      val id2 = currentState(id2key)
      val state = produceState(initialValue = initialLoad, id1, id2) {
          context.repo.observeData(id1, id2).collect { value = it} // when widget.compose is called this value is never used since initialValue is used

    // UI follows
    }
}
  

This works great in practice, the widget updates quickly without any flashing and we can support multiple widgets with different data.

Where we run into a problem is when using requestPinGlanceAppWidget. I can easily provide an instance of the widget using preferencesOf(key to value) for the composable in provideContent but the call to getAppWidgetState will bomb since a real widget isn’t created yet, which results in null values.

Would it be possible (or am I missing something obvious) to pass initialState to provideGlance?