Prevent Glance widget row ID collisions that cause “can’t show content”

[Copilot]

Users reported home screen widgets rendering as “can’t show content” instead of quote data. The widget pipeline was vulnerable to duplicate/colliding row IDs in Glance lazy grid rendering, which can break widget composition.

• Widget rendering keying hardening

  • Updated QuotesGrid in GlanceStocksWidget to stop keying rows by symbol.hashCode().
  • Introduced deterministic per-row IDs derived from symbol occurrence sequencing, ensuring IDs are unique for repeated symbols and stable within a render pass.
  • Kept the rest of the widget rendering/data flow unchanged to minimize behavioral risk.

• Why this addresses the issue

  • Glance lazy containers require unique item IDs; collisions or duplicates can invalidate rendering and surface as host-level “can’t show content”.
  • The new ID strategy removes hash-collision risk from row identity generation.

val keyedQuotes = remember(quotes) {
    val symbolOccurrences = mutableMapOf<String, Int>()
    val stableIds = mutableMapOf<String, Long>()
    var nextId = 0L
    quotes.map { quote ->
        val currentCount = symbolOccurrences.getOrDefault(quote.symbol, 0)
        symbolOccurrences[quote.symbol] = currentCount + 1
        val stableKey = "${quote.symbol}#${currentCount + 1}"
        val itemId = stableIds.getOrPut(stableKey) { nextId++ }
        itemId to quote
    }
}

items(items = keyedQuotes, itemId = { it.first }) { keyedQuote ->
    val stock = keyedQuote.second
    // render row
}

[premnirmal]

A widget cannot have duplicate symbols, so what's the need for creating the stableIDs and keyedQuotes?