回答編集履歴
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didSet
test
CHANGED
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@@ -1 +1,119 @@
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表示ONのアイテムを抽出して、それをTableViewに与えて下さい。
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# コード追記
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```swift
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var joinedItems = [NSDictionary]() //参加済アイテム保存用
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var items = [NSDictionary]() {
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didSet {
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//itemsn更新時にjoinedItemsを生成し直す
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joinedItems = items.filter {$0["PointPaid"] as? Int != nil}
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}
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}
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```
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という仕組みで、自動的に表示ONのアイテムを抽出できるので、これをTableViewに与えてください。
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* セル数取得 `items.count` → `joinedItems`
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* セル生成時 `items[indexPath.row]` → `joinedItems[indexPath.row]`
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## 動作確認
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```swift
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items += [
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["id": 0, "PointPaid": 123],
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["id": 1],
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["id": 2, "PointPaid": "abc"],
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]
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print(joinedItems)
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/*
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[{
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PointPaid = 123;
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id = 0;
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}]
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*/
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items.append(["id": 3, "PointPaid": 999])
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print(joinedItems)
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/*
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[{
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PointPaid = 123;
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id = 0;
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}, {
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PointPaid = 999;
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id = 3;
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}]
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*/
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items.remove(at: 0) //id0削除
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print(joinedItems)
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/*
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[{
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PointPaid = 999;
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id = 3;
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}]
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*/
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```
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# ひとりごと
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116
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参考にした記事が古いんだと思いますが、NSDictionaryではなくDictionaryの方がいいし、いちいちIndexPathをNSIndexPathにキャストしなくていいです。
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