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[英]SKStoreReviewController how to detect that user has turned off Rate This App (RTA) in settings or 3 times limit has reached?
[英]Disable selection after an array has reached a limit
我正在使用HTagView庫顯示標簽列表。 我已經填充了標簽,現在我想限制最多選擇3個。這是我嘗試這樣做的地方:
var selectedInterests = [Int]()
func tagView(_ tagView: HTagView, tagSelectionDidChange selectedIndices: [Int]) {
selectedInterests.removeAll()
for i in selectedIndices {
selectedInterests.append(i)
if selectedInterests.count > 3 {
print("limit reached")
selectedInterests.removeLast()
tagView.reloadData()
}
}
}
我試圖刪除數組的最后一項,但這也行不通。 大多數示例都基於表或collectionView的indexPath顯示此示例。 如何通過兩者都不實現呢?
您需要做的就是,如果已經選擇的標簽的數量大於3,則立即取消選擇標簽。我還將使該數量成為變量,您可以輕松更改以下值:
var maxTagsSelected = 3
func tagView(_ tagView: HTagView, tagSelectionDidChange selectedIndices: [Int]) {
if selectedIndices.count > maxTagsSelected {
tagView.deselectTagAtIndex(selectedIndices[maxTagsSelected])
}
}
變量maxTagsSelected將始終是selectedIndices中最后一個元素的索引。
嘗試這個..
var selectedInterests = [Int]()
func tagView(_ tagView: HTagView, tagSelectionDidChange selectedIndices: [Int]) {
selectedInterests.removeAll()
selectedInterests = selectedIndices[0..<3]
}
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