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我試圖從文檔目錄中檢索圖像以填充集合視圖,但我的try
塊返回error
,但我不知道錯誤是什麼或它爲什麼發生。嘗試拋出錯誤,但爲什麼?
func refreshCollectionView() {
let path = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true)[0] as String
let url = NSURL(fileURLWithPath: path)
let filePath = url.appendingPathComponent(imagesDirectoryPath)?.path
let fileManager = FileManager.default
if fileManager.fileExists(atPath: filePath!) {
print("FILE AVAILABLE")
do {
titles = try FileManager.default.contentsOfDirectory(atPath: imagesDirectoryPath)
print(titles.count)
for image in titles {
let data = FileManager.default.contents(atPath: imagesDirectoryPath + "/\(image)")
let image = UIImage(data: data!)
myImages.append(image!)
}
self.collectionView?.reloadData()
}
catch {
print("Error")
}
}
else {
print("FILE NOT AVAILABLE")
}
}
永遠不會執行該生產線print(titles.count)
,並抓住了錯誤,但什麼是錯誤?