「SwiftUI」生成导出CSV文件
#
func exportForCSV() {
do {
let csv = try! CSVWriter(stream: .toMemory())
// Write a row
try! csv.write(row: ["row1", "row2", "row3"])
// Write fields separately
let folders = folderStore.getAll()
for folder in folders {
let groups = folder.getAllGroup()
for group in groups {
let items = group.getAllItems()
for item in items {
csv.beginNewRow()
try! csv.write(field: "\(folder.name!)")
try! csv.write(field: "\(group.name!)")
try! csv.write(field: "\(item.name!)")
try! csv.write(field: "\(item.price!)")
try! csv.write(field: "\(item.detail!)")
try! csv.write(field: "\(item.rate)")
try! csv.write(field: "\(item.mainDate!.toString())")
try! csv.write(field: "\(item.url!)")
try! csv.write(field: "\(item.getTagNames())")
if item.goalName != "" {
try! csv.write(field: "\(item.goalName!)")
try! csv.write(field: "\(item.goalDate!.toString())")
}else{
try! csv.write(field: "")
try! csv.write(field: "")
}
try! csv.write(field: "\(item.memo!)")
try! csv.write(field: "\(TimeLineHelper.getTimeData(data: item.timeLine!))")
try! csv.write(field: "\(item.isLike)")
try! csv.write(field: "\(item.isArchive)")
try! csv.write(field: "\(item.archiveMemo ?? "")")
try! csv.write(field: "\(item.isHide)")
}
}
}
csv.stream.close()
// Get a String
let csvData = csv.stream.property(forKey: .dataWrittenToMemoryStreamKey) as! Data
let csvString = String(data: csvData, encoding: .utf8)!
print(csvString)
let enc = CFStringConvertEncodingToNSStringEncoding(UInt32(CFStringEncodings.GB_18030_2000.rawValue))
let fileName = "MyThings.csv"
let path = NSURL(fileURLWithPath: NSTemporaryDirectory()).appendingPathComponent(fileName)
do {
try csvString.write(to: path!, atomically: true, encoding: String.Encoding(rawValue: enc))
} catch {
print("Failed to create file")
print("\(error)")
}
print(path ?? "not found")
var filesToShare = [Any]()
filesToShare.append(path!)
let activityViewController = UIActivityViewController(activityItems: filesToShare, applicationActivities: nil)
let viewController = Coordinator.topViewController()
activityViewController.popoverPresentationController?.sourceView = viewController?.view
viewController?.present(activityViewController, animated: true, completion: nil)
} catch {
print("Failed to create file")
print("\(error)")
}
}
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上次更新: 2022/08/16, 03:21:24