リブログ記事”スマホから作成したアプリで写真が取り込めなかった”
アプリで解決しよう写真のメタデータには撮影日が登録されていますこの情報を使ってファイル名を変更しますフォルダーを指定して、フォルダー内のファイルをリネイムしますーー＞using System;using System.Diagnostics;using MetadataExtractor;using MetadataExtractor.Formats.Exif;namespace DSC_rename{ public partial class Form1 : Form { String picdir; public Form1() { InitializeComponent(); } private void Form1_Load(object sender, EventArgs e) { picdir = System.Environment.GetFolderPath(Environment.SpecialFolder.MyPictures); textBox1.Text = picdir; } private void Getfiles() { String t = "_"; picdir = textBox1.Text; string[] names =System.IO.Directory.GetFiles(picdir, "*.*"); int n = 0; foreach (string name in names) { int p = name.IndexOf(t); if (p != -1) { string nname = name.Substring(p); FileInfo fi = new FileInfo(name); string cdate = (fi.CreationTime.ToString()); var directories = ImageMetadataReader.ReadMetadata(name); string dateTaken = GetTag(directories, ExifDirectoryBase.TagDateTimeOriginal); String[] w = dateTaken.Split(" "); if (dateTaken != "") { cdate = w[0] + "_" + w[1]; cdate = cdate.Replace("/", ""); cdate = cdate.Replace(":", ""); } System.IO.Directory.Move(name, picdir + "\\" + cdate + nname); //Debug.Print(c + "_" + nname); n++; } } label1.Text = n.ToString(); } private void button1_Click(object sender, EventArgs e) { Getfiles(); } static string GetTag(IReadOnlyList<MetadataExtractor.Directory> dirs, int tagId) { foreach (var dir in dirs) { if (dir.ContainsTag(tagId)) { // XP 系タグは UTF-16LE の byte[] → string if (dir is ExifIfd0Directory && tagId is ExifDirectoryBase.TagWinSubject or ExifDirectoryBase.TagWinKeywords or ExifDirectoryBase.TagWinComment) { var bytes = dir.GetByteArray(tagId); return System.Text.Encoding.Unicode.GetString(bytes).Trim('\0'); } return dir.GetDescription(tagId) ?? ""; } } return ""; } private void label1_Click(object sender, EventArgs e) { } private void button2_Click(object sender, EventArgs e) { var dialog = new FolderBrowserDialog { Description = "フォルダーを選択してください", ShowNewFolderButton = true }; if (dialog.ShowDialog() == DialogResult.OK) { string path = dialog.SelectedPath; //Console.WriteLine($"選択されたフォルダー: {path}"); textBox1.Text = path; } } }}
