public void CopyGuideFiles(LocalModule localModule)
{
if (Environment.ExternalStorageState.Equals(Environment.MediaMounted))
{
string curPath = AppStorageManager.GetInstance(mContext).DefaultFolder;
if (!AppFileUtil.NeedScopedStorageAdaptation())
{
curPath = AppFileUtil.DefaultDocumentDirectory;
Java.IO.File file = new Java.IO.File(curPath);
if (!file.Exists())
{
if (!file.Mkdirs())
{
return;
}
}
Java.IO.File sampleFile = new Java.IO.File(curPath + Java.IO.File.Separator + "Sample.pdf");
if (!sampleFile.Exists())
{
localModule.CopyFileFromAssertsToTargetFile(sampleFile);
}
Java.IO.File guideFile = new Java.IO.File(curPath + Java.IO.File.Separator + "complete_pdf_viewer_guide_android.pdf");
if (!guideFile.Exists())
{
localModule.CopyFileFromAssertsToTargetFile(guideFile);
}
}
else if (!TextUtils.IsEmpty(curPath))
{
Uri uri = AppFileUtil.ToDocumentUriFromPath(curPath);
if (AppFileUtil.IsDocumentTreeUri(uri))
{
DocumentFile directory = AppStorageManager.GetInstance(mContext).GetExistingDocumentFile(uri);
if (directory == null)
{
return;
}
string fileName = "Sample.pdf";
DocumentFile file = directory.FindFile(fileName);
if (file == null)
{
file = directory.CreateFile(AppFileUtil.GetMimeType(fileName), fileName);
localModule.CopyFileFromAssertsToTargetFile(file);
}
fileName = "complete_pdf_viewer_guide_android.pdf";
file = directory.FindFile(fileName);
if (file == null)
{
file = directory.CreateFile(AppFileUtil.GetMimeType(fileName), fileName);
localModule.CopyFileFromAssertsToTargetFile(file);
}
}
localModule.SetCurrentPath(curPath);
}
}
}
/// <summary>
/// liefert das DocumentFile für eine Datei oder ein Verzeichnis (API level 14)
/// <para>Wenn das Objekt noch nicht ex., wird es erzeugt. Auch ein notwendiger Pfad wird vollständig erzeugt.</para>
/// </summary>
/// <param name="storagename">z.B. "primary" oder "19F4-0903"</param>
/// <param name="volpath">abs. Pfad im Volume</param>
/// <param name="isDirectory">Pfad bezieht sich auf eine Datei oder ein Verzeichnis</param>
/// <returns></returns>
public DocumentFile GetDocumentFile(string storagename, string volpath, bool isDirectory)
{
global::Android.Net.Uri rooturi = GetTreeDocumentUri(storagename);
DocumentFile document = DocumentFile.FromTreeUri(Activity.ApplicationContext, rooturi);
string[] pathelems = volpath.Split(new char[] { '/' }, StringSplitOptions.RemoveEmptyEntries);
for (int i = 0; document != null && i < pathelems.Length; i++)
{
DocumentFile nextDocument = document.FindFile(pathelems[i]);
if (nextDocument == null)
{
if ((i < pathelems.Length - 1) || isDirectory)
{
nextDocument = document.CreateDirectory(pathelems[i]);
}
else
{
nextDocument = document.CreateFile("", pathelems[i]);
}
}
document = nextDocument;
}
System.Diagnostics.Debug.WriteLine("AndroidGetDocumentFile(" + storagename + ", " + volpath + ", " + isDirectory.ToString() + ") = " + (document != null && (isDirectory == document.IsDirectory)).ToString());
return(document != null ?
(isDirectory == document.IsDirectory ? document : null) :
null);
}
public async Task <ExistenceCheckResult> CheckExistsAsync(string name, CancellationToken cancellationToken = default(CancellationToken))
{
var selectedFile = folder.FindFile(name);
if (selectedFile == null)
{
return(ExistenceCheckResult.NotFound);
}
else if (selectedFile.IsFile)
{
return(ExistenceCheckResult.FileExists);
}
else
{
return(ExistenceCheckResult.FolderExists);
}
}
public override async Task <StorageFile> GetFileAsync(string name, CancellationToken token)
{
return(await Task.Run(() =>
{
var item = _directoryDocument.FindFile(name);
if (item == null)
{
throw new FileNotFoundException("There is no file with this name.");
}
if (!item.IsFile)
{
throw new ArgumentException("The item with given name is a folder.", nameof(name));
}
return StorageFile.GetFromSafDocument(item);
}, token));
}
/// <summary>
/// liefert das DocumentFile für eine Datei oder ein Verzeichnis, wenn es existiert (sonst null) (API level 14)
/// </summary>
/// <param name="storagename">z.B. "primary" oder "19F4-0903"</param>
/// <param name="volpath">abs. Pfad im Volume</param>
/// <returns></returns>
public DocumentFile GetExistingDocumentFile(string storagename, string volpath)
{
global::Android.Net.Uri rooturi = GetTreeDocumentUri(storagename);
DocumentFile document = DocumentFile.FromTreeUri(Activity.ApplicationContext, rooturi);
string[] pathelems = volpath.Split(new char[] { '/' }, StringSplitOptions.RemoveEmptyEntries);
for (int i = 0; document != null && i < pathelems.Length; i++)
{
DocumentFile nextDocument = document.FindFile(pathelems[i]);
document = nextDocument;
}
System.Diagnostics.Debug.WriteLine("AndroidGetExistingDocumentFile(" + storagename + ", " + volpath + ") = " + (document != null).ToString());
return(document);
}