I have read a lot of questions and answers, but are not really satisfied and successful
My Problem: write with Kotlin to a sdcard to a specific directory
Working is
var filenamex = "export.csv"
var patt = getExternalFilesDirs(null)
var path = patt[1]
//create fileOut object
var fileOut = File(path, filenamex)
//create a new file
fileOut.createNewFile()
with getExternalFIlesDirs() I get the external storage and the sdcard. With path = patt[1] i get the adress of my sd-card.
this is
"/storage/105E-XXXX/Android/data/com.example.myApp/files"
This works to write data in this directory.
But I would like to write into an other directory, for example
"/sdcard/myApp"
A lot of examples say, this should work, bit it does not.
So I tried to take
"/storage/105E-XXXX/myApp"
Why doesn't it work? Ist the same beginning of storage /storage/105E-XXXX/, so it is MY sd-card.?
As I mentioned, it works on the sd-card, so it is not a problem of write-permission to the sdcard?
Any idea?
(I also failed with FileOutputStream and other things)
Try Out this..
var filenamex = "export.csv"
var path = getExternalStorageDirectory() + "//your desired folder"
var fileOut = File(path, filenamex)
fileOut.createNewFile()
Related
I tried to open a locally stored pdf with xamarin.
example code:
var files = Directory.GetFiles(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData));
var filepath = "file://" + files[0];
if (File.Exists(filepath))
{
await Launcher.OpenAsync(filepath);
}
But the file does not open. The only message I get is (android device):
what do I miss?
EDIT
the variable filepath contains:
file:///data/user/0/com.companyname.scgapp_pdfhandler/files/.config/test.pdf
also tried
file://data/user/0/com.companyname.scgapp_pdfhandler/files/.config/test.pdf
does not help
Figured I would add my comment as an answer for easier visibility in case others run into it in the future.
Pass a OpenFileRequest object instead, if you use a string it has to be the correct uri scheme for it. I suspect the uri scheme you are passing to it isn't something that is understood by the system
I found a useful script long ago and installed it. Now I want to delete it so it's no longer running, but I have no idea where it is stored so I can delete it. And I don't know it's exact filename to search for it. How do I find the script?? it watches a shared folder on Google Drive and emails me when the contents of the folder are changed.
I need to find this script and delete it.... suggestions????
How about something like this? It uses Mime types to find the scripts.
function findGoogleScripts() {
var ssNew = SpreadsheetApp.create("GoogleScriptsOnMyDrive");
SpreadsheetApp.setActiveSpreadsheet(ssNew);
var sheet = ssNew.getSheets()[0];
var files = DriveApp.getFiles();
sheet.appendRow(["File Name", "Mime Type"]);
while (files.hasNext()) {
var mType, theFile;
var tempArray = [];
theFile = files.next();
mType = theFile.getMimeType();
if (mType.equals("application/vnd.google-apps.script")) {
tempArray.push(theFile.getName());
tempArray.push(mType);
sheet.appendRow(tempArray);
}
}
}
The following code is great for renaming a file if you know the file is in applicationStorageDirectory
var sourceFile:File = File.applicationStorageDirectory;
sourceFile = sourceFile.resolvePath("Kalimba.snd");
var destination:File = File.applicationStorageDirectory;
destination = destination.resolvePath("test.snd");
try
{
sourceFile.moveTo(destination, true);
}
catch (error:Error)
{
trace("Error:" + error.message);
}
How do you set the sourceFile if all you have is the file's native path in a string? Like this:
D:\Software\files\testList.db
This throws errors:
sourceFile = sourceFile.resolvePath("D:\Software\files\testList.db");
The idea is I want to rename a file I had previously loaded into a var. I figured I'd extract the native path to a String var, null the File var (so the OS doesn't tell me it can't be renamed while the file is opened in flash), resolve that nativePath as the sourceFile, and use moveTo to rename the file on the hard drive.
Cheers for taking a look.
EDIT:
I've set up a test AIR app with only the following in it:
import flash.events.*;
import flash.filesystem.*;
var original = File.documentsDirectory;
original = original.resolvePath("D:\\Software\\test\\October.db");
var destination:File = File.documentsDirectory;
destination = destination.resolvePath("copy.db");
original.addEventListener(Event.COMPLETE, fileMoveCompleteHandler);
original.addEventListener(IOErrorEvent.IO_ERROR, fileMoveIOErrorEventHandler);
original.moveToAsync(destination);
function fileMoveCompleteHandler(event:Event):void {
trace(event.target); // [object File]
}
function fileMoveIOErrorEventHandler(event:IOErrorEvent):void {
trace("I/O Error.");
}
This fails, as does using D:\Software\test\October.db
I guess what I want to know it - how do you do the resolvePath thing if you already know the full path?
I guess what I want to know it - how do you do the resolvePath thing if you already know the full path?
You don't AFAIK. If your path is actually d:\software\test\october.db you can set a File ref like:
var original:File = new File();
original.nativePath = "d:\software\test\october.db";
In the file picker Windows 8 sample a file is saved like this:
CachedFileManager.DeferUpdates(file);
await FileIO.WriteTextAsync(file, stringContent);
FileUpdateStatus status = await CachedFileManager.CompleteUpdatesAsync(file);
I'm serialising an object as XML so doing it slightly differently:
// CachedFileManager.DeferUpdates(file);
var ras = await file.OpenAsync(FileAccessMode.ReadWrite);
var outStream = ras.GetOutputStreamAt(0);
var serializer = new XMLSerializer();
serializer.Write(myObject, outStream);
// FileUpdateStatus status = await CachedFileManager.CompleteUpdatesAsync(file);
It works with or without the CachedFileManager (commented out above).
So, should I include the CachedFileManager and if I do use it am I saving the file in the right way.
This code works and saves the file fine, but I don't like including code that I don't understand.
Yes, this code will work without CachedFileManager. But, when you use CachedFileManager, you inform the file provider that the file is in process of change. If your file is located on SkyDrive it is faster to create a file and upload it at once instead of update it multiple times.
You can have the full story there : http://www.jonathanantoine.com/2013/03/25/win8-the-cached-file-updater-contract-or-how-to-make-more-useful-the-file-save-picker-contract/
It simply tells the "repository" app to upload the file.
I've been trying to read a pre-built file with Car Maintenance tips, there's one in each line of my "Tips.txt" file. I've tried to follow around 4 or 5 different approaches but It's not working, it compiles but I get an exception. Here's what I've got:
using (IsolatedStorageFile store = IsolatedStorageFile.GetUserStoreForApplication())
{
using (StreamReader sr = new StreamReader(store.OpenFile("Tips.txt", FileMode.Open, FileAccess.Read)))
{
string line;
while ((line = sr.ReadLine()) != null)
{
(App.Current as App).MyTips.Insert(new DoubleNode(line));
}
}
}
I'm getting this "Operation not permitted on IsolatedStorageFileStream", from the info inside the 2nd using statement. I tried with the build action of my "Tips.txt" set to resource, and content, yet I get the same result.
Thanks in advance.
Since you've added it to your project directory, you can't read it using Isolated Storage methods. There are various ways you can load the file. One way would be to set the text file's build type to Resource, then read it in as a stream:
//Replace 'MyProject' with the name of your XAP/Project
Stream txtStream = Application.GetResourceStream(new Uri("/MyProject;component/myTextFile.txt",
UriKind.Relative)).Stream;
using(StreamReader sr = new StreamReader(txtStream))
{
//your code
}