I have data.xlsx file in Assets folder and need to get its path to apply some library.
Found several solutions here but neither works for me. For example -
File Not Found Exception In Xamarin program
I tried to use file:///android_asset/data.xlsx but here is no file too.
I checked the path with: System.IO.File.Exists(filePath);
So how to get path to this file? Maybe I have to place it in different folder?
Update: possibly I can solve it this way: java.io.FileNotFoundException: This file can not be opened as a file descriptor; it is probably compressed
But I can't find where to place it.
Update: this question is about Java and this is unclear how to use this solution in Xamarin.Android: How to get the android Path string to a file on Assets folder?
Looks like the file isn't included in the APK. Ensure that the Build Action of the file in the Asset-folder is set to AndroidAsset.
in general using Xamarin.android , you can use this code :
private string _fileName {get;set;}
public string FileFullPath
{
get
{
return Path.Combine(Android.OS.Environment.GetExternalStoragePublicDirectory(Android.OS.Environment.DirectoryPictures),_fileName);
}
}
Hope it helps.. :)
Looks like it's impossible.
Closest solution is to write file to Cache.
Related
I use some class. That's constructor needs some file path that contains some files.
ex)
Komoran komoran = new Komoran("D:\program_project\lib");
Now I'm making android app. so I can't use absolute path (Because other people who download my app don't have that folder and files)
so I decide to use 'assets' folder that is maybe in APK file. So, final code is like below.
Komoran komoran = new Komoran("file:///android_asset");
but It seems like folder path is wrong(this class doesn't work). What I did wrong ?
This "file:///android_asset" path is used for applications which uses webview ex. cordova/phonegap. As it is part of resources because when Apk is created you can not use this path to access your assets folder. You have to work with context.getResources().getAssets().open("fileName")this code only.
Maybe u can add this code:
context.getResources().getAssets().open("fileName").
u will get a inputstream, and u can do something u want.
No need to use getResources.
You can use directly
context.getAssets().open("fileName").
I try to use OpenNLP in an Android application with eclipse, and I imported the 4 JARs into the libs folder.
It's probably a stupid question.. but where should I put the model files "en-pos-maxent.bin"? I can't find anything regarding the path anywhere
I try to run the code contains this line:
POSModel model = new POSModelLoader()
.load(new File("en-pos-maxent.bin"));
I tried putting the en-pos-maxent.bin inside a new folder within the project("tagger/en-pos-maxent.bin"), inside the libs folder, or simply give the path where the en-pos-maxent.bin is put when downloaded("Users/ariel/Downloads/en-pos-maxent.bin"), it always give me the error: POS Tagger model file does not exist path: (the path I typed in)
Could anybody help please?
When you use new File("filename") the file is expected to be in the current working directory, I don't think that's different on Android. You can use System.getProperty("user.dir") to get the current working directory. It's by default the directory you start the program from. You could also specify a full path like new File("/full/path/filename") instead.
In android the right way to add file to the application (inside APK) is to put into the assets folder. Then you can't get File object from assets folder but, you can create that File using a buffer or in you case just get it into the InputStream. For example if you will create models folder into the assets folder (assets/models), your code will look like this:
AssetManager am = getAssets();
InputStream inputStream = am.open("models/en-pos-maxent.bin");
POSModel posModel = new POSModel(inputStream);
I wanna include a text file to my project in smartface appstudio. I put it where? In resources folder or assets? FileStream could not read it in resources (as a drawable item). Any idea?
var txtFile = new SMF.IO.FileStream(SMF.IO.applicationResources, "words.txt", SMF.IO.StreamType.read);
txtFile.readToEnd();
It is not implemented in current release of Smartface App Studio. Also I have tried it before. It is Phase 2 for File Operations.
You can download your static text file from the internet and can save it to the local storage. And read it from there. I can just suggest you this idea. Check some helpful links below.
http://developer.smartface.io/hc/en-us/articles/203177557-File-Operations
http://developer.smartface.io/hc/en-us/articles/202153536-File-Download-Upload
I need to access myfile.txt file using FileReader in Android , please suggest me where to add the text file in Eclipse. I tried it adding it in Resource and Asset but I am getting File not found issue.
FileReader fr = new FileReader("myfile.txt");
Even
File ff = new File("myfile.txt");
File Supports only the below listed parameters
FileReader Supports only the below listed parameters
Note: I want solution for this issue , only with FileReader or File
The directory would be /res/raw/ this is where you put all your extra resources.
you can refer to it using getResources().openRawResource(resourceName)
and check here Android how to get access to raw resources that i put in res folder?
EDIT:
how can i edit the text files in assets folder in android
in short
the easiest way would be to copy the file to external directory then do your stuff there
link is here
Android: How to create a directory on the SD Card and copy files from /res/raw to it?
One thing to mention - prior to 2.3 the file size in the assets cannot exceed 1MB.
hope it helps abit
That's how I obtain my file from the SD card, perhaps this can be some use to you.
String state = Environment.getExternalStorageState();
if (Environment.MEDIA_MOUNTED.equals(state)) {
File options = new File(getAppDirectory(), "portal.xml");
}
The getAppDirectory method used in the bit of code looks like this :
private String getAppDirectory() {
return new String(Environment.getExternalStorageDirectory().toString()
+ "/foldername/foldername/");
}
After this bit of code I also make sure the file exists and what not before I attempt to read from it.
I have few html files in assets folder of my application. My application loads these files depending on the device language. When I check for the existance of the file it say does not exist, but when I load that file using browser.loadUrl(filename), it loads it fine.
Following code will help you to understand my problem:
String filename="file:///android_asset/actualfilemname.html";
File f = new File(filename);
if(!f.exist){
filename = "file:///android_asset/newfile.html";[Everytime it loads this file even though I have actualfilename.html in the folder]
}
browser.loadUrl(filename);
[it loads the newfile.html but not actualfilename.html]
You can't use File for resources. You'll need to use the AssetManager for that.
(In the off-chance that File does handle resources, which I don't think it does, you'll have to convert the path to a URI first, for example using URI.create(). File(String) expects a path, not a URI.)
Is this the exact code you are using? you probably want to be calling f.exists() not filename.exist().
Edit: try working with the AssetManager instead of hard coding your file path. My best guess is that the file path you are using is not exactly how it supposed to be.