Android : Way To List - Access All Files In Directory?
May 7, 2009Can any one tell me which is the best way to access the file system in android device, also i want to list all the files in the application directory.
View 3 RepliesCan any one tell me which is the best way to access the file system in android device, also i want to list all the files in the application directory.
View 3 RepliesI'm happy reading and writing to a pre-set file, and could manually populate a listview, but I'm hoping there is an official(or not) filebrowser I missed, or other more elegant solution to present the user with a directory listing, and let them select a file.
View 2 Replies View RelatedUsing code from open source MusicDroid with the following code that I found during a search for this problem, I can only get mp3 files that are in the root directory /sdcard/
CODE:........
How can I get all the mp3 files from the card (in any directory) into my 'songs' list?
Can anybody advice what is the recommended directory to store files generated by your application: audio files, video files or some images.
If the phone contains SD card, it is clear that files should be saved there, but if there is no any external storage. where would you recommend to save to?
I want to build a list that show the directory tree like list similar to folders view on the left pane in 'Windows Explorer'. I have seen ExpandableList but this goes into 2 levels only. I want to go into multiple levels. Expand the item by clicking on the left icon and show sub directories in it. Click on sub directory expand icon, show the sub-sub diretories in it and so on.
View 4 Replies View RelatedThis sounds simple, but i couldn't find any api from the reference.
i want to get all the files under certain directory on the sd card.
can you point me to the correct function?
I save some resources in the res/raw directory which i then would like to read with my custom loader.
how can i do this?
ideally i would get a BufferedReader on them.
I try to create 'foo/bar.txt' in Android's /data/data/pkg/files directory.
It seems to be a contradiction in docs:
To write to a file, call Context.openFileOutput() with the name and path.
http://developer.android.com/guide/topics/data/data-storage.html#files
The name of the file to open; can not contain path separators.
[url]
And when I call
this.openFileOutput("foo/bar.txt", Context.MODE_PRIVATE);
exception is thrown:
java.lang.IllegalArgumentException: File foo/bar.txt contains a path separator
So how do I create file in subfolder?
I am new to android programming, can someone please tell me how to get access to the files in a directory , i am using Environment.getExternalStorageDirectory() method?
View 1 Replies View RelatedI get a lot of requests in my application to allow for custom icons packs from BetterCut / Open Home. The way it seems to work is you install BetterCut or Open Home, then you can install tons of these free icon packs from the market. Once installed both those apps (and other apps) will poll for those icon packs and use the icons. I want to know how to poll the install applications for the asset folders that are available. I have opened up a few of the icon packs and verified that there is an assets folder in there and they are full of all the icon png files. I've searched on here, other code sites, google, etc., but haven't found any leads.
From the answer below I have written some code to try and list a file from my own projects assets directory but it does not seem to work.
Resources r = this.getResources();
AssetManager a = r.getAssets();
String[] list = a.list("/");
Log.d("test", "Length of / is "+list.length);
for (String s : list) { Log.d("test", s); }
Log.d("test", "Length of /assets is "+a.list("/assets").length);
Log.d("test", "Length of /assets/ is "+a.list("/assets/").length);
Log.d("test", "Length of /assets/ is "+a.list("/assets/").length);
Log.d("test", "Length of ./assets/ is "+a.list("./assets/").length);
Log.d("test", "Length of ./assets is "+a.list("./assets").length);
This is the output:
03-16 12:25:04.591: DEBUG/test(13526): Length of / is 6
03-16 12:25:04.591: DEBUG/test(13526): AndroidManifest.xml
03-16 12:25:04.591: DEBUG/test(13526): META-INF
03-16 12:25:04.591: DEBUG/test(13526): assets
03-16 12:25:04.591: DEBUG/test(13526): classes.dex
03-16 12:25:04.591: DEBUG/test(13526): res
03-16 12:25:04.591: DEBUG/test(13526): resources.arsc
03-16 12:25:04.614: DEBUG/test(13526): Length of /assets is 0
03-16 12:25:04.637: DEBUG/test(13526): Length of /assets/ is 0
03-16 12:25:04.661: DEBUG/test(13526): Length of /assets/ is 0
03-16 12:25:04.692: DEBUG/test(13526): Length of ./assets/ is 0
03-16 12:25:04.716: DEBUG/test(13526): Length of ./assets is 0
I figured out that you can read from the assets directory without actually using the folder name:
InputStream is = assetManager.open("test.png");
I also tried this with an asset in Appliction 2 from Application 1, where the folder path is /asset/icon/image.png:
InputStream is = assetManager.open("icon/image.png");
Next I figured out that you can list a directory inside assets:
String[] list = assetManager.list("icons");
That also works great. The only thing failing right now is how to list the base directory assets.
I need to be able to write textfiles to the root directory of my Android device (as this related questions explains).
Can I change write permissions for root directory / and if so, how?
I tried pushing a file using adb, but it said file system was read-only
Its pretty annoying that I cannot control my own device, that everything is so restricted
EDIT 1:
This thread has evolved into discussing Sygic Navigation and their API, which seems to be wrong when it comes to the Android platform. I have some other questions that discuss Sygic and their navigation software.
I don't see anything about this change in the API differences report at http://developer.android.com/sdk/api_diff/8/changes.html. However when my Nexus One started running Android 2.2, the list of files created by the following code are now in reverse alphabetical order rather than alphabetical order (as they were with Android 2.1 and earlier, AFAIK):
CODE:.........
The line "Arrays.sort(fn);" revives the alphabetical order of the list, but sorts are computationally expensive and AFAIK the explicit call to Arrays.sort() was unnecessary prior to Android 2.2.
In addition to seeing this order change on the Nexus One, it can be confirmed on the emulator running level 7 and level 8 AVDs.
I am trying to create a folder and several subdirectory within it on the SD Card... I then want to transfer files that I have stored in /res/raw to that folder... I addition, I want this to only happen once, the first time the program is ever run. I realize that this is ridiculously open-ended, and that I am asking a lot...
View 1 Replies View RelatedFriends, My application has to get current gps position in every seconds and write this data as byte array to a file in files directory. To check the data in that file I tried to open mnually. But i couldn't open. How can i read the file. The file is a text file
View 1 Replies View RelatedI have a project written for Android devices. It generates a large number of files, each day. These are all text files and images. The app uses a database to reference these files.
The app is supposed to clear up these files after a little use (perhaps after a few days), but this process may or may not be working. This is not the subject of this question.
Due to a historic accident, the organization of the files are somewhat naive: everything is in the same directory; a .hidden directory which contains a zero byte .nomedia file to prevent the MediaScanner indexing it.
Today, I am seeing an error reported:
CODE:................
Regarding the sdcard, I see it has plenty of storage left, but counting
$ cd /Volumes/NO_NAME/.hidden
$ ls | wc -w
9058
Deleting a number of files seems to have allowed the file creation for today to proceed.
Regrettably, I did not try touching a new file to try and reproduce the error on a commandline; I also deleted several hundred files rather than a handful.
However, my question is: Are there hard limits on filesize or number of files in a directory?
am I even on the right track here?
Nota Bene: The SD card is as-is - i.e. I haven't formatted it, so I would guess it would be a FAT-* format.
The FAT-32 format has hard limits of filesize of 2GB (well above the filesizes I am dealing with) and a limit of number of files in the root directory. I am definitely not writing files in the root directory.
Can an android project in Eclipse be configured so that the built-in builders read from an alternative source directory? ie. "test/src" instead of "src"? and possibly even "test/res" instead of "res"? (It appears that setting dirs in the property files will only affect ant and not the built-in builders)
View 1 Replies View RelatedHow do I create a shared directory with read/write permissions to all applications installed on my phone and that is not on the sdcard?
I tried that :
File f = new File("/tmp");
f.mkdir();
but it is not working.
I downloaded a PDF file to my Droid.I can see that it is in the "Downloads" folder when I mount the Droid to my laptop via the USB.My question is, how do I access this file from the phone?I can't get to the directory to try to open it.I can access the PDF through my Gmail account using the Preview option. However, I wanted to save the file to the SD card. So, I searched this and another forum on how to do that and the only way I could find was to access my gmail account through the browser and download. I did this and the file was put in the Downloads folder on the SD.How do you access the Downloads directory and for that matter, any directory that you may want to create on the SD?
View 4 Replies View RelatedI am working on an android app. Where i need to parse some plist files from assets folder. I do understand how to use assets in android but now problem is that file sizes are more than 1MB and so android gives error Data Exceeds UNCOMPRESS_DATA_MAX (2183588 vs 1048576). how to access such larger files from assets? Also I cant reduce a file into small buffers because i am just sending it to "DocumentBuilder.parse(in)" as a whole so can not use buffer. The error is on line: Document doc = db.parse(in).
View 1 Replies View RelatedI have one bitmore 1010 tablet with custom rom cyanogedmod, I delete some files from root directory and now the tablet is not load android os. I see only the bitmore image in screen and nothing else.
can I restore the image from android control v1.3.1?
i am updating an app i developed so that it downloads xml files it needs for content management. the files download successfully to the emulator but are not placed in the /files directory that openFileInput() is attempting to read from. i am admittedly unsure as to the proper overall solution here - app originally used packaged XML and was fed to an XMLPullParser - but i cant even get as far as attempting to parse new XML at present because my app cant find the new file sitting in /data/data/[myApp]/ and not /data/data/ [myApp]/files and i cant figure out how to get it in there. the download doesnt work at all if i add that folder to path.e.
View 2 Replies View RelatedI'd like to know if there's a way to write files into the main directory just before the system shutdown, something like this:
End all processes (-> unmount disks?) -> mount /sdcard rw and / rw -> copy files from /sdcard to / -> unmount disks -> shutdown/reboot
Same with boot image (flash, in this case, and not copy / mod files)... is it possible? Or do I require to boot into recovery for these operations? I know I can remount as rw my system directory via ADB
Also, is it possible to do the same thing with the build.prop file? This, or during startup (before mounting partitions with standard permissions).
Of course, this having root (but not a special kernel to enable this kind of "before mounting" thing).
I've thought of starting to develop an application and one of its features is that it downloads some content (images, files, etc) and organize them into folders in accordance with site they were downloaded.
Well, the question is... How do Android organize your files? In Windows, for example, I could create some folders, one for each site, or one for each time period. But in Android, how does it work? Is there a system of folders like Windows? Or is there a totally different way to organize files?
Has anyone figured out how to access your MS Exchange company directory on the Epic? My co-worker who has an Evo is able to when he goes to compose a new message, he has the option to search the company directory. But I do not on the Epic.
View 3 Replies View RelatedI've rooted my phone, but I still can't figure out how to access the / directory from my computer. Specifically, I want to be able to open /system/media/audio/ringtones so I can put new ringtones in there. Is there a good way to do this? I tried copy/pasting with astro file maager, but it won't let me paste into that directory, I assume because I don't have permission.
View 9 Replies View RelatedBrought over my 8GB Sandisk from my BB. Obviously over the past year it added a bunch of files and folders to the card for miscellaneous app data, music, pics, etc. Would I gain any speed on the device by reformatting the card and letting it start fresh in it's new home and re-syncing music and photos into fresh android directories?
View 2 Replies View RelatedI have a question about moving files after rooting, installed supersu already and give root browser permissions in supersu.
I have a problem with moving a apk file from downloads/direct to system/priv-app. It says after i'm trying to moved it "failed operations" and it seems like it's the only directory i can't move files to.
I have read that the files or directory should have some special permissions, but i'am sure that the criteria are met.
Also when i go to supersu to see logfiles on the "action" it says that i need supersu pro to move that files. But will it works or what should i do to get this to work?
I recently rooted my droid eris and installed the sense-able2.0 custom rom. I was just wondering if I could delete the zip files out of the root directory after they are installed?
View 1 Replies View RelatedI went to Google Labs and looked around and found Places Directory. The page shows a barcode and said I could scan that and download the app so that's what I did. My browser opened up and showed that the file was downloaded.
So I went back to the home screen but couldn't find Places Directory. I decided to manually download and install it from the market and that worked fine.
My question is, do I now have a downloaded copy of this app that is just sitting somewhere taking up space? I can't figure out where files downloaded by the browser go to, please help.
My .mail folder contains a bunch of files I can't identify what they are or what they are used for. I have moved ALL THE FILES AND TOKENS to a temp directory and my Here seems to be working fine with the .mail folder empty. I think these files have something to do with email I receive and delete. Has anyone ever cleared out this directory to conserve storage space? Are these useless files and can be deleted?
View 7 Replies View Related