I have used the android internal storage to save a file for my application (using openFileOutput) but I would like to delete that file, is it possible and how?
thanks maxsap.
View 2 Replies
I am successful in creating file using openFileOutput(). and can read the file using openFileInput().
I am able attach file from external storage sdcard while emailing the same using getExternalStorageDirectory as sendIntent.putExtra(Intent.EXTRA_STREAM, Uri.parse("file://"+Environment.getExternalStorageDirectory()+"/ zibra.txt"));
But while trying to attach file from the openOutputFile stored area using sendIntent.putExtra(Intent.EXTRA_STREAM, Uri.parse("file://"+ getFilesDir() + "/zibra.txt"));, resulting emptied file emailing.
My file is stored in "/data/data/com.example/files/zibra.txt".
what is going wrong in it?
CODE:...................
I'm writing a simple budget app for myself, and I'm having trouble figuring out how to write to internal storage. I don't seem to be writing to the file properly and I can't find any more in depth examples than the Data Storage article on developer.android.com. Basically, I'm trying to write a test float to the MyBalance file, then read it into balance. In my actual code I use try/catch statements around the file in/out operations but I skipped them to make the code more readable.
float test = 55; float balance; byte[] buffer = null;
FileOutputStream fos = openFileOutput( "MyBalance", Context.MODE_PRIVATE );
fos.write(Float.floatToRawIntBits(balance));
fis.read(buffer); //null pointer
ByteBuffer b = ByteBuffer.wrap(buffer);
balance=b.getFloat();
That's the gist of it, anyone see what I'm doing wrong? I went ahead and converted to/from String but I still don't think the file is being created. I have an if statement that reads from it if it exists in onResume() and it isn't being run. Lemme post some of my code. Here's how I'm writing the file, (setbal is an EditText and balanceview is a TextView):
balance = Float.valueOf(setbal.getText().toString());
balanceview.setText(setbal.getText());
balstring = String.valueOf(balance);
for (int i = 0; i < balstring.length(); ++i)
try { fos.write((byte)balstring.charAt(i));
} catch (IOException e) { e.printStackTrace();
}
I check if the file exists in onResume() like so:
File file = new File("data/data/com.v1nsai.mibudget/balance.txt");
Is that where an internal file for that context would be stored?
I am writing a app that reads a file from the internal storage on startup. I have followed the guildelines here:
http://developer.android.com/guide/topics/data/data-storage.html#file...
It successfully works on the emulator, and I can find the file my app created under
DDMS > data > data > com.MyAppName > files.
Now I would like to install my app on a real device, but do I need to explicitly copy the file onto the device? If so, what's the location should I copy the file to? Or will the file be created when I install my app? I need some pointers or guidelines, I'm quite clueless about the device. Or perhaps if anyone knows any keywords for me to search for an answer.
How to store image and audio files in android internal storage and how to retrieve back to display image imageview.
View 2 Replies View RelatedI am writing a code for an android app in which I have to captures image and save it into internal storage of android. For this I have written the following code-
Code:
Intent intent = new Intent("android.media.action.IMAGE_CAPTURE");
String newPath = PATH+"/"+folderName+"/"+imageName+".jpg";
File file = new File( newPath );
file.mkdirs();
[Code]...
This code creates jpeg file but don't write the image into it.
Later I tried writing following code in onActivityResult-
Code:
protected void onActivityResult(int requestCode, int resultCode, Intent data)
{
Bitmap bitmap = (Bitmap) data.getExtras().get("data");
ByteArrayOutputStream bos = new ByteArrayOutputStream();
bitmap.compress(CompressFormat.PNG, 0, bos);
byte[] bitmapdata = bos.toByteArray();
[Code]...
But its still not working.
What i want to do: delete an image file from the private internal storage in my app. I save images in internal storage so they are deleted on app uninstall.
I have successfully created and saved: code...
I have read on the android developer website that i must open private internal files using the openFileInput(...) method which returns an InputStream allowing me to read the contents, which i don't really care about - i just want to delete it.
can anyone point me in the right direction for deleting a file which is stored in internal storage?
I dnt know what Ive done last night But all the files in my internal storage are disappeared. I mean the image file. So any way to find the file out? My device is a Sony Xperia SP , which is rooted but with locked BL. there are too many important and valuable photos there.
Never ask me to use MSC mode instead of MTP, as my photos are save in internal memory Undelete and Remote for Android are tried but useless
I am storing image in External storage using MediaStore,and send email with attach that image,image saved and sent email with attachment is working fine,i want to delete that image in external storage after mail sent.anybody knows,please give sample code for me..
View 1 Replies View RelatedI've bought this chinese clone of the SIII, it's a MT6575. It's great except for the internal storage, which supposedly is 500MB but there seems to be an invisible SD storage which is 2GB. It's really confusing... When I go to Settings -> Storage there are 3 memories: "Internal Storage" (claims to be 4GB but it's fake, it's actually 500MB), "Phone Storage" (claims to be 16.5GB but it's probably 2GB), and finally my SD, "SD Card" (32GB).
The thing is, I'm having problems downloading big apps because apps go to "Internal Storage" which is 500MB only, and which files are stored in the "Phone Storage" (maybe internal & phone are actually the same?). However when I go to Settings -> Apps, on the "Downloaded" tab, the apps are in "Internal Storage" (500MB), and on the "On SD Card" tab, it shows that apps are in "Phone Storage" (the ones I moved to SD). This means my 32GB SD isn't being used by the system when I send apps to SD probably.
Also, my 32GB SD card is found in /mnt/sdcard2, and the /mnt/sdcard... I don't know which storage is that.
So basically all this is happening because I tried to Link2SD with my 32GB SD doing all the 2 partitions stuff and so, but Link2SD never detects the "secondary SD" which is the 32GB SD, as this fake SD card, "Phone Storage", is probably what the programs thinks to be the SD card.
For some reason my Incredible won't mount both the internal phone storage and the SD card storage at the same time. What I mean is...when I plug my phone into my PC I only get a single popup asking to mount the phone's SD card storage, but not the internal phone storage.If I remove the SD card (or unmount the SD card using menus on the phone) and then toggle the connection type from Disk Drive, to Charge only, and then back to Disk Drive (to burp the connection), the internal phone storage will mount, but the SD card won't mount because it has been removed.When I connect my wife's incredible, my computer sees both the SD card storage and the internal storage (as expected) and gives me prompts for both. I took the SD card from the problematic phone and put it in the "good" phone and there are no issues at all (IE.. both the internal storage and SD storage mount). This of course means there is no issue with the SD card.
View 1 Replies View RelatedI bought my new phablet that was powered by 4.1
im shocked with how the manufacturer of my device(cherry mobile) designated their storage. the phone storage is 2gb and internal is 500 mb.
it is not a problem if i could write apps on phone storage by default but even though the 'write to phone storage' is checked, when i downloaded an app, the internal storage still losses free space.
so is it possible to extend internal storage?
I used this to check the amount of space on my A2SD partition of my SD Card. However I've noticed that as well as INTERNAL storage, there's something called SYSTEM storage. Which is considerably bigger than whats left of my internal space.Is the INTERNAL used for Multimedia files as this thread suggests?Internal Storage vs Phone Storage.If so. How come my multimedia files have ended up there, when they've always been saved to my SD card.
View 4 Replies View RelatedI have a xperia u, which has not external SD card slot..
Data partition is MUCH bigger than what I need (I'm using 500mb of 2gb) and I want to move obb files to data partition to free some space in SD partition..
Sorry if this is a complete NOOB question, but what is the difference between the internal storage which is 6.6GB and the phone storage, which is about 750MB? How do I access the 6.6GM of storage? What am I missing here?
View 1 Replies View Relatedi just download some applications from the Market then suddenly got warning phone storage getting low. So is there anyway to transfer the files from phone storage to SD storage ??? PLease anyone who knows about it to inform me coz i stuck with this problem.
View 3 Replies View RelatedI have an app that pulls album art from the media store. It works fine on my N1 and other devices with external SD cards. However, I need to get it working on devices with internal storage and I don't have such a device to test on. How can I set up the emulator to reproduce such a device? I did a search on the forums and found info on increasing the size of the internal storage but I'm not sure how the file system should be set up. Is this even possible?
View 4 Replies View RelatedDoes anyone know how to set internal storage in the AVD to something other than the default 92M? I have tried setting hw.ramSize in the AVD's .config file, but no change and also tried setting it when creating a AVD with the "android create" command. Same net result. I'm on Windows XP.
View 3 Replies View RelatedWhy do I only Have about 25mb of storage I see others with much more on their Droid and they have 60mb or more. What can I do to add mb?
View 1 Replies View Related1) Our Android app will store data in a built-in SQLite DB. I see the DB can throw android.database.sqlite.SQLiteFullException, but there's no exact info in API what is the limit. Could anyone tell what are the size limits for a DB in order not to get into the SQLiteFullException? I assume DB will store data in device's internal storage (versus SDCard). Am I right? Given SQLite DB is just a file, probably the DB size is limited with free internal storage space. Again - Am I right? If yes, then what is the internal storage size on Android? How to detect it? Does it vary on a device model basis or OS version basis? 2) We'll also need to save app settings. I think SharedPreferences will fit nicely. However the question is - are SharedPreferences saved to the internal storage too? If yes, then is it the same storage where the DB stores its file?
View 3 Replies View Related1) Our Android app will store data in a built-in SQLite DB. I see the DB can throw android.database.sqlite.SQLiteFullException, but there's no exact info in API what is the limit. Could anyone tell what are the size limits for a DB in order not to get into the SQLiteFullException? I assume DB will store data in device's internal storage (versus SDCard). Am I right? Given SQLite DB is just a file, probably the DB size is limited with free internal storage space. Again - Am I right? If yes, then what is the internal storage size on Android? How to detect it? Does it vary on a device model basis or OS version basis? 2) We'll also need to save app settings. I think SharedPreferences will fit nicely. However the question is - are SharedPreferences saved to the internal storage too? If yes, then is it the same storage where the DB stores its file.
View 1 Replies View RelatedI have a Motorola Droid that isn't rooted. In the last few weeks I've had problems with dropping free space on internal storage. I'm around 30MB free but it drops almost daily. I have deleted pics and text messages and have started deleting apps but the free space keeps dropping.Is there some way to figure out where this space is going or monitor for changes?
I have a service that needs to write some data to the internal storage using RandomAccessFile. Do I need to use a WakeLock to make sure the data won't get corrupted if the service process gets killed?
View 14 Replies View RelatedI've started seeing some apps that offer to read/write data to the internal phone memory (like Super KO Boxing 2, which offers to save a whopping 52MB to the phone memory). I suppose this is because newer Android devices have a lot of internal storage, as opposed to my devices, which have very little. I would like to support internal storage in my app as well.
But it's a bit difficult to implement a solution to something that I don't really know how it works. For example, do these newer devices allow users to upload files to the internal memory, like it's possible to do with the SD card? Can someone explain internal storage from an user perspective and recommend strategies for supporting read/write operations both for internal and external memory (ie: letting the user choose which memory to use at startup, like the Super KO Boxing 2 app)?
Is there a way to set the emulator's internal storage size? It is currently set to a fairly low value. Also, while searching for the answer to this question (which I didn't find), I ran across several threads which seemed to indicate that many phones have a very limited amount of internal storage. If I have an application which is 30 Mb (due to graphics and audio resources), is this going to be too large for most people to use. Should I be looking to install my application on the SD card instead (can this only be done on version 2.2 systems?).
View 3 Replies View RelatedI have a question about where people expect me to store my application data. I have an application where the user will enter information via the keypad, and download information (including images) from a website. Where is the proper place to save this? Internal or External Storage?
View 5 Replies View RelatedHow can I transfer files on my SD card to my phone storage?
View 2 Replies View RelatedI tried to copy my wiped data from my phone, so i have to read raw data with dd command. I have root and BusyBox v1.14.2 installed, but when i type: dd if=/dev/block/mtdblock5 of=/sdcard/testfile or even just dd if=/dev/block/mtdblock5 I get: dd: /dev/block/mtdblock5: Input/output error Why can't I copy the data?
View 3 Replies View RelatedHow can you retrieve yours phone internal storage from an app? I found memory info, but it seems that returns information on how much memory your currently running tasks. I am trying to get my app to retrieve how much internal phone storage is available.
View 1 Replies View RelatedI have an app that accesses music and I had at least one user complain that some of his songs are on internal storage and that causes a force close. My question is do I have to do 2 calls for each song now or can I make a query that will look at both the internal and external memory?
View 1 Replies View Related