Android :: Application That Reads File From Internal Storage On Startup
Aug 3, 2010
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.
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Jul 14, 2010
Is anyone aware of a file manager that can read both the internal DINC memory and the SD card? Perhaps I'm missing something, but I've tried both ASTRO File Manager and ES File Explorer with no success.
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Jun 8, 2010
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:...................
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Aug 24, 2010
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.
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Jun 27, 2010
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?
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Sep 18, 2010
How to store image and audio files in android internal storage and how to retrieve back to display image imageview.
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Feb 7, 2013
0.00b is keeping me from installing apps and rooting my device. However, the SD folder, which stores all my media is still reading 2.3GB.
I also cannot access my recovery mode.
I read that the solution is flashing a new rom, but I don't know how to do that without a recovery or root.
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Aug 14, 2012
I 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.
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Oct 3, 2010
I 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?
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Apr 16, 2010
How 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.
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Dec 21, 2013
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
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Jun 30, 2010
A question about the internal storage that's private to each application (especially when storing files with Context.MODE_PRIVATE).
How is that storage actually assigned to the application? Just by package name or also somehow bound to the sign key of the app?
Let's say I have installed application 1 and then write another application 2 with the same name and package name (just differently signed with different keys) and install it (app 2 replacing app 1), would that application 2 get access to the /data/data/[app]/files ?
Or would I not even be able to replace app1 with app2 due to different sign keys in the first place?
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Jun 24, 2010
I downloaded a file with an app and stored it inside of its internal storage, but the file is set with -rw- and I want to change those permissions so is it possible? I know that using external storage is an option but I want to know if I can do it with internal storage too. If it turns out that I can't change the permission is there some shared region of internal storage that I could use? I would like to not force the Android device user to have an SD card.
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May 5, 2010
I downloaded (via email attachment) Maniac Mansion NES ROM and also put SCUMMV on my HTC Incredible.
How do I find the application in the internal phone storage to play the game?
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Mar 16, 2014
I am about to build an app which needs to use device internal storage memory extensively, a lot of reads, writes and overwrites of the files.
I assume that most of the android devices use a kind of a flash memory, but where can I find more data on this topic for the most common memories used, like how many reads/writes can an internal flash endure before failing?
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Nov 18, 2013
After Installing a new firmware for my 8gb galaxy mega i9205 I got a internal memory error . If I open storage stats it reads 7GB miscellaneous files and if I open app manager it display as free space.Root explorer cant open the internal storage !
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Aug 23, 2013
I'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.
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Aug 22, 2010
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.
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Nov 19, 2013
I 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?
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Aug 18, 2010
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.
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Jan 5, 2014
I 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..
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Aug 24, 2010
I really really really want a kindle 2 reader, but it isn't my birthday until December, so I've downloaded the kindle for Android application to my Sony Ericsson X10 Experia, I've only downloaded one book so far, but I read it within a day, I noticed at the end of the book that it said "quick read". Are all the books supplied quick reads? Is this the same on the Kindle reader? If this is the case I won't be buying one, I want the full version of the books!
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May 17, 2010
I want to write an application that reads blogpost from the internet and then present in my own way.
The blogposts are stored in databases, so I figured that the only thing I had to do was to query an online database for the posts that I want to show.. But I canīt find a way to open a connection to an online database. anyone out there with a solution to my problem?
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Jun 7, 2010
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?
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Apr 18, 2010
I have a simple app with a surfaceview nothing special one would say. However when installing on my phone I get two warnings.
1 - Phone calls
- read phone state and identity
2 - Storage
- modify/delete SD card content.
My really is nothing more than a simple puzzle and I dont understand why I get these warnings.
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Oct 10, 2009
I am a android developer, I stuck into a problem, how to read really big images with Android API, I am wondering how native Gallery (Camera application) is reading bigger images so fast. can any Android Engineer here direct me to the piece of code that android engineer used to draw bigger images.
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Sep 22, 2010
i 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.
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Nov 6, 2010
I 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?
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Aug 30, 2009
Does 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.
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Aug 17, 2010
Why 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?
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