Android :: Error Creating File On SD Card
Apr 1, 2009
I would like to write a file to the SD card from my application, but the following code throws an IOException when debugged on a T-Mobile G1:
String p = Environment.getExternalStorageDirectory() + "/log.txt"; File recfile = new File(p); recfile.createNewFile();
The last line throws an IOException with detailMessage = "Cannot create: /sdcard/log.txt". The MOUNT_UNMOUNT_FILESYSTEMS permission is set in the manifest. And yes, I really do want to write to the SD card; I don't want to use the logging features Android includes for this particular application. The Android documentation does not seem to give any specifics on how one might write files to removable storage in "Data Storage" under "Framework Topics". What am I doing wrong, or where can I read more about this topic?
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Oct 23, 2009
I created a sample project using the below command:
android create project --target 1 --name HelloAndroid --path ./ HelloAndroid --activity HelloAndroid --package com.helloandroid
Then attempted to build it using ANT. It gives the below error while creating the .dex file.
CODE:............
BUILD FAILED C:android-sdk-windows-1.6_r1platformsandroid-1.1 emplates android_rules.xml: 129: apply returned: 2
Total time: 5 seconds
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Jun 22, 2010
I copied song.mp3 to my project's assets directory and wrote this code:
private MediaPlayer mp;
Uri uri = Uri.parse("file:///android_asset/song.mp3");
mp=MediaPlayer.create(this, uri);
After running the create statement, the variable mp is null.
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Sep 5, 2010
I want to create a file on the SD-Card and later save a CSV file in it. From surfing around I noticed that there seem to be two ways about going about it:If you're using API Level 8 or greater, use getExternalFilesDir() to open a File that represents the external storage directory where you.................................
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Jan 15, 2010
I am running into a problem creating an android emulator from the command line. When I run the android command the messages below output.
Starting Android SDK and AVD Manager
SWT folder 'libx86_64' does not exist
Please set ANDROID_SWT to point to the folder containing swt.jar for platform
I've already:
Execute SDK Setup.exe and brought down the android packages
Modified my environment variables to point to the tools folder
Verified that the SWT.jar was in fact located in libx86_64
I've already successfully set this up on my primary development unit. The system I am installing on now runs 64-bit Windows 7 (same as my other development unit).
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Jun 1, 2009
Just a few days working on Android, but... I don't see this to be "normal" (well, the Dalvik isn't but that's another subject... xD)
when i try to create a new XML file (for a layout) from eclipse, using the android plugin, it shows up a window saying "Problem Opening Wizard - The selected wizard could not be started", and the error comes to show:
"The selected wizard could not be started. Plug-in com.android.ide.eclipse.adt was unable to load class com.android.ide.eclipse.editors.wizards.NewXmlFileWizard. com.android.ide.eclipse.editors.wizards.NewXmlFileWizard"
Ok, I see the error is something missing (or failing) in the plugin...
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Nov 13, 2010
My eclipse is not creating gen folder and android compilation creates error missing required gen folder.
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Nov 10, 2010
I got the following error on error log,"conversion to dalvik format failed with error 1" How to resolve this issue?
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Mar 17, 2014
Whenever I create a new contact in Android (in both 4.3 and 4.4 GN3) for my outlook.com account via Exchange ActiveSync (e.g. First: John, Last: Smith, email:url...), after sync is complete, the email address entry in outlook.com becomes "John Smith (ur)" in its entirety rather than just url...
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Sep 16, 2009
In my MediaPlayer application for streaming Video i am using the following code File temp = File.createTempFile("mediaplayertmp", "dat"); while running it throws exceptions like
Parent directory of file in not
writable:/sdcard/
mediaplayertmp43912.dat
I dont how to handle this problem, and i want to know that when we execute that code means where the file will be created.
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Jul 29, 2009
1. It contain's the native binary with it. Then it will llod that native binary to AFS. 2. Then it should call or execute that native binary. But when I do that one. The native binary is working fine. But the problem cmoes out here. The function of the native binary is to read the file in the AFS and to copy it to another location.
But when I do the above steps. The native binary has been successfully loading to the AFS. After that when I try to execute the native binary. The file is get created with 0 size. The file permissions looks like below.
......................
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Nov 22, 2010
How can I create a XML file that has identation or, at least, line breaks between each tag? I'm using class XMLSerializer (available in Android) to handle the XML creation.
XMLSerializer serializer = new XMLSerializer();
StringWriter writer = new StringWriter();
serializer.setOutput(writer);
String xmlFileContents = writer.toString();
Then I use the contents of xmlFileContents to create a file, using a BufferedWriter. The file is written, but the XML is not idented, and would like it to be.
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Nov 5, 2010
I would like to make a file browser that will do two things:
1) Allow the user to browse and select a directory
2) Allow the user to browse all files on their sdcard
I've looked for tutorials but can't seem to find any? how what my code would need to do in order to have a simple file browser or providing me with a link to a tutorial/source code?
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Sep 13, 2010
I am using following to code to create a directory
private static final String TRIAL_DIR_NME="trial";
File dir = getDir(TRIAL_DIR_NME, MODE_PRIVATE);
Now I want to create a custom file inside this directory. Basically I want to write "trial start date" for app and then compare that date to determine if trial period has expired.
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Nov 17, 2009
Trying to create shared preferences for my class representing my api and one for my main class. I create a shared preference file by making this call in my api & main classes String PREF_NAME = "API"; this.pref = context.getSharedPreferences( PREF_NAME, Context.MODE_PRIVATE );
the log gives me this....................
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Apr 5, 2010
I was wondering if it were possible to dynamically create an XML layout file to be displayed to the user. The idea would be to be able to retrieve a layout file from a central server, which could display this dynamic, server driven GUI.
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Oct 4, 2010
I am trying to have my app create a directory on the root of the SD Card, if that directory does not already exist. When I run the app, the "Creating Home Directory..." toast notification displays, but the directory is not created... What am i doing wrong?? (P.S. permissions are set for writing to external storage)
CODE:.......
Here is my Manifest file:
CODE:...........
I tried this as well, it didn't work, but it might be a step in the right direction as it creates the directory and populates it with a file from res/raw all in one step:
CODE:.........................
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Mar 9, 2010
not sure how to inflate this from my layout file: MyView v = LayoutInflater.from(this).inflate(R.layout.myview, null); the inflater of course does not know what 'MyView' type is, and returns only View. What's a good way to reconcile this?
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Apr 21, 2010
I'm currently only testing things in an emulator due to not having an Android device as of yet. I'm honestly holding out for some of the new 1 Ghz machines to come out and do some comparisons. Anyway, I would imagine one would easily be able to make whatever folders they choose on an sd card, but on the emulated one, I can only seem to push entire folder contents or single files to the root. The adb help doesn't appear to have a command to make a folder. Is this not possible, or am I just missing something?
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Sep 15, 2010
I cannot create directories and files on sd card.
This is the simple example:
code:.................
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Apr 6, 2013
Is it possible to do this within Android?
At the moment I've this rooted phone running ICS, an SD card, an SD to USB reader and a netbook that once ran windows 7 until an hour ago. Oh and no working computer access for a few days.
I've installed a couple of versions of linux on PC's in the past, mainly as quick fixes between windows installations as I've proved myself too much of a novice to use it full time, so I know it can be done from an SD card easily enough should you be able to make one bootable with linux installed.
As I've only got this phone for a few days, would it be possible to do the above directly from this device?
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Jan 16, 2013
im using a samsung galaxy s3 clone and iv encountered a few issues that im unable to resolve on my own while following the instructions on this post.
[URL]
1. I followed the steps to root with DooMLoRD_v4_ROOT but after completing the process and rebooting, there is not super user icon.But i managed to find a another root with super user acess ( Root_with_Restore_by_Bin4ry_v18 )
2. When attempted to run the back23 script from Gscript, I get the following error messages. Screen Shots below.
++++++++++++++++++++++++++++++++++++++++++++++++++ +++++
# CreateDir
mkdir /sdcard/backup_
# ddImage
dd if=/proc/mtd of=/sdcard/backup_/firmware.info
dd if=/dev/mtd/mtd0 of=/sdcard/backup_/preloader.img
[code]....
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Jun 14, 2009
When I make a new project the .java file is not generated. I can run the project, but it does not run in the emulator or anything. It did use to work before then it stop working. I tried deleting the folder and all project files. After that I reinstalled everything but I am still having problems.
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Jul 7, 2010
I've been trying to export it to a jar file but as there is no main method in my app this doesn't work. Can someone tell me how to create this executable? the executable is to run the emulator and app both in computer not at phone!
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Jul 31, 2009
I've bought a HTC Magic, and when I setup the exchange account of my company it give the error "Failed to create the account. Please try again later".Has I don't have solution for it I need an application to sync Exchange e-mail, can anyone tell me the better free application to install.
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Aug 13, 2012
Can create a cwm flashable zip for my given .apk file
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Apr 1, 2014
I got a mediatek device. System and Boot.img included in the zip file. But I need a meta-inf map with the updater script. Problem; How the hell do I create one to work..
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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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Jan 19, 2010
Is there something like a FileDialog available? From previous threads, it appears there isn't one.
If not, has someone written one?
I want to allow a user to
a) Specify a folder/filename on storage for creating an SQLite database.
b) Specify an existing file/folder on storage card for opening as an SQLite Database.
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Jan 11, 2010
I tried to make a goldcard for rooting my HTC Hero (Three UK with latest ROM) over the weekend, but had no luck - it seems the memory card I own (an 8gb Kingston card from ebay, so may be a fake) doesn't work.
Can anyone recommend a memory card brand & size that will *definitely* work for creating a goldcard?
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