I am trying to create a file in /data but i think i don't have the required permission for it: File file = new File("data", "myFile.tmp"); and i get java.io.FileNotFoundException: /data/mopayUpdateFile.tmp is it possible to create a file in "data", or somewhere else inside an android phone, except sdcard?
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I want to create a file in emulator android storage path /data/ but it seems I can't create a new file by programs,I should upload an empty file to /data/ and then write the file,an anyone help here? openFile Output("file.txt", MODE_PRIVATE) seems can create a new file in /data/data/Package/files/.but it can't create in path /data/.
View 2 Replies View RelatedI am trying to create a file ,if it doesnot exist and tried to write some data to it. The same program I did in java, it was running fine.But when I try to do the same thing in Android I am getting NullPointerException at the place where I am trying to write data to file. And also, I did not find any new file in the current directory .
View 2 Replies View RelatedI have to create an app that draws a map reading data from a text file : for example the text file can be like
. index x y orientation
vertex 1 0 0 0
vertex 2 5 0 0.5
vertex 3 10 2 0.3
so i need to do in java something like fscanf does in c (fscanf scans the text file for known formatted data... example, in the file i written i know each line has a string float float float and i need to put them into a specific data structure that can be a list of elements "vertex"
next, when i have all the data, draw a simple image rappresenting the data..
my questions are...
there is a function like fscanf?
and then.. what's better for drawing the 2d map? i have tu use Opengl? At the end i have to draw the image pixel by pixel.. i hope there is something easier then openGL
I want to download my apk file into "/data/local/" directory. I am able do this in external storage but unable on "/data/local" also i was trying to create folder on same location but could not do that. Through "adb push" it is possible but i need to do this java program.
View 2 Replies View RelatedI am trying to play file which is stored in SDCARD in emulator. I have Linux O/S. So i need to provide command in run configuration. I am providing following parameter.
-sdcard /usr/android/sdcard/mysdcard.iso -audio oss [i]
The following is my code to play file.
try { mMediaPlayer.setDataSource("/sdcard/test_cbr.mp3"); mMediaPlayer.prepare(); // Giving error. mMediaPlayer.start(); }
I have some reference data in a text file (~5MB) that I want to use with might android application.The file is of the format:
1|a|This is line 1a
1|b|This is line 1b
2|a|This is line 2a
2|b|This is line 2b
2|c|This is line 2c
What I want to know is the most efficient way (less memory, fast, size etc.) to use this file within my application.
a.) Should I save the file as a raw resource and open and read the whole file whenever I need a certain line.
b.) Should I convert the file to XML and use XPath to query the file when ever I need to look up a value
<!--sample XML -->
<data>
<line number="1">
<entry name="a">This is line 1 a</entry>
</line>
</data>
c.) Should I just copy & paste the whole file as a static string array in the application and use that.
[EDIT] I will also need to search this file and jump to arbitrary keywords e.g. "line 1a".
Is it possible to copy a file located on the sdcard to a package's internal filesytem located at /data/data/packagename/files/ folder?
View 3 Replies View RelatedI am saving an image using openFileOutput and now i want to use this image in my java script file.
View 9 Replies View RelatedI want to create a PDF file dynamically in android application. like File f = new File("sample.pdf");
I have to use any external api for this?
In Android native calendar application while creating an event ,it is syncing with gmail and .ics file is creating.They are not using iCal4j java library to create the .ics file. I could not able to find out how to create the .ics file.
View 1 Replies View RelatedI 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?
What's the best way to create a temporary file in Android? Can [File.createTempFile][1] be used? The documentation is very vague about it.
View 1 Replies View RelatedI need to save some persistent data (byte array) in my application.I decided to write these data into a file on the Android hardware.But I cannot create a file under /system/ or /data/.Can any body tell me under which directory can I create a file to save my data except SDCARD(Because We cannot suppose every Android has a SDCARD)?
View 8 Replies View RelatedCan someone tell me how to create an executable jar file from eclipse for android? First of all, how the application should be before creating a jar file? Should it be runnable? Do i need an Activity class in it? I created a simple Android application, which has an activity class
View 4 Replies View RelatedI have a small piece of code that just won't write a file to the SD card on Android I made sure I created the folder CACHE_DIR before. It exists on the SD card, but canWrite() always returns false. This is the path: /mnt/sdcard/Android/data/org.my.app/files/thumbnailcache I can browse the directory /mnt/sdcard/Android/ data/org. my.app/files/thumbnailcache. Here comes the interesting part: When I try to write to /mnt/sdcard/Test/, it succeeds.How is that possible?
View 1 Replies View Relatedcan anybody tell how to create a xml file and write in android and where to put the file for aceess again is it possible to put into raw folder?
View 1 Replies View RelatedI want to create a file out side the application and memory card. How to create it? I know how to create it under application but how to create it outside the application?
View 12 Replies View RelatedI want to create an XML file to Store my Application Settings into. ( I can't use SharedPrefs because i want that Settings file later to be accessed by Some other Code.)
I can easily create an XML with java's code and store it in File too. but in Android I can create xml with the same java code but can't save it into the file coz they have removed the package javax.xml.transform from SDK.
I am Attaching the Java code here...
CODE:....................
I want my application to read configurations from a file . Is it possible to copy the default configuration file in apk and get it copied to file system when apk is installed ?
View 2 Replies View RelatedI have a bitmap "picPrev" which I got from my online server. I want to turn it into a file so I can send it. I was exploring this method. code...
View 2 Replies View RelatedI want my android application to create a .js file, which can then be read by my web view. I have read that the "assets" file is ready only so I cannot save a file to there during runtime. I am saving it in the default "/files/" directory.
I want to be able to reference this file from my webview HTML file. The webview is showing local html files stored in the assets folder. What is the file directory I should use to reference this the .js file in the .html file?
I need to create a protected file in android sdcard. I use file.setReadOnly(); bu it is not working. I don't know how to set a file readable, or how to protect an file from deleting, and the best solution would be to set it hidden.
View 7 Replies View RelatedActually I am new to android. I want to create a .txt file programatically, save data to it and then retrieve the data. I had write one application for that but when I run it it creates file under data/data/ <myPackage Name>/files folder , I can see only size of this file but I can't open it. but when I deploy the application on mobile then there is no any file created. If i supplied path like FileOutputStream fOut = openFileOutput ("/sdcard/ deore.txt",Context.MODE_WORLD_WRITEABLE); then it throws Exception. So, please tell me where the actual file is saved under the phone and how to open it.
View 4 Replies View RelatedHow do i create a file in phone memory instead of SD card.
View 1 Replies View RelatedI am new to Android and creating my first application.I want to create a file in the current directory. Basically I have a file bundled with aplication package as raw resource. I want to make a copy of this file in the current file. The reason to create copy in current directory is that I want my file reading code in native java, portable code.So my query is how can I create a file on current directory? The location current directory is important here as I do not want to make use of device specific hardcoded path or any Android API while reading the file. This is so I want my file reading code portable.
View 4 Replies View RelatedAs a newbie, I have been reading posts in learning how to do different functions.Using the Hello World example, I added a textview object to this application but the results come back as false on the screen.
View 8 Replies View RelatedI want to create file dir when apk installing ondevice. does it possible?and how?
View 2 Replies View RelatedI am using XML file for creating Context Menu for my ListView. (Please see below). I also want to set a header for this Context Menu. I read (at http://www.mail-archive.com/android-developers@googlegroups.com/msg43062.html)that I can use menu.setHeaderTitle(myContextMenuTitle) in onCreateContextMenu Method. But I need to set this in XML file. How can I accomplish this?
Following is code for onCreateContextMenu Method, correct me if I am doing anything wrong. This is my context_menu.xml file:
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">
<item android:id="@+id/open" android:title="Open"/>
</menu> Code...
I do not know what is cause of failing to create a new file on a sdcard of G1, the code is below:
File temp = File.createTempFile("test", ".temp", Environment.getExternalStorageDirectory()); and the permission of sdcard is: d--rwxr-x.
Also fail if I try using the code below:
File file = new File(Environment.getExternalStorageDirectory (),"media.temp"); file.createNewFile();
Giving out about Parent directory of file is not writable.