Android :: Upgrade With SD Card Write Permission

Oct 23, 2009

If you have an app that targets 1.6 ( using targetSdkVersion=4 ) and that is still backward compatible with 1.5 (using minSdkVersion=3) , and it has the new WRITE_EXTERNAL_STORAGE permission because it writes to the SD card, there is a problem when the OS is upgraded to 1.6. If a user has Android 1.5 with the app installed, and then gets Android 1.6, the permission is not granted and writing fails. The issue can be solved if the user re-installs the app. I have not experienced the issue myself, but a few users have reported it. Can anybody else confirm this. There is not much that can be done about it, but it would need to be adressed if there is another OS upgrade.

Android :: Upgrade with SD card write permission


Android :: Permission To Write On SD Card

Oct 13, 2010

EDIT: Problem solved, FileOutputStream defined uncorrectly, change to: fos = new FileOutputStream( root + "/" + saveFileName );

I have a problem writing to the SD card, here is the code: (Sorry about the layout of the code, just copy pased it )

public class SaveAndReadManager {
private String result;
private String saveFileName = "eventlist_savefile";
public String writeToFile( ArrayList<Event> arrlEvents ){
FileOutputStream fos = null;
ObjectOutputStream out = null;...............................

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Android :: Permission To Write To The SD Card

Jan 23, 2010

I would like my app to archive the application DB to the SD card. In my code I check if the directory can Write(), and if not then throw an IOException. In this perticular instance, I am trying to copy the db file to the root directory on the SD card, but its throwing an IOException. How can I change the permission on a folder/file to be able to write to it

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Android :: Getting Permission Denied When Trying To Write To A File

Jul 30, 2010

I am trying to take a dump of encoded data stream to a file. I had added the code to make the file dump in pvmf_omx_enc_node.cpp file, in the Fillbufferdoneprocessing () function. But i am getting the error 'permission denied' for fopen("/sdcard/enc_bitstream.bin,"wb+""); what i need to do to enable the permission to write to sdcard

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Android :: Read / Write Permission In Data Directory?

Jan 4, 2010

I m using Android 1.5 my data directory does'nt have the read/write permissions

System.out.println("DAta can write??--->"+Environment.getDataDirectory().canWrite());
System.out.println("DAta can read??--->"+Environment.getDataDirectory().canRead());

So please suggest me how to provide permission for the data directory.
What m trying to do is to create a file and add some content to it iin the Data storage of the emulator like as below

private void writeToSDCard() {
try {
File lroot = Environment.getDataDirectory();
if (lroot.canWrite()){
File lfile = new File(lroot, "samplefile.txt");
FileWriter lfilewriter = new FileWriter(lfile);
BufferedWriter lout = new BufferedWriter(lfilewriter);
lout.write("XXXXXXXXXXXXXXXXXX");
lout.close();
}
} catch (IOException e) {
Log.e(m_cTAG, "Could not write file " + e.getMessage());
}
}

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Android :: Permission - Modify / Delete SD Card Contents

Jul 22, 2010

Does this mean that an app has access to internal AND sd card contents, or just the contents of the sd card?

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Android :: Cannot Write To SD Card

Apr 12, 2010

Sorry for the ambiguous title but I'm doing the following to write a simple string to a file:

try {
File root = Environment.getExternalStorageDirectory();
if (root.canWrite()){
System.out.println("Can write.");
File def_file = new File(root, "default.txt");
FileWriter fw = new FileWriter(def_file);
BufferedWriter out = new BufferedWriter(fw);
String defbuf = "default";
out.write(defbuf);
out.flush();
out.close();
}
else
System.out.println("Can't write.");
}catch (IOException e) {
e.printStackTrace();
}

But root.canWrite() seems to be returning false everytime. I am not running this off of an emulator, I have my android Eris plugged into my computer via USB and running the app off of my phone via Eclipse. Is there a way of giving my app permission so this doesn't happen? Also, this code seems to be create the file default.txt but what if it already exists, will it ignore the creation and just open it to write or do I have to catch something like FileAlreadyExists(if such an exception exists) which then just opens it and writes?

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Android :: SD Card's Write Authority In 1.6

Oct 16, 2009

Current I just use Android 1.6 emulator. I am writing a simple code which needs write one result file to SD card. But It is failed to open one file to write (Reading is ok). I tried to use C level API and Java level API but both of them are failed. Furthermore, I tried to use chmod comand in the shell but it is still useless. It is known in the Android 1.5 or befor, it should be OK. Is it a new feature of 1.6 or it is just my emulator's issue? If it is a new feature, can someone figure out how to write the data into SD card?

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Android :: Write To Sd Card Folder

Aug 23, 2010

I am using the following code to download a file from my server then write it to the root directory of the sd card, it all works fine:

package com.downloader;
import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import android.os.Environment;
import android.util.Log;
public class Downloader {......................

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Android :: Sd Card File Write

Mar 17, 2010

I'm trying to write a file from an Http post reply to a file on the sdcard. Everything works fine until the byte array of data is retrieved. I've tried setting WRITE_EXTERNAL_STORAGE permission in the manifest and tried many different combinations of tutorials I found on the net. How my app writes file is by using a thread. Specifically, a thread is invoked from another thread when a file has to be written, so giving an activity object didn't work even though I tried it. The app has come a long way and I cannot change how the app is currently written. CODE:..................

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Android :: Write Data In SD Card?

Nov 1, 2010

my application is contact list and i want to store my contact data in sd card but how can i store data in sd card, or if i will use database then how i want to store it or using simple file than how i want to store it

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Android :: How Do We Write File To SD Card

Jul 3, 2010

Today, i tried to read and write file on the android. but it seems that file write mode is only provided for SD card? most of article is asked about SD card written. Is there no way to save data internal side?So when i install the application to real device. then its application installed in SD card or internal space? because we have make it log file from our application for everytime while application run.So, how do we write the file to SD card and specified the absolute path where we saved? to load this file.

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Android :: Write File To SD Card

Dec 14, 2009

I'm trying to create a file on the sd card.but that throws a FileNotFoundException. Isn't OutputStream supposed to create the file, if not found on disk? I'm looking to write image data there.This is on a 1.6 emulator. I have an SD card installed, I'm looking at the sdcard folder through DDMS, so it's there.

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Android :: Any Application To Write Files To SD Card?

Aug 19, 2009

Can we assume that App can write to /sdcard some file? What can be reason one cannot do that? I could not find any documentation on sdcard rules in google docs.

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KitKat 4.4 :: Permission Denied To SD Card

Mar 27, 2014

After updating my galaxy s4 to android 4.4.2, sd card (samsung 64gb) is not working correctly. I can read files, but can't edit or delete them by any file explorer. Message: "permission denied".

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Android :: Fastest Method To Read / Write SD Card?

Jul 18, 2010

There are a lot of different classes that can be used in various ways to read/write to files in Android. For example, you can make use of java.nio.ByteBuffer, FileOutputStream and BufferedOutputStream. Are there any general guidelines for what to use to read/write quickly to the SD card? For example, BufferedOutputStream seems as if it should make things faster but I'm unsure the buffer size should be set for. Specifically, I want to read/write byte arrays that are ~1Mb in size as quickly as I can.

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HTC Desire :: Can't Take Pictures Due To SD Card Permission Error

Apr 10, 2010

It seems that sometimes I can't take pictures due to permission errror on SD card. If i reboot the phone it'll work again. Anyone else get this? Also stops backup and others from running. Can see and load the photos on the SD fine though

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HTC Desire :: Insufficient Permission Error On SD Card

Jul 9, 2010

I know this was a common error experienced by a lot of people, but did anyone ever get to the bottom of it. I have just had it for the first time.

The EVO 4 had a similar problem and HTC moved quickly to release an update which seems to have solved it.

I had heard that the bug could be caused by the auto-backup feature, so I had never used it. However, I recently turned auto-back up on and, low and behold, I get the error. A reboot fixes the problem and I have not had it again since, although I have turned auto-update off.

Some people say auto-update messes up the permissions, others say the supplied cards are of a low quality and prone to corruption... but does anyone know for sure?

Whilst the error is present, you cannot modify the contents of the card and cannot therefore take pictures etc.

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General :: Why Does Reading SD Card Not Require Permission

Jan 23, 2012

Like the title says why are apps allowed to read the contents of files on the SD card without asking permission? Apps have to ask to read SMS, Calendar, and everything else. It seems like a huge security hole to me.

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HTC EVO 4G :: PC Can't Write To SD Card

Sep 18, 2010

When I plug my Evo into my PC, I can browse and view all the files on the SD Card, however, when I try and write something to the card windows gives me an error. I have tried creating a directory on the card using the Astro App and I can create a directory from the phone.

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Android :: ARM Directly Read / Write File On Sd Card I/O Without Cache

Nov 16, 2010

I need to directly read/write a file on sd card without cache. I can use "posix_fadvise" to achieve the purpose on Ubuntu I try NDK to make the function call, but it seems disabled on Android How can I do?

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Android :: Write / Read Access To SD Card In Manifest File

Mar 1, 2010

Is there a right associated with write/read access to the sd card that needs to be set in the manifest.xml file? I'm currently trying to write to the sd card using a standard FileOutputStream here:

FileOutputStream out = new FileOutputStream("/ sdcard/images/"+imageName);
bmp.compress(Bitmap.CompressFormat.JPEG, 90, out);

But it doesn't seem to be working. It just says the location isn't found, which can happen if there are no permissions to read/write to the location.

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General :: Can't Write To SD Card Over WiFi

May 19, 2014

My S4 died from a smaller than hairline crack in the display - Cha-ching! $175The cat knocked my laptop-the same one on which I had just successfully re-flowed the video chip-off on the floor, breaking, of course!, the screen - ~$50 (when I get around to it)

Now, the first time I try to add some new tunes to my "new" phone, I can't manipulate any data on its SD card via WiFi. I can write, delete, move, rename, anything I want to/from the card from within the phone itself. Just not over WiFi.

I thought it was perhaps the app I was using so I tried another but same thing. The best error code I get is the highly informative "Operation Failed"-Period.

Is there some setting somewhere that holds sway over the ability to write to the SD card?

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General :: Write In External SD Card?

May 15, 2012

Specs: ainol novo elf 7 tablet A10 processor. it has android market. (google play )

ICS 4.0.3, kernel version 3.0

it came with some chinese apps etc (identifying which rom it was, i believe it was factory rom).I ask torrents to download in my sd card, it says error , permission denied .

EXT CARD SIZE: 2 gig only. manufactuer says tab supports upto 32 *gig card...card wroks fine on my nokia x2-00 phone

Investigation:

1)i tried creating directory in using File manager...it did, ...it didnt show option of deleting / pasteing something.
so i used es file explorer........when I asked it to delete that empty directory i created , it said error permission denied.

2)i try to paste something, it fails.

3)i try to delete something it fail.

So, FORMATTED the memory card (via pc...connected it as usb, formatted, ejected), TRY TO PASTE SOMETHING via tablet, it fails

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General :: Can't Read / Write SD Card

Oct 23, 2012

I did a backup using Titanium Backup and Go Backup and after wiping my Motorola Defy, tried to restore apps, contacts etc. The problems I encountered were:

1) Go Backup can't recognize backup directory on SD card for some reason.
2) Can't move apps to SD. An error occurs: "Move Application: Failed to move application. There is not enough storage left." Needless to say, I have more than enough storage.

This is was I encountered by far, although I believe these are just a small part of the symptoms for a single problem.
Maybe its because there are no permissions, or moving apps is impossible because of an existing app files on the SD card.

What is the actual cause for this? Or is there a tool to fix the permissions on the Defy?

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Android :: Write Contents Of Custom View To Large Image File On SD Card

Mar 12, 2010

I have a class that extends View. I override the onDraw method and allow the user to draw on the screen. I am at the point where I want to save this view as an image. I Can use buildDrawingCache and getDrawingCache to create a bitmap that I can write to the SD card. However, the image is not good quality at a large size, it has jagged edges. Since I have a View and I use Paths I can transform all by drawing to a bigger size. I just don't know how to make the Canvas bigger so when I call getDrawingCache it doesn't crop all the paths I am just transformed. What is happening is I transform all my paths but when I write the Bitmap to file I am only getting the "viewport" of the actual screen size. I want something much bigger.

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HTC Desire :: Unable To Read / Write To 8GB SD Card

Apr 26, 2010

My new HTC desire is unable to read or write to my 8GB SD card which was previously inside my HTC HD touch.
Why is this? I've swapped the SD cards around - i.e. the 4 GB SD card which it came shipped with is now inside my HTC HD touch It doesnt have a problem reading or writingto the 4 GB SD card that it came shipped with. I would prefer not to have to format the card

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KitKat 4.4 :: Can 4.4.2 In-Built Apps Write To SD Card Or Not

Jun 3, 2014

I have a Samsung Galaxy S4 running 4.4.2 KitKat. I tried to set the default image, video and documents directories to a folder on the SD card by going to MyFiles -> Settings -> SDCard path. I am taking photos & videos using the default app, not a 3rd party app. Although it is showing me the default is set to the SD card, the images I take using the default camera app all seem to save to the default internal storage /storage/emulated/0/DCIM/Camera.

getting the default image directories to be on the SD card?

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General :: How To Write SIM Card Emulator Software

May 5, 2011

Is it possible to write an SIM card emulator software for Android?

By doing this, putting in a sim card in the phone, starting up an app that clones it in the memory, doing the same with a second sim card and then being able to change software wise?

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Media :: Get Audio Onto SD Card / Remove Write-protection?

Oct 1, 2010

I have downloaded music on my computer (MP3) but how do I get it onto the SD card in the phone? I tried just copying it like I would to any other drive and it says that it is write-protected. It says to remove the write-protection.

How do I get music on the SD card?
If necessary, how do I remove write-protection?
If I remove write protection will this affect my phone or my files in any way?

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