i am new to android. i have tried this code
in manifest file i wrote this
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
in java code
File sdcard = Environment.getExternalStorageDirectory();
//Get the text file
File file = new File(sdcard,"store.txt");
but i am getting above exception
i want to perform file read and write operations and i am using version 4.4.2.
i am getting this error
06-14 02:19:44.491: D/Shopping Cart(1700): open failed: EACCES (Permission denied)
Under kitkat your app can only write to an app specific directory on the -removable- sd card. You get possible directories using getExternalFilesDirs().
Is your permission is right place in manifest file as
<application>
...
</application>
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
</manifest>
Edit
Try to edit the Emulator
go to android virtual device manager and then edit the emulator
set say 100 MB for Sd card for the respected emulator and say Ok
save and close emulator and start
path saved in DDMS is mnt/sdcard/yourfilename
it worked for me the app is not giving Error and is working
Please see more at this link Cannot Write to sdcard in Android emulator
and this link Guide to Emulating an SD Card Using the Google Android Emulator
Related
I'm trying to save a file in the folder DCIM on my mobile phone (Samsung SM-N960F, Android 8.1.0); I'm using
Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM)
to create a folder in the folder DCIM, but it's not working.
I suspect you do not have the proper permission for reading and writing to external storage. Add this to your project's build.manifest,
<manifest>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
...
</manifest>
TinyXML-1 can't open file. File exist on that path, but xmlDoc.ErrorDesc() writes Failed to open file. Can tinyXML1 open files on android or I must use Tinyxml2?
What is the exact error on your logcat?
It can be just that you didn't put the required permission:
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
In your AndroidManifest.xml
Debug.startMethodTracing("tracefile");
Getting exception while executing above line of code in Android 2.3
java.lang.RuntimeException: Unable to open trace file '/sdcard/copy.trace': Permission denied
I have added required permission in AndroidManifest file:
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
My device is from a view server.
Anybody could suggest me any suitable solution for this.
Thanks in Advance.
If this is an emulator, edit the device in AVD and verify that the SD Card: has memory allocated.
I'm using synthesis To file to write in external storage .but i found exception on file not found error.i'm unable to read file from the sdcard. How to store in external device?
Please declare this permission in your manifest:
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
I'm following the instructions here:
Debugging sqlite database on the device.
My problem arises when trying to copy the file to sdcard. If I run the full command, it doesn't give me any message, and the file isn't there when i go there through My Computer. If I break the commands down and run them one by one, when I do cat, I get the following:
sh: can't create /sdcard/Database.db: Permission denied
I also have both permissions:
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
Any idea what's wrong?