I need to place a file on a specific folder, so that my application can read it. First i want to try to create a new file with a specific path, but anyway i try, on the android dev tool on eclipse, I have an IOException.
Do you know a way to create "helloworld.txt" - For example - on the virtual device?
Thanks.
PS: I tried "new File(Environment.get..., "helloworld.txt").mkdirs();", and stuffs like that
If you want to create a file in the sdcard, you should check if the sdcard is ready (more info here), apart from the fact you need this permission in the AndroidManifest.xml
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
Try not use hard-code the path of the sdcard, use instead the API for that.
On the other hand, if you want to create a private file on the phone storage you can use this methods:
FileOutputStream fos = context.openFileOutput(FILE_NAME, Context.MODE_PRIVATE);
You can not access system folder by using android app.You need to transfer the file from your system to Android Emulator's Virtual SD Card by using file explorer availble with ADT plugin for android in eclipse.
Open file explorer in eclipse and import the file to device.
Related
I've got c++ code in which I try to get a file from a directory on an android device. I've tried different ways to set the path which I pass to the fopen() function like:
/Android/data/com.myapp/files/Blip.wav
There actually is this file. But I guess that this is not a proper way to write a path. (The example was obtained by the java code )
getContext().getApplicationContext().getFilesDir().getPath() + "/Blip.wav"
There actually is this file
Since I have never seen an Android device with an /Android directory, that is unlikely.
What would fit is if you are looking at /Android/data/com.myapp/files/Blip.wav in a desktop file manager, using a USB or similar connection. In that case, Android/data/com.myapp/files/Blip.wav is a relative path in external storage. Specifically, it maps to:
new File(getContext().getExternalFilesDir(), "Blip.wav")
Try using this.
File root=Environment.getExternalStorageDirectory();
File file=new File(root,"/PersonData/Blip.wav");
Here personData is the name of folder
Inside onCreate() I have this line:
File aux = context.getFilesDir();
which outputs this:
/data/user/0/com.example.tirengarfio.myapplication/files
but.. where is this path exactly insde Linux filesystem? or is it taking as reference the Android Studio Project root directory? os should I create it somewhere?
EDIT:
As I said to #Simas, but by the moment Im not connecting any smartphone. Im just using emulators on Linux. My intention is just reading a file using
FileOutputStream fos = openFileInput(FILENAME, Context.MODE_PRIVATE);.
So, where should I place the file inside the Linux filesystem?
This is the path of your app's local data folder. It can either be in the memory card or the device storage.
There's no easy way to access it if your device is not rooted but here's a starter:How to access data/data folder in Android device?
Let us see what the doc says :
Returns the absolute path to the directory on the filesystem where files created with openFileOutput(String, int) are stored.
No permissions are required to read or write to the returned path, since this path is internal storage.
So actually the files you will find are those which were saved with the very same function openFileOutput(String,int) by your/other applications.
So basically if you want to test some functionality (which I suppose) write a unit test that uses this API openFileOutput(String,int) to store some mockup data and then get it again with Context.getFilesDir() and some code for file processing.
I get the difference between the two but is there a way to see the internal storage file? Because I want to check if the file is like I want it to be.
Then I created a external file and when I'm programming in eclipse and I test my app the file is created and I can see it on my phone via a filemanager but when I browse via my windows explorer to the HTC memory the file isn't there. Is this because I'm working in eclipse and this is debug? Or is there a way to check the file on my computer?
Thanks already
public static String filePath = Environment.getExternalStorageDirectory() + your folder path
it give a path of your memory storage either it is internal or external it give
Bhanu Sharma solution works. For the external file there is in eclipse a nice way.
Open the file explorer window in eclipse and then you can click a file and right above there are icons to push and pull the file to your device. ;-)
In android, I am trying to save the XML file locally.
I am using the below syntax to do it
File myFile = new File(getFilesDir()+"/loginUser.xml");
myFile.createNewFile();
It is working fine in emulator as well as device.
Now my question is what is the path this getFilesDir() in System(in Emulator)
See http://developer.android.com/guide/topics/data/data-storage.html#filesInternal.
It can depend on the system but generally files are stored somewhere in /data/data.. in separate directories for each app.
I am new to android. I am trying to download a file from server and save the file in a particular path. The application is working fine. However I am not able to find the path of the downloaded file. In the code I have given as
File output = new File("/data/data/com.test.firstApp/", fileName);
Where can i find the file on my system?
Don't use hard coded file paths. The framework will give you the base path of the area you want to save files to.
For the SD card, use Environment.getExternalStorageDirectory()
For local files, use Context.getFilesDir() (or Context.openFileOutput(String name, int mode), etc)
For local cache, use Context.getCacheDir()
Adding to Rich's answer, in the likely event you will end up writing to external storage make sure to include this permission in the manifest:
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
Check this page http://developer.android.com/guide/topics/data/data-storage.html
You can find there many methods how to save file. What is more you can also read something about good practices.
Cheers