i am newbie to android .
.
I have problem that how to get external storage directory.In my device it is storage/sdcard1 path.
but it is also not working.
How can I set external storage directory path to db ?
PLease help.
Any answer will be appreciated.
Before answering this question I want you know something about the android framework..
Android contains default sqlite handling options which saves database file in internal storage directory
It is good practice to use it..
But still if you want to save in custom directory follow these instructions
By default android partitions the internal storage into a partition called SD card
which can be accessed by calling frameworks Function
File Environment.getExternalStorageDirectory()
But on some devices there is an option have external memory card
If that is your case you can do that by calling java function like this
new File("/mnt/sdcard1/");
Related
I want to create a Directory like we have for whatsapp in my internal storage. I've checked path_providers but thats not exactly what I need.
I want to create a directory in our default internal storage where the Android, Downloads, Pictures are all present and store data to that folder.
As asked the path I need is /storage/emulated/0/MyFolder.
Please don't suggest path_providers or shared_preferences. I need to create a folder in the path where the File manager in our phone opens up.
Is it possible? If yes, please tell me how can I do it?
I got the answer to do this in Native Java
as
Environment.getExternalStoragePublicDirectory("myFolderName");
Just check if the directory already exists and create if not exists!
I am developing an android application and i need to read words from a file to create a Trie. Is there a way i can write the file to internal storage on install so that only my application can access it, or should i hard code the words. Any suggestions are appreciated
If the file isn't going to change, you should put it in your assets directory. If it is going to change, you can copy it from your assets to internal storage and it'll be private. External storage (often an SD card) is word-readable.
http://developer.android.com/guide/topics/data/data-storage.html
http://developer.android.com/reference/android/content/res/AssetManager.html
Can anyone help me ? Is it possible to create shared preference files in sdcard rather than on private path of an android application.
You cannot modify where shared preferences are stored.Its a private storage. if you want to use sd card use
Environment.getExternalStorageDirectory(). and get the path of directories stored in sdcard.
it is possible by reading&writing the xml file into the external storage ,but it's not the same as sharedPreferences. you will have to implement your own way , or use the android code of this class.
however , there are some disadvantage over using the internal storage:
anything you store on the sdcard is visible to every application and the end user can read it by just opening it.
only in the internal storage you get some sort of protection against reading the file , so that only rooted devices can read the files.
external storage can also be unmounted , so the data can sometimes be unreachable. you need to handle possible errors that can occur because of this.
uninstalling the app while the sd card is mounted means that the data will stay on the sdcard .
I want to save data from internet in asset folder in Android. I used Eclipse IDE to develop the android application.
How i can achieve this ?
Thanks.
The assets directory is readonly. It's defined and initialized at compile time, you cannot add or edit its contents.
Source (note it doesn't mention anything about writing to files...only reading them.)
Use the SDCard for such operations.
slote is right . use internal file storage/SD Card or sqLite database to save image
I need a little help with understanding what can I do and cannot in android. I'm working on application which needs to ask user in first start to select a device (internal/external storage) where to save the data which my application is downloading over internet. So I'm trying to find answer for a few questions about this issue :
Is there any limit for data in internal/external storage in Android for a single application.
Can I set the directory of sqlite database which my app is using and If I can, is it a good practice or not.
What should I consider when user decide to change the destination of application's data from internal to external storage. Should I create all the folders and etc. again or Android platform is doing it automatically?
Thanks in advance!
Your limit on external storage(SDCARD) is determined only by its capacity, I'm not sure about the internal storage, maybe it's the same situation.
You can extend SQLiteOpenHelper and create your own DB adapter, which will manage your database and store it on SD card or /data/databases directory. I think that it's better not to place database on SDCARD, because any other app can access it there. On the other hand, /data/ folder is private.
It's tricky thing. You should be careful while copying data. Check whether directory of file exist, before writing into them. It's better to explicitly create all files and directories before trying to write to them.
Here is a good example of Database Helper for accessing database. You can modify it so it can use both external and internal storage.