Re: [android-developers] File read and write.

On Sat, Jul 3, 2010 at 12:40 AM, choi <devmchoi@gmail.com> wrote:
> Today, i tried to read and write file on the android. but it seems
> that file write mode is only provided for SD card?

With the WRITE_EXTERNAL_STORAGE permission, you can write to the SD card.

> most of article is asked about SD card written. Is there no way to
> save data internal side?

You can call getFilesDir() from your Activity or Service to get a
directory in the on-board flash that you can read and write to.

> So when i install the application to real device. then its application
> installed in SD card or internal space?

For Android 2.1 and earlier, it is installed in internal space.

For Android 2.2 and beyond, you have the option of allowing the user
to install it on the SD card or internal space.

> So, how do we write the file to SD card and specified the absolute
> path where we saved? to load this file.

Use Java file I/O. Use Environment.getExternalStorageDirectory() to
get a File object pointing to the root of the SD card.

--
Mark Murphy (a Commons Guy)
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