android logging sdcard
- by Abhi Rao
Hello,
With Android-Emulator I am not able to write/create a file on the SD Card (for logging).
Here is what I have done so far
- Run mksdcard 8192K C:\android-dev\emu_sdcard\emu_logFile
- Create a new AVD, when assign emu_logFile to it so that when I view the AVD Details it says C:\android-dev\emu_sdcard\emu_logFile against the field "SD Card"
- Here is the relevant code
public class ZLogger {
static PrintWriter zLogWriter = null;
private static void Initialize() {
try {
File sdDir = Environment.getExternalStorageDirectory();
if (sdDir.canWrite()) {
:
File logFile = new File (sdDir, VERSION.RELEASE + "_" + ".log");
FileWriter logFileWriter = new FileWriter(logFile);
zLogWriter = new PrintWriter(logFileWriter);
zLogWriter.write("\n\n - " + date + " - \n");
}
} catch (IOException e) {
Log.e("ZLogger", "Count not write to file: " + e.getMessage());
}
}
sdDir.canWrite returns false - please note it not the exception
from adb shell when I do ls I see sdcard as link to /mnt/sdcard. When I do ls -l /mnt here is what I see
ls -l /mnt
ls -l /mnt
drwxr-xr-x root system 2010-12-24 03:41 asec
drwx------ root root 2010-12-24 03:41 secure
d--------- system system 2010-12-24 03:41 sdcard
whereas if I go to the directory where I created emu_sdcard - I see a lock has been issued, as shown here
C:dir android-dev\emu_sdcard
Volume in drive C is Preload
Volume Serial Number is A4F3-6C29
Directory of C:\android-dev\emu_sdcard
12/24/2010 03:41 AM .
12/24/2010 03:41 AM ..
12/24/2010 03:17 AM 8,388,608 emu_logFile
12/24/2010 03:41 AM emu_logFile.lock
1 File(s) 8,388,608 bytes
3 Dir(s) 50,347,704,320 bytes free
I have looked at these and other SO questions
Android Emulator sdcard push error: Read-only file system (2)
Not able to view SDCard folder in the FileExplorer of Android Eclipse
I have added the following to AndroidManifest.xml
**uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" **
Please let me know your thoughts - what am I missing here? Why does canWrite return false? What should I do to add permissions to sdcard?
