With the following code, I try to write to my sdcard:
public void writedata(String data) {
//BufferedWriter out = null;
System.out.println(data);
try{
FileOutputStream out = new FileOutputStream(new File("/sdcard/tsxt.txt"));
out.write(data.getBytes());
out.close();
} catch (Exception e) { //fehlende Permission oder sd an pc gemountet}
System.out.println("CCCCCCCCCCCCCCCCCCCCCCCALSKDJLAK");
}
}
The permission in the Manifest:
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
But now, when I open the file, nothing is in there. Where´s the problem? I´m sure data
has some value.
EDIT:
I get this message in the LogCat:
02-06 01:59:51.676: W/System.err(1197): java.io.FileNotFoundException: /storage/sdcard0/sdcard/tsxt.txt: open failed: ENOENT (No such file or directory)
I tried to create the file on the sdcard but still the same error. Is there a code that the File is created if it doesn´t exists?
Try with this code:
File sdCard = Environment.getExternalStorageDirectory();
File dir = new File (sdCard.getAbsolutePath() + "/dir");
File file = new File(dir, "tsxt.txt");
FileOutputStream f = new FileOutputStream(file);
So the path to the file is not correct. You should remove directory name:
File dir = new File (sdCard.getAbsolutePath() + "/");