In my Android application, I want to rename the file name at runtime. How can I do it?
This is my code:
CODE:.......
I also used renameTo(File f) method but its also not working..
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Does anyone know if there is a way to rename the icons/shortcuts for apps? Do these icons reside in a folder within root somewhere? I wonder if renaming the icons/shortcuts would allow us to reorganize the way they are sorted in the app tray (since it is alphabetic).
View 7 Replies View RelatedI want to rename an context private file created with openFileOutput() but I don't know how...
I tried that:
CODE:..................
This code throw FileNotFoundException but the documentation said "Open a private file associated with this Context's application package for writing. Creates the file if it doesn't already exist." so the new file should be created on disk.
The problem: When I try to read from the new renamed file I got FileNotFoundException!
I have an application that can read and write txt files to the phones sdcard. By using this code for reading files:
@Override protected void onListItemClick(ListView l, View v, int position, long id) { super.onListItemClick(l, v, position, id); mFileNameOpen = files.get(position);
String st = null; mVector.clear();
notepad.mNewEmpty = false; try { File f = new File(Environment.getExternalStorageDirectory()+"/ notepad/"+mFileNameOpen); FileInputStream fileIS = new FileInputStream(f);
BufferedReader in = new BufferedReader(new InputStreamReader(fileIS));
do { st = in.readLine();
mVector.add(st);
}while(st!=null); in.close(); ...
} catch (FileNotFoundException e) { e.printStackTrace();
} catch (IOException e) e.printStackTrace();
and this to write them:
try { File root = Environment.getExternalStorageDirectory();
File fileCheck = new File(root, "/notepad/" + fileNameSave + saveExtension);
boolean exists = fileCheck.exists();
if (!exists) { if (root.canWrite()) { File textFile = new File(root, "/notepad/" + fileNameSave + saveExtension);
FileWriter textWriter = new FileWriter(textFile);
BufferedWriter out = new BufferedWriter(textWriter);
out.write(SAVEAS); out.close(); written = true;
} else { written = false; else { written = true; showMaybe = 1; showDialog(DIALOG_SAVE_EXISTS);
catch (IOException e) {Log.v(getString(R.string.app_name), e.getMessage());
This has been working fine on my Tattoo and all the emulators I've tried this on. But it does not seem to be working on moto droid. Is there something different to consider with moto droid? Or have I missed something in the manifest maybe?
I am developing an android application where i need to determine the free space available on the sdcard.
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File f1=new File("myFirstFile");
File f2=new File ("mySecondFile");
boolean renameSuccess=f1.renameTo(f2);
Log.d("Rename Success value :",renameSuccess); //but it returns the false value.
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