I a newbie in android development. I sure that many people have same issue. I ve a Galaxy S7 phone without SD Card. So no external storage. But i want create file with my app which have to be access from windows explorer to export it.
Note : debbug in USB mode - No virtual device
Of course in my manifest file i ve setted those 2 permissions :
android.permission.WRITE_INTERNAL_STORAGE
android.permission.WRITE_EXTERNAL_STORAGE
To be sure i ve created a file i use this write method and the following read method :
File root = this.getExternalFilesDir(Environment.DIRECTORY_DOCUMENTS);
File customFolder = new File(root.getAbsolutePath() + "/CustomFolder");
customFolder.mkdirs();
file = new File(customFolder, "myData.txt");
// Must catch FileNotFoundException and IOException
try {
FileOutputStream f = new FileOutputStream(file);
PrintWriter pw = new PrintWriter(f);
pw.println("Howdy do to you,");
pw.println("and the horse you rode in on.");
pw.flush();
pw.close();
f.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
Log.i(TAG, "File not found");
} catch (IOException e) {
e.printStackTrace();
Log.i(TAG, "I/O exception");
}
To read myData.txt
try {
BufferedReader br = new BufferedReader(new FileReader(file));
String line;
while (true) {
line= br.readLine();
if (line== null) break;
tv.append("\n" + " " + line);
}
br.close();
} catch (IOException e) {
e.printStackTrace();
}
So all method are OK, but when i browse my files system to get the created file myData.txt, I can't find it !!
Most of the apps we install have their own folder on the root, like Snapchat, Whatsapp etc etc
I d like to make the same thing, what is the way to write file in:
ROOT --> MyApplicationName --> CustomFolder
Thanks for your help :)
I finally found a solution adding a MediaScannerConnection.scanFile() method.
MediaScannerConnection.scanFile(getApplicationContext(),new String[]{file.getAbsolutePath()},null,new MediaScannerConnection.OnScanCompletedListener() {
@Override
public void onScanCompleted(String path, Uri uri) {
// Do something here if you want
}});
But this solution don't totally fit me, because the storage folder is :
Android/data/donain_name/files/Documents/CustomFolder
I'd like to have same result like whatsapp application which can have a folder in the internal storage root.
The result i want is : MyApplication/CustomeFolder
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