Write on Internal Storage

Question

Is there any way to write in internal storage in Android? I tried the following from google developer site-

File file = new File(context.getFilesDir(), filename);

String filename = "myfile";
String fileContents = "Hello world!";
FileOutputStream outputStream;

try {
    outputStream = openFileOutput(filename, Context.MODE_PRIVATE);
    outputStream.write(fileContents.getBytes());
    outputStream.close();
} catch (Exception e) {
    e.printStackTrace();
}

The problem is that whenever I uninstalls the app the file is also deleted. However I am required to keep that file even after uninstalling the App...

context.getFilesDir() returns your application dir "/data/data/your package/files". This folder is deleted when you uninstall your app. You should consider placing your files in other directory. — Sebastian M, May 14 '18 at 11:38
rerefer this link https://stackoverflow.com/questions/8330276/write-a-file-in-external-storage-in-android — , May 14 '18 at 11:41

score 1 · Answer 1 · answered May 14 '18 at 12:02

1

You have to define which type of file you are try to create like.

FileType = "image"; FileType = "text";

Define filetype in your code.

answered May 14 '18 at 12:02

Praveen Kumar

277
2
12

score 0 · Answer 2 · answered May 14 '18 at 11:40

When you use context.getFilesDir() you're accessing the project files directory. If you want to save it externally, you should use something like Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOCUMENTS) instead and use permissions in your Android Manifest:

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />

You can look for other directories here.

Write on Internal Storage

2 Answers2