android - How to use SharedPreferences to save a URI, or any Storage?

Question

URI imageUri = null;

//Setting the Uri of aURL to imageUri.
try {
    imageUri = aURL.toURI();
} catch (URISyntaxException e1) {
    // TODO Auto-generated catch block
    e1.printStackTrace();
}

I am using this code to translate a URL to a URI. How could I save the imageUri to a SharedPreferences, or a memory where it wouldnt be deleted onDestroy()?

I dont want to do SQLite database because the URI will change when the URL's change.I dont want to use up memory for unused URI's

Answer 1

You can just save a string representation of your URI.

SharedPreferences settings = getSharedPreferences(PREFS_NAME, 0);
SharedPreferences.Editor editor = settings.edit();
editor.putString("imageURI", imageUri.toString()); <-- toString()

Then use the Uri parse method to retrieve it.

SharedPreferences settings = getSharedPreferences(PREFS_NAME, 0);
String imageUriString = settings.getString("imageURI", null);
Uri imageUri = Uri.parse(imageUriString); <-- parse