setImeOptions: why the "Done" button does not show on the soft keyboard?

Question

I try to set the "Done" button on the softkeyboard by using input.setImeOptions(EditorInfo.IME_ACTION_DONE);

but the "Done" button simply does not show on the softkeyboard.

Any suggestion please?

public void modif(int position) {     AlertDialog.Builder alert = new  AlertDialog.Builder(MainActivity.this);     alert.setTitle("Modifica");     EditText input = new EditText(MainActivity.this);     input.setImeOptions(EditorInfo.IME_ACTION_DONE);     alert.setView(input);     final Editable value = input.getText();     alert.setPositiveButton("Ok", new DialogInterface.OnClickListener() {           public void onClick(DialogInterface dialog, int whichButton) {             Toast.makeText(getApplicationContext(), value,   Toast.LENGTH_LONG).show();         }     });      alert.setNegativeButton("Cancel", new     DialogInterface.OnClickListener() {         public void onClick(DialogInterface dialog, int whichButton) {         // Canceled.         }     });     alert.show();                    } 

Answer 1

It's probably because your input field is not single-lined.

Try adding

input.setSingleLine(); 

And you will see that pressing the action key of the keyboard will actually perform a 'done' action (i.e close the keyboard)

See http://developer.android.com/reference/android/view/inputmethod/EditorInfo.html#IME_ACTION_DONE