Other platforms have a facility for specifying prompt text to appear
in a text entry box, but I don't see an Android way to do it (though
I'm no expert). You could easily fake it, though, by making the
background of the EditText transparent and placing a TextView behind
it containing the prompt text. Clear the prompt text with the first
keystroke in the EditText.
On Oct 13, 4:43 pm, chcat <vlyamt...@gmail.com> wrote:
> Hi all,
> I am trying to implement simple user input validation in EditText,
> something like
>
> setText("type your password:")
> ...
> if ( user input != "secretword")
>
> setText("incorrect, try again: ")
>
> So i am using "onTextChanged" to validate keyboard input, but how can
> i set the text without going to infinite loop?
> Thank you,
> -V
>
> EditText tv = new EditText(this);
> tv.setText("type password >>");
> tv.addTextChangedListener(new TextWatcher() {
> public void afterTextChanged(Editable s) {
> //XXX do something
> }
> public void beforeTextChanged(CharSequence s, int start, int
> count,
> int after) {
> Log.w("before text changed: ", s.toString());
> }
> public void onTextChanged(CharSequence s, int start, int
> before, int count) {
> //validate here and do what?
>
> }
>
> });
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