Codename one create a PIN constraint-CodePudding

Am creating a form with some Text inputs where a user can update their PIN, so i need the inputs to be only numeric and also kind a password- masked. I've tried this here but it only makes the input masked and accepts even characters,

TextComponent currentPIN = new TextComponent().labelAndHint("Current Pin").constraint(TextArea.NUMERIC).constraint(TextArea.PASSWORD);
        TextComponent newPIN = new TextComponent().labelAndHint("New PIN").constraint(TextArea.NUMERIC).constraint(TextArea.PASSWORD);
        TextComponent confirmPIN = new TextComponent().labelAndHint("Confirm PIN").constraint(TextArea.NUMERIC).constraint(TextArea.PASSWORD);

how can I achieve this, I want the input to accept only PIN, that's numeric and be masked.

CodePudding user response：

You cannot chain calls to constraint() that way and have them add up.

From the Javadoc (my emphasis):

public void setConstraint(int constraint)
Sets the constraint which provides a hint to the virtual keyboard input, notice this doesn't limit input type in any way!

Parameters: constraint - one of ANY, EMAILADDR, NUMERIC, PHONENUMBER, URL, DECIMAL it can be bitwised or'd with one of PASSWORD, UNEDITABLE, SENSITIVE, NON_PREDICTIVE, INITIAL_CAPS_SENTENCE, INITIAL_CAPS_WORD. E.g. ANY | PASSWORD.

The proper form is

...constraint(TextArea.NUMERIC | TextArea.PASSWORD)