decodeTextDirection static method
Decodes the value
to a TextDirection. Supported values are:
ltr
rtl
Implementation
static TextDirection? decodeTextDirection(
dynamic value, {
bool validate = true,
}) {
TextDirection? result;
if (value is TextDirection) {
result = value;
} else {
_checkSupported(
'TextDirection',
[
'ltr',
'rtl',
],
value,
);
if (value != null) {
assert(SchemaValidator.validate(
schemaId: '$_baseSchemaUrl/text_direction',
value: value,
validate: validate,
));
switch (value) {
case 'ltr':
result = TextDirection.ltr;
break;
case 'rtl':
result = TextDirection.rtl;
break;
}
}
}
return result;
}