decodeWidgetStatePropertyIcon static method
WidgetStateProperty<Icon?> ?
decodeWidgetStatePropertyIcon(
- dynamic value, {
- bool validate = true,
Decodes a value
into a Icon based WidgetStateProperty. This
accepts a Icon or a String which will be resolved for all states.
Alternatively, if the value
is a Map then this expects the following
format:
{
"disabled": "<Icon>",
"dragged": "<Icon>",
"empty": "<Icon>",
"error": "<Icon>",
"focused": "<Icon>",
"hovered": "<Icon>",
"pressed": "<Icon>",
"scrolledUnder": "<Icon>",
"selected": "<Icon>"
}
See also:
Implementation
static WidgetStateProperty<Icon?>? decodeWidgetStatePropertyIcon(
dynamic value, {
bool validate = true,
}) {
WidgetStateProperty<Icon?>? result;
if (value is WidgetStateProperty<Icon?>) {
result = value;
} else if (value != null) {
if (value is Icon) {
result = WidgetStateProperty.all<Icon?>(value);
} else if (value is IconData) {
result = WidgetStateProperty.all<Icon?>(Icon(value));
} else if (value is Map) {
assert(SchemaValidator.validate(
schemaId: '$_baseSchemaUrl/widget_state_property_icon',
value: value,
validate: validate,
));
result = MapWidgetStateProperty.resolveWith((states) {
Icon? result;
if (states.contains(WidgetState.disabled)) {
result = decodeIcon(
value['disabled'],
validate: false,
);
} else if (states.contains(WidgetState.dragged)) {
result = decodeIcon(
value['dragged'],
validate: false,
);
} else if (states.contains(WidgetState.error)) {
result = decodeIcon(
value['error'],
validate: false,
);
} else if (states.contains(WidgetState.focused)) {
result = decodeIcon(
value['focused'],
validate: false,
);
} else if (states.contains(WidgetState.pressed)) {
result = decodeIcon(
value['pressed'],
validate: false,
);
} else if (states.contains(WidgetState.hovered)) {
result = decodeIcon(
value['hovered'],
validate: false,
);
} else if (states.contains(WidgetState.scrolledUnder)) {
result = decodeIcon(
value['scrolledUnder'],
validate: false,
);
} else if (states.contains(WidgetState.selected)) {
result = decodeIcon(
value['selected'],
validate: false,
);
} else {
result = decodeIcon(
value['empty'],
validate: false,
);
}
return result;
});
} else {
result = WidgetStateProperty.all<Icon?>(value);
}
}
return result;
}