Setting text value based on slider value - dart

Question

Setting a text element based on slider value
I am trying to set a text element to a description of an emoji that is set by a slider. I have 5 different emojis set on a slider so the values are 0-4 since the list of emojis is an array. The text is not updating corrctly based on the code I have currently.
const _emojis = ['😃','\u{1F928}','\u{1F610}','\u{1F612}','😞'];
child: Slider(
value: _value,
// label: _emojis[_value.toInt()],
min: 0.0,
max: 4.0,
divisions: 4,
onChangeStart: (double value) {
print('Start value is ' + value.toString());
},
onChangeEnd: (double value) {
print('Finish value is ' + value.toString());
if(value.toString() == '0.0'){
return _emotionalStatus = 'Happy';
}
if(value.toString() == '1.0'){
return _emotionalStatus = 'Optimistic';
}
if(value.toString() == '2.0'){
return _emotionalStatus = 'Neutral';
}
if(value.toString() == '3.0'){
return _emotionalStatus = 'Pessimistic';
}
if(value.toString() == '4.0'){
return _emotionalStatus = 'Sad';
}
},
onChanged: (double value) {
setState(() {
_value = value;
});
},
activeColor: Colors.white,
inactiveColor: Colors.white,
),

Answer 1

Change your onChangeEnd method , you don't need a return value, just call to setState after your conditions:
onChangeEnd: (double value) {
print('Finish value is ' + value.toString());
if (value.toString() == '0.0') {
_emotionalStatus = 'Happy';
}
if (value.toString() == '1.0') {
_emotionalStatus = 'Optimistic';
}
if (value.toString() == '2.0') {
_emotionalStatus = 'Neutral';
}
if (value.toString() == '3.0') {
_emotionalStatus = 'Pessimistic';
}
if (value.toString() == '4.0') {
_emotionalStatus = 'Sad';
}
setState(() {
});
},