Flutter show Cancel-Button on CupertinoSearchTextField - flutter

Question

I am using the CupertinoSearchTextField in my app. It is working fine so far but I am missing one feature: the Cancel-Button.
In native iOS you can set to show the button which looks like this:
Does Flutter provide this functionality? I couldn't find it anywhere.
Clarification:
I don't mean the x/clear-button. I know that is build-in. What I mean is the actual Cancel-button which removes focus from the textField.

Answer 1

use Typeahead package.then in suffixIcon, you can add cancel feature to clear field.
TypeAheadField<String>(
hideOnEmpty: true,
minCharsForSuggestions: 2,
getImmediateSuggestions: true,
textFieldConfiguration: TextFieldConfiguration(
controller: cont_search,
cursorColor: Colors.grey,
textInputAction: TextInputAction.search,
decoration: InputDecoration(
//here the cancel button
suffixIcon: IconButton(
padding: EdgeInsets.fromLTRB(8, 4, 8, 8),
icon: Icon(Icons.clear),
onPressed: (){
cont_search.clear();
},
),
focusColor: Colors.black,
focusedBorder: InputBorder.none,
border: InputBorder.none,
//hintText: 'What are you looking for?',
icon: Icon(Icons.search),
),
onSubmitted: (value){
print("value taken is ${value}");
Navigator.of(context).push(MaterialPageRoute(
builder: (context) => search_page(value)
));
}
),
suggestionsCallback: (String pattern) async {
return matches
.where((item) =>
item.toLowerCase().startsWith(pattern.toLowerCase()))
.toList();
},
itemBuilder: (context, String suggestion) {
return ListTile(
title: Text(suggestion),
);
},
onSuggestionSelected: (String suggestion) {
//push to page
Navigator.of(context).pushReplacement(MaterialPageRoute(
builder: (context) => search_page(suggestion)
));
print("Suggestion selected ${suggestion}");
},
)

Answer 2

If you wanna override x/clear-button's behaviour to unfocus the textfield, use this. Otherwise, you can put search textfield and a clear button in a row and implement button's behaviour like this. Problem solved.
onSuffixTap: (){
FocusScope.of(context).unfocus();
}

Answer 3

I ended up building it myself. I made use of the Focus-Widget and most important the AnimatedPadding. My code looks like this:
Row(
children: [
Flexible(
child: AnimatedPadding(
duration: const Duration(milliseconds: 100),
padding: EdgeInsets.only(right: _isSearching ? 50 : 0),
child: Focus(
onFocusChange: (hasFocus) {
setState(() {
_isSearching = hasFocus;
});
},
child: CupertinoSearchTextField(
placeholder: 'Suche'.tr,
controller: _textEditingController,
focusNode: _focusNode,
),
),
),
),
if (_isSearching)
Tappable(onTap: () {
dismissKeyboard();
}, builder: (context, isTapped) {
return AnimatedText(
text: 'Abbrechen',
isTapped: isTapped,
style: AppTextStyles.avenirNextH4Regular,
color: grey,
);
}),
],
),