flutter 输入框2024-01-03

class HQConfirmExchangeInfoSection extends StatefulWidget {
  final Function(String? results)? callBack;

  const HQConfirmExchangeInfoSection({super.key, this.callBack});

  @override
  HQConfirmExchangeInfoSectionState createState() =>
      HQConfirmExchangeInfoSectionState();
}

class HQConfirmExchangeInfoSectionState
    extends State<HQConfirmExchangeInfoSection> {
  final TextEditingController _phoneController = TextEditingController();

  Function(String? results)? get callBack {
    return widget.callBack;
  }

  @override
  Widget build(BuildContext context) {
    // TODO: implement build
    return Container(
      height: 76,
      margin: const EdgeInsets.only(left: 16, right: 16, top: 8, bottom: 8),
      padding: const EdgeInsets.only(left: 16, right: 0),
      color: Colors.white,
      child: Row(
        mainAxisAlignment: MainAxisAlignment.spaceBetween,
        children: [
          const Text(
            '手机号码',
            style: TextStyle(color: Color(0xFF2A2C34), fontSize: 15),
          ),
          const SizedBox(
            width: 10,
          ),
          Expanded(
            child: TextField(
              controller: _phoneController,
              style: const TextStyle(color: Color(0xff2A2C34), fontSize: 14),
              decoration: InputDecoration(
                hintText: '请输入兑换卡券手机号码',
                hintStyle: TextStyle(
                  color: const Color(0xFF2A2C34).withOpacity(0.2),
                  fontSize: 14,
                ),
                focusedBorder: InputBorder.none,
                border:InputBorder.none,
              ),
              onChanged: (text) {
                if (callBack != null) {
                  callBack!(text);
                }
              },
            ),
          ),
          TextButton(onPressed: (){
/// 失去焦点
            FocusScope.of(context).unfocus();
          }, style: TextButton.styleFrom(
            padding: EdgeInsets.zero,

          ), child: const Text('完成', style: TextStyle(color: Color(0xff3A6EE9), fontSize: 16),)),
        ],
      ),
    );
    throw UnimplementedError();
  }
}