标签：final contex code 监听 pre ted return val list
ValueListenableBuilder<TextEditingValue>( valueListenable:volumeController, builder: (context, value, child) { final result = value.text.length == 0 ? ‘0‘ : value.text; return Text(result); }, )
使用ValueListenableBuilder监听TextEditingController
标签：final contex code 监听 pre ted return val list
原文地址：https://www.cnblogs.com/ashamp/p/13198375.html
