toggle method
切换true/false 并发射
Implementation
bool? toggle() {
if (_subject.isClosed) {
L.w('IO在close状态下请求发送数据');
return null;
}
final toggled = !latest;
_subject.add(toggled);
return toggled;
}
切换true/false 并发射
bool? toggle() {
if (_subject.isClosed) {
L.w('IO在close状态下请求发送数据');
return null;
}
final toggled = !latest;
_subject.add(toggled);
return toggled;
}