listen<T> method
bool
listen<T>(
- FlEventListenData onData, {
- FlEventListenError? onError,
- FlEventListenDone? onDone,
- bool? cancelOnError,
添加消息流监听
Implementation
bool listen<T>(FlEventListenData onData,
{FlEventListenError? onError,
FlEventListenDone? onDone,
bool? cancelOnError}) {
if (_supportPlatform && _stream != null && _streamSubscription == null) {
try {
_streamSubscription = _stream!.listen(onData,
onError: onError, onDone: onDone, cancelOnError: cancelOnError);
return true;
} catch (e) {
debugPrint(e.toString());
}
}
return false;
}