setOnReconnectStart method
重连开始回调
Implementation
void setOnReconnectStart(OnLivePusherCallback onReconnectStart) {
  this.onReconnectStart = onReconnectStart;
}重连开始回调
void setOnReconnectStart(OnLivePusherCallback onReconnectStart) {
  this.onReconnectStart = onReconnectStart;
}