loadWithBandWidth method
开始加载文件 + bandwidth
Implementation
void loadWithBandWidth(String url, int duration, int? bandWidth) async {
var map = {"url": url, "duration": "${duration}"};
if (null != bandWidth) {
map = {"url": url, "duration": "${duration}", "bandWidth": "$bandWidth}"};
}
await methodChannel.invokeMethod("load", map);
}