start static method
Start the background-fetch API.
Your callback
Function provided to configure will be executed each time a background-fetch event occurs. NOTE the configure method automatically calls start. You do not have to call this method after you first configure the plugin.
Implementation
static Future<int> start() {
Completer completer = Completer<int>();
_methodChannel.invokeMethod('start').then((dynamic status) {
completer.complete(status);
}).catchError((dynamic e) {
var message = "Unknown error";
if (e.details != null) {
message = e.details.toString();
}
completer.completeError(message);
});
return completer.future as Future<int>;
}