Get state and info

Normally you can get state and info on DownloadListener.

1. Get download state beyond listener

Status status = StatusUtil.getStatus(task)

status = StatusUtil.getStatus(url, parentPath, null);
status = StatusUtil.getStatus(url, parentPath, filename);

boolean isCompleted = StatusUtil.isCompleted(task);
isCompleted = StatusUtil.isCompleted(url, parentPath, null);
isCompleted = StatusUtil.isCompleted(url, parentPath, filename);

Status completedOrUnknown = StatusUtil.isCompletedOrUnknown(task);

// If you set tag, so just get tag
task.getTag();
task.getTag(xxx);

2. Get BreakpointInfo beyond listener

BreakpointInfo info = OkDownload.with().breakpointStore().get(it);

info = StatusUtil.getCurrentInfo(url, parentPath, null);
info = StatusUtil.getCurrentInfo(url, parentPath, filename);