notify.push(String title, String content) // INFO, 3s
notify.push(String title, String content, long durationMs)
notify.push(String title, String content, String type, long durationMs)
notify.info(String title, String content)
notify.warn(String title, String content)
notify.alert(String title, String content)
type："INFO" / "WARNING" / "ALERT"（大小写不敏感）。