Yes, to some extent, China is still on lockdown, although it has lifted the ban on some of its travel restrictions. Some cities have even ceased the lockdown altogether, encouraging their people to go back to work.
Travel restrictions are still in place for some and also for those that are not people returning from traveling. They are expected to quarantine themselves for fourteen days. China closed down its international flights lately due to more cases found in people arriving from other countries.
Recently, people were permitted to leave if they provided a government-sanctioned phone app which confirms a spotless bill of health and that they have not been in contact with anyone who has the virus. China was the first country to enforce social distancing, and as such, China serves as an example for the rest of the nations.