Set group join verification

Set the verification mode in GroupInfo.needVerification, then call setGroupInfo(). Use one of the GroupVerification constants: APPLY_NEED_VERIFICATION_INVITE_DIRECTLY, ALL_NEED_VERIFICATION, or DIRECTLY.

GroupInfo update = new GroupInfo();
update.setGroupID(groupID);
update.setNeedVerification(GroupVerification.ALL_NEED_VERIFICATION);

OpenIMClient.getInstance().groupManager.setGroupInfo(update, new OnBase<String>() {
    @Override public void onSuccess(String data) { /* The request completed. */ }
    @Override public void onError(int code, String error) { /* code and error describe the failure. */ }
});

This setting applies to subsequent join requests. It does not accept or reject existing applications.

A successful callback means that the setting request completed; it does not mean that every client has updated its UI. onGroupInfoChanged provides the updated GroupInfo. Merge the verification setting by groupID. See Group overview for the complete listener setup.