MJRefresh下拉刷新修改默认箭头和菊花颜色

MJRefreshNormalHeader *header = [MJRefreshNormalHeader headerWithRefreshingTarget:self refreshingAction:@selector(loadNewData)];

    header.lastUpdatedTimeLabel.hidden = YES;

    header.stateLabel.hidden=YES;

    header.arrowView.image=IMG(@"向下箭头");

    header.loadingView.color=kWhiteColor;

    self.tableView.mj_header = header;