[self.tableView mas_makeConstraints:^(MASConstraintMaker *make) {
    make.top.left.right.bottom.mas_offset(0);
}];

當(dāng)iOS11的時(shí)候

//適配X
 if (@available(iOS 11.0, *)) {
    self.tableView.contentInsetAdjustmentBehavior = UIScrollViewContentInsetAdjustmentAutomatic;
 } else {
     self.automaticallyAdjustsScrollViewInsets = NO;
 }

這里特別要注意的是，使用UIScrollViewContentInsetAdjustmentAutomatic，而不是`UIScrollViewContentInsetAdjustmentNever，否則的話底部會(huì)出現(xiàn)遮擋的問(wèn)題。