ios 13 模态跳转(presentViewControlle

在A页面模态弹出B页面,B页面设置modalPresentationStyle属性即可全屏显示.

- (void)BtnClick{

   BViewController * VC = [[BViewController alloc]init];

    //隐藏tabbar

    VC.hidesBottomBarWhenPushed =YES;

    /*防止弹出界面不能占满屏幕*/

    VC.modalPresentationStyle = UIModalPresentationFullScreen;

    [self presentViewController:VC animated:YES completion:nil];

}