ios - 弹出 View 的坐标计算

Question

在我的应用程序中，一个按钮放置在 View Controller 的底部。单击该按钮时，我需要一个弹出 View ，其中的表格 View 显示在我放置的按钮上方。我的问题是我的弹出 View 的起始位置是我的 View Controller 的顶部。我需要在该按钮上方有一个小的弹出 View 。我使用横向模式。 .

  UIViewController *popoverContent=[[UIViewController alloc]init];
UIView* popoverView = [[UIView alloc]initWithFrame:CGRectMake( 265,   100,  400 , 800)];
popoverView.backgroundColor = [UIColor clearColor];
// popoverView.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@"mmf.png"]];


UITableView *table = [[UITableView alloc]initWithFrame:CGRectMake( 0, 0,400,800) style:UITableViewStylePlain];
table.backgroundColor=[UIColor colorWithRed:(107.0/255.0) green: (164.0/255) blue:(183.0/255) alpha:1];
[table setDataSource:self];
[table setDelegate:self];
[table setRowHeight:80];
[popoverView addSubview:table];

popoverContent.view = popoverView;
// popoverContent.contentSizeForViewInPopover =
//CGSizeMake(250, 665);


self.popoverController = [[UIPopoverController alloc]
                          initWithContentViewController:popoverContent];
[self.popoverController presentPopoverFromRect:popoverView.frame inView:self.view permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];
[self.popoverController  presentPopoverFromRect:CGRectMake( 265,680,400,800)
                                         inView:self.view permittedArrowDirections:UIPopoverArrowDirectionDown animated:YES];

我尝试了很多坐标值，但它的起始位置不是我想要的。

Answer 1

编辑

    UIViewController *popoverContent=[[UIViewController alloc]init];
    UIView* popoverView = [[UIView alloc]initWithFrame:CGRectMake( 0,   0,  400 , 400)];
    popoverView.backgroundColor = [UIColor clearColor];
    // popoverView.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@"mmf.png"]];


    UITableView *table = [[UITableView alloc]initWithFrame:CGRectMake( 0, 0,400,400) style:UITableViewStylePlain];
    table.backgroundColor=[UIColor colorWithRed:(107.0/255.0) green: (164.0/255) blue:(183.0/255) alpha:1];
    [table setRowHeight:80];
    [popoverView addSubview:table];

    popoverContent.view = popoverView;
    popoverContent.contentSizeForViewInPopover = CGSizeMake(popoverView.frame.size.width, popoverView.frame.size.width);

    UIPopoverController *popoverController = [[UIPopoverController alloc]
                                              initWithContentViewController:popoverContent];
    [popoverController  presentPopoverFromRect:btnLogin.frame
                                        inView:btnLogin.superview permittedArrowDirections:UIPopoverArrowDirectionDown animated:YES];

注意您只需确保 按钮的框架 并确保从包含按钮的 View 呈现