remove subview of uiwindow?

问题

i want to remove a view from uiwindow,so i nslog in appdelegate method,it says window's subviews count as two NSLog(@" %d",[[self.window subviews] count]); so how can i remove that subviews from window,if i remove that subviews i have tab bar controller to be continued...

- (void) GetUserCompleted

{
    NSLog(@"   %@",[[self.window subviews] objectAtIndex:0]);   
    NSLog(@"   %@",[[self.window subviews] objectAtIndex:1]); 
}

回答1:

You can remove the a single subview using the following code.

[subview_Name removeFromSuperview];

if you want to remove all subviews form the view then use this.

NSArray *subViewArray = [self.window subviews];
for (id obj in subViewArray)
{
    [obj removeFromSuperview];
}

回答2:

Hope the below code will be useful for remove particular view

   Set tag for that remove view

   subview.tag = 1;

   then

   [[[self window] viewWithTag:1] removeFromSuperview];

回答3:

Swift version of @Maddy 's answer:

//create view then add a tag to it. The tag references the view
var myNewView = UIView()
myNewView.tag = 100

//add the  view you just created to the window
window.addSubview(myNewView)

//remove the view you just created from the window. Use the same tag reference
window.viewWithTag(100)?.removeFromSuperview

来源：https://stackoverflow.com/questions/14997175/remove-subview-of-uiwindow