iphone - 如何在iphone应用程序中单击按钮时隐藏删除子视图

Question

我有 iphone 应用程序，在其中我将 subView 添加到窗口它工作正常，但我希望当我按下关闭按钮时它应该隐藏 subView 这里是我为创建 subView 所做的代码

 UIView*subView=[[UIView alloc]initWithFrame:CGRectMake(0,0, 1024,768)];
 subView.backgroundColor=[UIColor colorWithPatternImage:[UIImage imageNamed:@"bgPopupback.png"]];
 UIWindow* window = [UIApplication sharedApplication].keyWindow;
 if (!window) 
    window = [[UIApplication sharedApplication].windows objectAtIndex:0];
 [[[window subviews] objectAtIndex:0] addSubview:subView];  

关闭按钮操作

   -(void)closeButtonAction{



   NSLog(@"CLicked on this button");

  [subView removeFromSuperview] ; 

  self.tableView.userInteractionEnabled=TRUE;

  }

Answer 1

您可以删除您的subView使用removeFromSuperview，如果您只想隐藏您的子视图，则意味着subView.hidden = YES;在您的按钮操作中使用

Answer 2

删除您的视图

[yourView removeFromSuperview];  

隐藏您的视图

[yourView setHidden:YES];

Answer 3

如果您只是想隐藏您的子视图，那么在您的 -(void)closeButtonAction 方法中这样做

-(void)closeButtonAction{



   NSLog(@"CLicked on this button");

  //[subView removeFromSuperview] ; 

  subView.alpha = 0;

  self.tableView.userInteractionEnabled=TRUE;

  }

Answer 4

viewDidLoad()
{
UIButton *m_btnSample = [UIButton buttonWithType:UIButtonTypeCustom];
    [m_btnSample setFrame:CGRectMake(200, 300, 200, 40)];
    [m_btnSample setImage:[UIImage imageNamed:@"smiley1.jpg"] forState:UIControlStateNormal];
    [m_btnSample addTarget:self action:@selector(btnChanged) forControlEvents:UIControlStateHighlighted];
    [self.view addSubview:m_btnSample];
}

 -(void)btnChanged
    {
        [viewYouWantToRemove removeFromSuperview];

    }