当用户点击iPhone屏幕的任何部分时，如何解释以编程方式创建的UIView

Question

我正在开发一个以编程方式创建弹出视图的应用。现在要求是当用户点击除popview之外的其他地方时，我想从superview中删除该视图。

以下是我创建视图的代码

- (IBAction)Morebtn:(id)sender {
    UIView *cv = [[UIView alloc]initWithFrame:CGRectMake(200, 60, 100, 80)];
   UIButton *label1 = [[UIButton alloc]initWithFrame:CGRectMake(-50,2, 200, 30)];
    [label1 setTitle: @"My Button" forState: UIControlStateNormal];
    label1.titleLabel.font=[UIFont fontWithName:@"SegoeUI" size:12.0];
    [label1 addTarget:self action:@selector(buttonClicked:) forControlEvents:UIControlEventTouchUpInside];

    [cv addSubview:label1];

    UILabel *label2 = [[UILabel alloc]initWithFrame:CGRectMake(5,20, 200, 30)];
    label2.text = @"Mark as unread";
    label2.font=[UIFont fontWithName:@"SegoeUI" size:12.0];
    [cv addSubview:label2]; //add label2 to your custom view

    [cv setBackgroundColor:[UIColor grayColor]];
    [self.view addSubview:cv];
}

这是我的截屏视图

Answer 1

在全局

中声明UIView *cv

和Remove功能就像

一样

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
[cv setHidden:YES];
[self.view.superview endEditing:YES];
}

选择否2

@property (strong, nonatomic) UIView * cv;

 -(void)viewDidLoad
{
[super viewDidLoad];

// here add the view

 cv = [[UIView alloc]initWithFrame:CGRectMake(200, 60, 100, 80)];
UIButton *label1 = [[UIButton alloc]initWithFrame:CGRectMake(-50,2, 200, 30)];
[label1 setTitle: @"My Button" forState: UIControlStateNormal];
label1.titleLabel.font=[UIFont fontWithName:@"SegoeUI" size:12.0];
[label1 addTarget:self action:@selector(buttonClicked:) forControlEvents:UIControlEventTouchUpInside];

[cv addSubview:label1];

UILabel *label2 = [[UILabel alloc]initWithFrame:CGRectMake(5,20, 200, 30)];
label2.text = @"Mark as unread";
label2.font=[UIFont fontWithName:@"SegoeUI" size:12.0];
[cv addSubview:label2]; //add label2 to your custom view

[cv setBackgroundColor:[UIColor grayColor]];

}

按钮操作

- (IBAction)Morebtn:(id)sender {

   [self.view addSubview:cv];

}

Answer 2

100％

 - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{

        [super touchesBegan:touches withEvent:event];
        [urView removeFromSuperview];
    }

Answer 3

试试这个

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{ 
CGPoint locationPoint = [[touches anyObject] locationInView:self.view];

UIView* viewYouWishToObtain = [self hitTest:locationPoint withEvent:event];
 if ([viewYouWishToObtain isKindOfClass: [customView Class]])
    [customView removeFromSuperview];
 }

Answer 4

希望这会对你有帮助..

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{

[cv removeFromSuperView];

//或

[cv setHidden:Yes];
}

Answer 5

非常简单，只需在自己的UIViewController中创建一个方法。 touchesBegan并写入一个方法。 但在此之前，你的对象cv在你的视图中是全局的

-(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event
{

    [self.cv removeFromSuperview];
     self.cv=nil;
}