Question

我在Buttom有一个Uibutton。当用户点击该按钮时，uiview动画显示为从buttom到up的弹出窗口。这是我的代码

-(void)viewDidLoad 
{
    [super viewDidLoad];    
    self.BuyButtonPopUpView.frame = CGRectMake(self.BuyButtonPopUpView.frame.origin.x, 1000, self.BuyButtonPopUpView.frame.size.width,self.BuyButtonPopUpView.frame.size.height);    
}

- (IBAction)animated:(id)sender
{
    if(_isAnimated)
    {
        [UIView animateWithDuration:0.3
                          delay:0.0
                        options: UIViewAnimationOptionCurveEaseIn
                     animations:^{
                         self.BuyButtonPopUpView.frame = CGRectMake(self.BuyButtonPopUpView.frame.origin.x, 520, self.BuyButtonPopUpView.frame.size.width,self.BuyButtonPopUpView.frame.size.height);
                     }
                     completion:^(BOOL finished){
                     }];
       _isAnimated=NO;  
    }
    else
    {   
        [UIView animateWithDuration:0.3
                          delay:0.0
                        options: UIViewAnimationOptionCurveEaseIn
                     animations:^{
                         self.BuyButtonPopUpView.frame = CGRectMake(self.BuyButtonPopUpView.frame.origin.x, 1000, self.BuyButtonPopUpView.frame.size.width,self.BuyButtonPopUpView.frame.size.height);
                     }
                     completion:^(BOOL finished)
                     {

       }];
      _isAnimated=YES;
    }
}

Uiview动画完美无缺，但是当uiview出现时，背景视图会像uiactionsheet一样创建阴影（或模糊），并且在完成动画背景视图后很清楚。我不知道如何实施。请帮助我我是ios的新人...

Answer 1

您可以在后台添加UIView，并在故事板中设置其backgroundcolor黑色和alpha 0.5。然后使用动画将其alpha从0.5更改为0。您还可以添加UITapGestureRecognizer来检测其上的点击，并在用户点击外部时关闭该视图。

-(void)viewDidLoad 
{
    [super viewDidLoad];    
    self.BuyButtonPopUpView.frame = CGRectMake(self.BuyButtonPopUpView.frame.origin.x, 1000,     self.BuyButtonPopUpView.frame.size.width,self.BuyButtonPopUpView.frame.size.height);    
}

- (IBAction)animated:(id)sender
{
    if(_isAnimated)
    {
        [UIView animateWithDuration:0.3
                      delay:0.0
                    options: UIViewAnimationOptionCurveEaseIn
                 animations:^{
                     self.BuyButtonPopUpView.frame = CGRectMake(self.BuyButtonPopUpView.frame.origin.x, 520, self.BuyButtonPopUpView.frame.size.width,self.BuyButtonPopUpView.frame.size.height);
                     //showing background view here
                     self.viewBackground.alpha = 0.5;
                 }
                 completion:^(BOOL finished){
                 }];
        _isAnimated=NO;  
    }    
    else
    {   
         [UIView animateWithDuration:0.3
                      delay:0.0
                    options: UIViewAnimationOptionCurveEaseIn
                 animations:^{
                     self.BuyButtonPopUpView.frame = CGRectMake(self.BuyButtonPopUpView.frame.origin.x, 1000, self.BuyButtonPopUpView.frame.size.width,self.BuyButtonPopUpView.frame.size.height);
                     //dismissing background view here
                     self.viewBackground.alpha = 0.0;
                 }
                 completion:^(BOOL finished)
                 {

                 }];
         _isAnimated=YES;
    }
}

用于检测外部的水龙头并取消您的观点：

创建UITapGestureRecognizer：

@interface ViewController ()
{
    UITapGestureRecognizer *tapGesture;
}

在ViewDidLoad中初始化：

-(void)viewDidLoad 
{
    //defining your gesture method
    tapGestureRecognizer = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(handleSingleTapGesture:)];

    //adding gesture recognizer on the background view
    [self.backgroundView addGestureRecognizer:tapGestureRecognizer];
}

在您的手势识别器方法中：

-(void)handleSingleTapGesture:(UITapGestureRecognizer *)tapGestureRecognizer
{
       [UIView animateWithDuration:0.3 
             animations:^{
                 //dismissing background view here
                 self.viewBackground.alpha = 0.0;
             }
             completion:^(BOOL finished){
             }];
}

希望这有帮助。

Answer 2

在viewdidload.add QuartzCore框架中添加你的代码

class2.java

static
{
UMRMetadataSupportDAOImpl d=new UMRMetadataSupportDAOImpl();
    listDocuments= d.getDocumentationList(); //error here
    for (UMRDocumentationDTO listDoc: listDocuments)
    {
        if(listDoc.equals(MMTConstantsInt.DOMAIN_NAME))
            domainDocumentationMap.put(listDoc.getId().getObjectName(), listDoc.getDocumentationLink());
        else
            domainComboDocumentationMap.put(listDoc.getId().getObjectName(), listDoc.getDocumentationLink());
    }

Answer 3

您可以先添加UIVisualEffectView，然后在此视图上添加弹出窗口。

这是一个教程链接https://www.raywenderlich.com/84043/ios-8-visual-effects-tutorial

用户单击UI按钮时创建阴影（或模糊）？

3 个答案: