相关疑难解决方法(0)

在UIImageView我的子类初始化后,我有以下代码行:

self.userInteractionEnabled = true
self.addGestureRecognizer(UITapGestureRecognizer(target: self, action: "handleTap:"))

我创建了必要的相关功能:

func handleTap(gestureRecognizer: UITapGestureRecognizer) {
    print("In handler")
}

在点击有问题的视图时,"处理程序从未打印到控制台".然后我删除了处理函数,看看编译器是否会抱怨丢失的函数.它没有.

我很难过.我真的很感激任何光明人都可以放弃这一点.

更新:我的课实际上是一个UIImageView相反的UIView

我在主视图中定义了多个视图.我想为所有这些视图添加单击手势.下面是我编写的代码,但这会将轻击手势注册到我添加的最后一个视图.因此,在下面的代码中,仅messagesView针对其他视图注册而不是其他视图.我有两个问题:

1. 如何在多个视图中注册相同的tapGesture？

2. 让我们假设我得到了这个工作,现在从这些视图中的所有单击都转到相同的函数调用oneTap.在此功能中,我如何区分水龙头来自哪个视图？

码:

@synthesize feedsView, peopleView, messagesView, photosView;

- (void)viewDidLoad
{
    [super viewDidLoad];

    UITapGestureRecognizer *singleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(oneTap:)];
    [singleTap setNumberOfTapsRequired:1];
    [singleTap setNumberOfTouchesRequired:1];
    [feedsView addGestureRecognizer:singleTap];
    [peopleView addGestureRecognizer:singleTap];
    [messagesView addGestureRecognizer:singleTap];
    //[photosView addGestureRecognizer:singleTap];
    [singleTap release];

    return;
}

因为我无法使用任何框架来创建相册,所以我正在尝试使用Collection View创建自己的框架,但是我在开始时就卡住了.

我的目标是将我的Web服务中的所有图像显示到我的集合视图中,因为所有图像显示,下一步是当有人点击任何单元格时,我可以在新视图中打开它并在所有图像之间导航.

这是我创建的基本代码:

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    [collectionController reloadData];
    tapGesture = [[UITapGestureRecognizer alloc] initWithTarget:nil action:@selector(touched)];

    tapGesture.numberOfTapsRequired = 1;


}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

-(NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView{

    return 1;

}

-(NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section{

    return 6;
}

-(UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath{

    static NSString *cellIdentifier = @"Cell";

    CollectionCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:cellIdentifier forIndexPath:indexPath];
    [cell.imgCollection setImageWithURL:[NSURL URLWithString:@"http://sallescds.com.br/wp-content/uploads/2012/12/xepop-300x300.jpg"] placeholderImage:[UIImage imageNamed:@"placeholder.png"]];

    [cell.imgCollection addGestureRecognizer:tapGesture];

    return …

我有两个UI按钮,我想在两者上实现Longpressgesture.

所以我写了下面的代码..

-(void)viewdidLoad
{
 UILongPressGestureRecognizer *longPress = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(buttonLongPressed:)];
    longPress.minimumPressDuration = 0.5;
    [Button1 addGestureRecognizer:longPress];
    [Button2 addGestureRecognizer:longPress];

}

- (void)buttonLongPressed:(UILongPressGestureRecognizer *)sender
{    
    if(sender.state == UIGestureRecognizerStateBegan) 
    {        

    }   
}

现在我的疑问是如何检查哪个按钮是长按？

谢谢Ranjit

我知道已经有很多问题与此类似,但我已经尝试了所有这些问题,而且由于未能解决我的问题,我发布了我的问题.首先我尝试的问题是:

1)如何通过longPressGestureRecognizer获取button.tag？

2)UIButton长按事件

在我的应用程序UIButtons中,我的xib中有12个.长期以来,UIButton我有这种方法被调用.gesture.view.tag每次点击不同时,使用属性总是给我相同的标记(即)UIButtons.

- (IBAction)longPress:(id)sender {

     UILongPressGestureRecognizer* gesture=(UILongPressGestureRecognizer*)sender;
     NSLog(@"Tag---> %d",gesture.view.tag);
  }

我的xib看起来像这样:

更新1:

在有人与xib混淆之前,我必须说它UIButtons被设置为自定义类型,因此它们是不可见的UIImageView.

我在我的视图中设置了一个UILongPressGestureRecognizer来处理四个不同的按钮,如何在我的代码中访问哪个按钮被点击？

我的UILongPressGestureRecognizer看起来像这样:

@IBAction func editText(sender: UILongPressGestureRecognizer) {
        textFieldInput.hidden = false
        iphoneSaveCharName.hidden = false
      }

我想使用长按,以便我可以编辑按钮文本

编辑1:

import UIKit

class ViewController: UIViewController {
    @IBOutlet weak var iphoneTableView: UITableView!
    @IBOutlet weak var textFieldInput: UITextField!
    @IBOutlet weak var iphoneSaveCharName: UIButton!
    @IBOutlet weak var charOne: UILabel!
    @IBOutlet weak var charTwo: UILabel!
    @IBOutlet weak var charTree: UILabel!
    @IBOutlet weak var charFour: UILabel!
    @IBOutlet weak var test1: UIButton! //button that I am clicking on!



    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading …

我正在研究 Pan Gesture 的样本。我很想知道我可以在两个视图上添加单个手势吗？

我的代码如下：

UIPanGestureRecognizer *panGesture = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(invokePanGesture:)];
[panGesture setMinimumNumberOfTouches:1];
[panGesture setMaximumNumberOfTouches:2];

[btnGreen addGestureRecognizer:panGesture];
[btnYellow addGestureRecognizer:panGesture];

我的处理程序方法如下：

- (void)invokePanGesture:(UIPanGestureRecognizer*)recognizer {
CGPoint translation = [recognizer translationInView:self.view];
recognizer.view.center = CGPointMake(recognizer.view.center.x + translation.x, 
                                     recognizer.view.center.y + translation.y);
[recognizer setTranslation:CGPointMake(0, 0) inView:self.view];
}

现在的问题是手势识别器在我的情况下只考虑最后一个视图btnYellow作为它的视图。如果我创建两个单独的 GestureRecognizer 对象，它就可以工作。所以请让我明白：

1. 是否可以在多个视图中使用单个手势？

2. 如果是，那么如何？

3. 如果是现在，为什么？

提前致谢

所以我有以下代码:

UITapGestureRecognizer *showNewsStoryTapGestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(showNewsStory:)];
[self.storyImageView_ addGestureRecognizer:showNewsStoryTapGestureRecognizer];
[self.storyTitleLabel_ addGestureRecognizer:showNewsStoryTapGestureRecognizer];
[self.storyImageFailedLabel_ addGestureRecognizer:showNewsStoryTapGestureRecognizer];
[self.storyImageFailedTextView_ addGestureRecognizer:showNewsStoryTapGestureRecognizer];
[showNewsStoryTapGestureRecognizer release];

似乎这只适用于一个UIView,这是最后添加的一个.换句话说UITapGestureRecognizer,它的视图是一对一的关系.它是否正确？我该如何解决？我是否必须UITapGestureRecog为每个人创建一个单独的？

多个UIImageView上的TapGesture识别器无法正常工作,同时它检测到最后添加的图像视图手势..我已经这样做了,

 UITapGestureRecognizer *tapped = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(myFunction:)];
tapped.numberOfTapsRequired = 1;
tapped.delegate = self;


UIImageView *sample_book1= [[UIImageView alloc]initWithFrame:CGRectMake(70, 135, 100,125) ];
sample_book1.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@"mathematics.png"]];
sample_book1.userInteractionEnabled = YES;
sample_book1.tag = 0;
[sample_book1 addGestureRecognizer:tapped];
[self.view addSubview:sample_book1];

UIImageView *sample_book2= [[UIImageView alloc]initWithFrame:CGRectMake(220, 135, 100,125) ];
sample_book2.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@"biology.png"]];
sample_book2.userInteractionEnabled = YES;
sample_book2.tag = 1;
[sample_book2 addGestureRecognizer:tapped];
[self.view addSubview:sample_book2];

UIImageView *sample_book3= [[UIImageView alloc]initWithFrame:CGRectMake(370, 135, 100,125) ];
sample_book3.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@"chemistry.png"]];
sample_book3.userInteractionEnabled = YES;
sample_book3.tag = 2;
 [sample_book3 addGestureRecognizer:tapped];
[self.view addSubview:sample_book3]; …

我希望能够将这些线条切断:

[button0 addGestureRecognizer:longPress];
[button1 addGestureRecognizer:longPress];
[button2 addGestureRecognizer:longPress];
[button3 addGestureRecognizer:longPress];
[button4 addGestureRecognizer:longPress];
[button5 addGestureRecognizer:longPress];
[button6 addGestureRecognizer:longPress];
[button7 addGestureRecognizer:longPress];
[button8 addGestureRecognizer:longPress];
[button9 addGestureRecognizer:longPress];

等等.一路到36 !!

可能有一个循环？但我不知道该怎么做.

感谢和问候.

我在滚动视图中创建动态标签,我想为所有这些动态生成的标签添加单个手势识别器.我正在创建如下手势

UIPanGestureRecognizer *gesture = [[UIPanGestureRecognizer alloc]
                                    initWithTarget:self
                                    action:@selector(handlePan:)] ;

现在我想将此手势添加到多个标签.是否可以为动态创建的标签添加相同的手势？

我有 2 个 UIImageView 和一个 tapGestureRecognizer。

 override func viewDidLoad() {
        // Do any additional setup after loading the view.

        super.viewDidLoad()

        let tapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(cameraTapped(tapGestureRecognizer:)))

        cameraUIImageView.isUserInteractionEnabled = true
        cameraUIImageView.addGestureRecognizer(tapGestureRecognizer)

        plus1UIImageView.isUserInteractionEnabled = true
        plus1UIImageView.addGestureRecognizer(tapGestureRecognizer)
//        


    }

我只能点击第二个 UIImageView，它是 plus1UIImageView。

为什么？

我需要将 a 添加UITapGestureRecognizer到多个，UILabel并且它们都需要转到相同的函数进行处理。

我有的是这个：

@IBOutlet weak var label_something: UILabel!
let tap = UITapGestureRecognizer(target: self, action: #selector(self.myFunction))
label_something.addGestureRecognizer(tap)

在这里收到：

@objc func myFunction(sender:UITapGestureRecognizer) { // Something... }

像魅力一样工作。问题是它只适用于一个 UILabel（如果添加addGestureRecognizer(tap)到多个UIlabel它只适用于添加的最后一个）

所以我的问题是：

如何实现我想在这里做的事情？带有 tapRecognizer 的五个不同的 UILabels 具有相同的功能