UITapGestureRecognizer *tapGesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapTapTap:)];
[self.view1 addGestureRecognizer:tapGesture];
[self.view2 addGestureRecognizer:tapGesture];
[tapGesture release];
在上面的代码中，只能识别view2上的点击。如果我注释掉第三行，那么点击view1会被识别。如果我是对的，你只能使用手势识别器一次，我不确定这是一个错误还是它只是需要一些更多的文档。
当前回答
你可以用这段代码我的视图，也就是xib中的imageviews。
- (void)viewDidLoad
{
firstIV.tag = 501;
secondIV.tag = 502;
thirdIV.tag = 503;
forthIV.tag = 504;
[self addTapGesturetoImageView: firstIV];
[self addTapGesturetoImageView: secondIV];
[self addTapGesturetoImageView: thirdIV];
[self addTapGesturetoImageView: forthIV];
}
-(void)addTapGesturetoImageView:(UIImageView*)iv
{
iv.userInteractionEnabled = YES;
UITapGestureRecognizer * textfielBGIVTapGasture = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(textfielBGIVTapped:)];
textfielBGIVTapGasture.numberOfTapsRequired = 1;
[iv addGestureRecognizer:textfielBGIVTapGasture];
}
- (void)textfielBGIVTapped:(UITapGestureRecognizer *)recognizer {
int tag = recognizer.view.tag-500;
switch (tag) {
case 1:
{
//firstIV tapped;
break;
}
case 2:
{
//secondIV tapped;
break;
}
case 3:
{
//thirdIV tapped;
break;
}
case 4:
{
//forthIV tapped;
break;
}
default: {
break;
}
}
}
其他回答
你可以用这段代码我的视图，也就是xib中的imageviews。
- (void)viewDidLoad
{
firstIV.tag = 501;
secondIV.tag = 502;
thirdIV.tag = 503;
forthIV.tag = 504;
[self addTapGesturetoImageView: firstIV];
[self addTapGesturetoImageView: secondIV];
[self addTapGesturetoImageView: thirdIV];
[self addTapGesturetoImageView: forthIV];
}
-(void)addTapGesturetoImageView:(UIImageView*)iv
{
iv.userInteractionEnabled = YES;
UITapGestureRecognizer * textfielBGIVTapGasture = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(textfielBGIVTapped:)];
textfielBGIVTapGasture.numberOfTapsRequired = 1;
[iv addGestureRecognizer:textfielBGIVTapGasture];
}
- (void)textfielBGIVTapped:(UITapGestureRecognizer *)recognizer {
int tag = recognizer.view.tag-500;
switch (tag) {
case 1:
{
//firstIV tapped;
break;
}
case 2:
{
//secondIV tapped;
break;
}
case 3:
{
//thirdIV tapped;
break;
}
case 4:
{
//forthIV tapped;
break;
}
default: {
break;
}
}
}
我知道这是一个旧帖子，但我认为类似的东西，希望它对其他人有用。我简单地将我的imageViews存储在一个数组中，并将其分配给一个函数中的相同手势识别器来设置每个图像视图。
在我的viewDidLoad():
imageViewList = [imageView, imageView2, imageView3]
setupImageViews(imageViews: imageViewList)
设置图像视图的函数:
func setupImageViews(imageViews: [UIImageView]) {
for imageView in imageViews {
let tapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(imageTapped(tapGestureRecognizer:)))
imageView.isUserInteractionEnabled = true
imageView.addGestureRecognizer(tapGestureRecognizer)
//set up image to be displayed with the right aspect
imageView.autoresizingMask = [.flexibleWidth, .flexibleHeight, .flexibleBottomMargin, .flexibleRightMargin, .flexibleLeftMargin, .flexibleTopMargin]
imageView.contentMode = .scaleAspectFit // OR .scaleAspectFill
imageView.clipsToBounds = true
}
}
在动作选择器imagetapping()中，您可以为所选中的任何图像视图设置相应的代码。
@objc func imageTapped(tapGestureRecognizer: UITapGestureRecognizer)
{
switch tapGestureRecognizer.view {
case imageView:
print("tapped Image View 1") //add your actions here
case imageView2:
print("tapped Image View 2") //add your actions here
case imageView3:
print("tapped Image View 3") //add your actions here
default:
print("Tap not detected")
}
_ = tapGestureRecognizer.view as! UIImageView
//additional code...
}
UIGestureRecognizer用于单个视图。我同意文件是参差不齐的。UIGestureRecognizer只有一个视图属性，会泄露信息:
视图 手势识别器附加到的视图。(只读) @property(非原子，只读)UIView *view 你附加(或添加)一个手势识别器到一个UIView对象 使用addGestureRecognizer: 方法。
对于Swift 3，如果有人需要这个: 基于Bhavik Rathod的回答。
func setGestureRecognizer() -> UIPanGestureRecognizer {
var panRecognizer = UIPanGestureRecognizer()
panRecognizer = UIPanGestureRecognizer (target: self, action: #selector(pan(panGesture:)))
panRecognizer.minimumNumberOfTouches = 1
panRecognizer.maximumNumberOfTouches = 1
return panRecognizer
}
///set the recognize in multiple views
view1.addGestureRecognizer(setGestureRecognizer())
view2.addGestureRecognizer(setGestureRecognizer())
如果你有固定的视角，我建议你这样做
[self.view1 addGestureRecognizer:[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapTapTap:)]];
[self.view2 addGestureRecognizer:[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapTapTap:)]];
这样可以减少多个不同的无用变量
