tap

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I'm struggling with detecting a tap on a GMSPolyline drawn on my Google map, it works just fine with GMSpolygones, but the same approach doesn't seem to work with polyline. My current approach, which works for polygones, is: if (GMSGeometryContainsLocation(coordinate, polygon.path!, false)) { ... } Any suggestions how to detect taps on a polyline? Or just close to it? 回答1: According to their API documentation , GMSPolyline inherits from GMSOverlay which means a GMSPolyline has the property tappable . So you'd want something like this let

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: i have a transparent UIScrollView on top of another view. the scroll view has content - text and images, used to display info. the view behind it has some images that the user should be able to tap on. and the content over them is scrollable using the mentioned scrollview. i want to be able to normally use the scroll view (no zoom though), but when that scroll view is not actually scrolling to let the tap events through to the view behind it. using a combination of the touch and scroll events i can determine when to let the taps

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I've read in a book that the function signature of tap function (also called K-Combinator) is below: tap :: ( a -> *) -> a -> a "This function takes an input object a and a function that performs some action on a. It runs the given function with the supplied object and then returns the object." Can someone help me to explain what is the meaning of star (*) in the function signature? Are below implementation correct? If all the three implementation are correct, which one should be used when? Any examples? Implementation 1: const tap

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am following the ARCore sample ( https://github.com/google-ar/arcore-android-sdk ) and I am trying to remove object 3d (andy) already added. How can I detect if an tap event with ARCore hits an already added 3d object? 回答1: I had the same question these days, I tried 2 solutions, 1. frame.hitTest(MotionEvent) 2. project the vertex from arcore world to 2d coordinate in view At first I use 1. to get the hit pose on plane and compare to the pose of already existed 3d object, but once the 3d object left the plane this will not work. In the end

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: In Xcode 8 / Swift 3, using the coordinate(withNormalizedOffset: CGVector) function to interact with an XCUIElement appears to work only in portrait mode. To test this functionality, I created a single screen project with a button centered in the view. I then ran the following UI test: func testExample() { XCUIDevice.shared().orientation = .portrait let window = XCUIApplication().windows.element(boundBy: 0) let centerPoint = window.coordinate(withNormalizedOffset: CGVector(dx: 0.5, dy: 0.5)) centerPoint.tap() } This successfully taps the

1）TAP模式与TUN模式的区别 tap：俗称网桥模式、工作在二层 tun：俗称路由模式、工作在三层 区别如下所示： 1）tap可以直接使用route这样的路由表命令、但不能用于手机设备 2）tap一般结合路由表进行设定下一跳、而tun往往需要与iptables几何紧密来实现下一跳 3）tun可以用于手机设备、但不能使用route这样的路由表命令、同时也有很多限制、比如设置固定IP的时候 4）一个tun设备大多数时候、被用于基于IP协议的通讯、而一个tap设备允许完整的以太网帧通过openvpn隧道 ================================================================== 从上面这句话我们可以看到、实际应用还是使用tun模式较为靠谱 如果我们使用的为tap模式、则会广播大量数据包、随后带宽就会被沾满、而tun模式不会、这是两者的区别 还有一点非常重要、就是设置固定IP地址的时候、tap模式可以自由定义、但是tun模式有限制不行 如果我们采用的运行模式为tun、同时需要设置固定IP地址、那就要这样：172.16.1.1 172.16.1.2 这样固定的IP地址就是172.16.1.1、而后面的172.16.1.2据我观察、好像用于DHCP 如果后面我们需要在固定IP地址、那么1.3和1.4就不能用、只能用1.5和1.6

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I would like to make a UILabel clickable. I have tried this, but it doesn't work: class DetailViewController : UIViewController { @IBOutlet weak var tripDetails : UILabel ! override func viewDidLoad () { super . viewDidLoad () ... let tap = UITapGestureRecognizer ( target : self , action : Selector ( "tapFunction:" )) tripDetails . addGestureRecognizer ( tap ) } func tapFunction ( sender : UITapGestureRecognizer ) { print ( "tap working" ) } } 回答1: Have you tried to set userInteractionEnabled to true on the tripDetails label? This

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I'm new to SceneKit and 3D spaces in iOS. I'm currently working on a simple game that shows a cube of 28 segments ("mini cubes" if you want). I want to move the mini cubes by tapping them, but I can't get my head around how to select specific nodes (childnodes of the big cube). Can anybody help me or post a link to SceneKit tutorials for dummies? I've been looking for days now, and haven't found what I'm looking for. Cheers 回答1: You can hit test the scene view (for example from the location of a tap gesture recognizer), which will give you a