Step 1: Find the target. Find the final recipient of the touch event in the iOS view hierarchy;Step 2: Incident response. Handle touch events based on the iOS responder chain (Responder Chain)Looking for a targetThe two major weapons used in the search for target phase are UIView's hittest:withevent: and pointinside:withevent: Methods. The process of finding a target is also known as hit-testing. Let's take
invocation of the point value of each pass is a virtual transition. Position in the corresponding view coordinate system.
What needs to be explained is the uiinterfaceenable of the view and the presence of gesture recognize images of the process. If the uiinterfaceenable is no, and the canceltouchinview of the gesture recognize is yes, then the process will not go on. If Uiinterfaceenable is no, super view does not hittest such a view. Gesture recognize's Canceltouchinview view does not hittest
practical example and talk about how to publish your own Pod for others to use. is a summary of the practice of Cocoapods.Because of the practical operation more, I made a demo for this article, submitted on my github:cocoapodsdemo, interested readers can download it, study the history of submission, or operate it yourself. Friendly reminder: This article is involved in the static library is the simulator production, do not run the real machine.Why t
principleCocoapods principle, it is to put all dependent libraries into another named Pods project, and then let the main project depends on the pods project, so that the source management work from the main project moved to the PODS project
1, Pods project will eventually compile into a file named Libpods.a, the main project only need to rely on this. a file.
2. For resource files, Cocoapods provides a bash script called pods-resources.sh, which executes every time the project is c
Directory
Kubernetes Introduction
Kubernetes Main Concepts:
Kubernetes Overall structure
Reference
Kubernetes IntroductionKubernetes is a Google Open source container orchestration system for automating deployment, scaling, and management of containerized applications.
Run Anywhere: Support for public cloud, private cloud, hybrid cloud, physical machine
Run and manage containers across machines in a clustered manner, addressing the communication issues betw
the concepts in Kubernetes node, Pod, Replication Controller, service, etc. can be considered as a "resource object", almost all resource objects can be implemented through the Kubectl tool (API call) to perform an increase, delete, change, Check the operation and save it in ETCD for persistent storage. From this point of view, Kubernetes is actually a highly automated resource control system, by tracking the ETCD library in the "Resource expected st
UIView is responsible for responding to user events in addition to displaying content to users. This chapter focuses on the properties and methods associated with UIView user interaction.1. Interaction-related propertiesuserinteractionenabled Default is yes, and if set to no it does not respond to user events and removes the current control from the event queue. That is, the view that sets the Userinterfaceenabled property interrupts the responder cha
Kubernetes is Google 's Open source container cluster management system. It is built on Docker technology and provides a whole set of functions, such as resource scheduling, deployment operation, service discovery, expansion and contraction capacity, for containerized applications, which can be regarded as Mini-paas platform based on container technology. The purpose of this article is to comb the architecture, concepts, and basic workflows of kubernetes, and to describe how to use kubernetes b
A responder chain1.1hitTest:withEventThis function returns the view on which the touch point is located when the touch event occurs. function execution principle is as followsIf the user clicked View E, the following describes the Hit-test view process1, A is the root view of UIWindow, therefore, the Uiwindwo object will be the prime minister of a hit-test;2, obviously the user clicks the scope is within the range of a, therefore,pointinside:withevent
Introduction: Event Handling in iOS is a very important and very rare place. It involves the response of the local side of the chain of questions, very much work two or three years old birds may not be able to answer very professional. Here's a detailed description of event handling in iOS and the responder chain.1. Three major events
Touch events
Speeding up the timekeeping room
Remote control Events
2.
tragedy is that because of external reasons, the development environment to upgrade to VS2010, the above coincidence no longer exist, the program will crash, and because the modules used a lot of memset way to initialize the structure containing vector, but also need to solve the initialization of such structures, For example, non-vector struct members require zero zeroing.From the point of view of the program, this is a pod problem, the following is
? Kubernetes Introduction1. Background informationThe rapid development of cloud computing-IaaS-PaaS-SaaSDocker technology leaps and bounds-Build once, run everywhere-Fast and lightweight container-Complete ecological environment2. What is KubernetesKubernetes (k8s) is Google open-source container cluster Management system (Google internal: Borg). On the basis of Docker technology, a series of complete functions such as deployment operation, resource scheduling, service discovery and dynamic sca
Before we begin to introduce k8s persistent storage, it is important to understand the mechanisms and uses of k8s Emptydir and Hostpath, Configmap, and secret.1, EmptydirEmptydir is an empty directory, and his life cycle is exactly the same as the pod he belongs to, and Emptydir's main role is to share the files produced during the work process between different containers within the same pod. If the
1. Responder ObjectNot all objects in iOS can handle events, and only objects that inherit Uiresponder can receive and handle events, which we call "responder objects."UIApplication, Uiviewcontroller, and UIView inherit from Uiresponder, so they are both responder objects that can receive and handle events.2.UIRespondeUiresponder internally provides the following
completed, each time the change in the state of the finger corresponds to a stage in the process of event action. By began-moved-ended These phases of action (Touch) together constitute an event. There are corresponding methods in the event response object Uiresponder to handle the events of these phases separately.
Touchesbegan:withevent:
Touchesmoved:withevent:
Touchesended:withevent:
Touchescancelled:withevent:
The following parameters correspond to Uitouchphasebega
Uiresponder IntroductionUiresponder This class defines a lot of classes for handling response and time processing. His subcategories are Uiapplication,uiview and UIWindow.There are two types of events in iOS: Touch events, and move events. The most primitive event handlers are,,, and touchesBegan:withEvent: touchesMoved:withEvent: touchesEnded:withEvent: touchesCancelled:withEvent:。 whenever a finger touches the screen or moves on the screen, dragging or even leaving the screen causes a Uievent
. One is invocation. Class, which indicates the Data Type of the Remote Call parameter and the other is the class name of the instance. The reason why the classnamebase operation is performed on the instance class name is that the class
The Org. Apache. hadoop. IPC. server class is the core of the RPC server. Its important data members are as follows:
Member
Description
StaticThreadlocal Server
Indicates the object of the currently running rpc server, that is, the server
The content of this article has been validated based on k8s v1.8.8. K8s Service defines the access entry address of a server, the front-end application accesses a cluster of pod replicas behind it through this entry address, and the access requests from outside are load balanced to each container application on the back end. Between the service and the back-end pod replica cluster, the docking is done throu
) previuslocationinview :( uiview *) view: This method records the previous coordinate value, and the function returns a value of the cgpoint type,The position of the touch on the view. The position returned here is for the coordinate system of the view. If the input view parameter is null during the call, the returned touch point is in the position of the entire window.
When your fingers touch the screen, whether it's single point of touch or multi-point touch, the event starts until all your f
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