t pod responder

responder chain , handing the event to the previous responder for processing Example: Responder ChainThe complete process of event delivery first pass the event object from top to bottom (passed by the parent control to the child control), and find the most appropriate control to handle the event. Call the touches of the most a

responder chain , handing the event to the previous responder for processing Example: Responder ChainThe complete process of event delivery first pass the event object from top to bottom (passed by the parent control to the child control), and find the most appropriate control to handle the event. Call the touches of the most a

After upgrading k8s from 1.7.9 to 1.10.2, found that the deletion pod has been in the terminating state, the investigation found that the deletion of the pod has a feature is that pod Yaml in the command part is wrong, as follows:apiVersion: v1kind: Podmetadata: name: bad-pod-termation-testspec: containers: - imag

Touch the responder Chain Event : An action captured by the hardware to the userIOS of Events : Touch Time , Shaking Events , Remote Control Events Touch Events : support multi-touch , up to one point , 6 s future devices support pressure-sensitive recognition How do I capture a user's touch events ? 1. The user can touch all the UIView or UIView sub-classes 2. Create a UIView Subclass 3. several ways to rewrite UIViewand touch-related methods

1. If the parent control cannot receive touch events, then the child controls will not be able to receive touch events.2, in the following cases, the control is unable to receive touch events1. Do not receive user Exchange userinteractionenable= No;2. Hide Hiden = YES;3. Transparent alpha = 0.0 ~ 0.01;Tip: Uiimageview's userinteractionenable defaults to No, so Uiimageview and his child controls do not receive touch events by default.3, the complete process of the event1. Pass the event object fr

A variety of operational events are encountered in iOS development and can be responded to by programs. First, when an event response occurs, you must know who is responding to the event. In iOS, the responder chain responds to events, all event-response classes are uiresponder subclasses, and the responder chain is a hierarchy of different objects, each of which gets an opportunity to respond to event mes

Using View Controllers in the Responder ChainUsing the view controller in the response chainView controllers is descendants of the UIResponder class and is therefore capable of handling all sorts of events. When a-view does not respond to a given event, it passes, it Superview, traveling up the view hierarchy all The to the root view. However, if any view in the chain are managed by a view controller, it passes the event to the View controller object

case the ARP request will be sent for the MAC address of the pre-configured default gateway IP address. A device only cares about the MAC address of the next hop, not of the final destination. The absurdity of l2pop without an ARP Responder Let there be VM 1 hosted on Compute node A, and Vm 2 hosted on Compute Node B. With l2pop disabled, when VM 1 sends an initial message to VM 2, compute node A won't know the MAC address of VM 2 and will be forced

Event Transfer Process of the responder chainEvent Transfer Process of the responder chain1. hitText Method1. The hitText method calls this method when an event is passed to a control.2. hitText: Find the most appropriate view.3. hitText Method1) Can I determine whether the window can handle the event? If not, it means that the window is not the most suitable view, and it does not look for a view that is mo

The event delivery process for the responder chainFirst,Hittext Method1.the Hittext methodwhen an event is passed to a control, the control calls this method2.Hittextfunction:to find the most suitableView. 3. Hittext Method1),determine if the window can handle events?if not, it means that the window is not the most suitableView, and will not find a better fit than yourself.View,Direct returnNil,Noticeuiapplication, there is no most suitableView. 2),de

The event Transfer Process of the responder chain, and response event TransferEvent Transfer Process of the responder chain1. hitText Method1. The hitText method calls this method when an event is passed to a control.2. hitText: Find the most appropriate view.3. hitText Method1) Can I determine whether the window can handle the event? If not, it means that the window is not the most suitable view, and it do

1:The iOS system detects a finger touch (touch) action, packaged as a Uievent object, into the event queue of the currently active application, passed to the singleton UIWindow to handle- > UIWindow Find the first responder through the event distribution mechanism of the responder chain (as shown in the steps) Figure IIJoin the user click on the view E, the following together with the Diagram II Hit-test

Touch eventsA variety of events occur during the user's use of the appEvents in iOS can be divided into 3 major types触摸事件：加速计事件：远程控制事件：Responder ObjectNot all objects in iOS can handle events, only objects that inherit Uiresponder can receive and handle events. We call it "responder object."UIApplication, Uiviewcontroller, and UIView inherit from Uiresponder, so they are both

tables, as the Neutron service is aware of VM MAC addresses, s Cheduling, and tunnel IDs. More information is found in the dedicated L2pop post. So, we optimized one broadcast and what's about ARPs? Compute node A is aware of the MAC address (and whereabouts) of VMs 2, but VM 1 isn ' t. Thus, when sending a initial message from VM 1 to 2, an ARP request would be a sent out. Compute Node A knows the MAC address of VM 2 but chooses to put a blindfold over its eyes and send a broadcast anyway. Wel

Touch eventsA variety of events occur during the user's use of the appEvents in iOS can be divided into 3 major types触摸事件：加速计事件：远程控制事件：Responder ObjectNot all objects in iOS can handle events, only objects that inherit Uiresponder can receive and handle events. We call it "responder object."UIApplication, Uiviewcontroller, and UIView inherit from Uiresponder, so they are both

Mentioned in the previous article on the keyboard corresponding time to get the current first responder method is that Apple has a way to upload to the app Store, this article will introduce a very simple and unused to the private API method to obtain the current first responder.Implementation idea: The iOS API used is- (BOOL)sendAction:(SEL)action to:(id)target from:(id)sender forEvent:(UIEvent *)eventWith this API, as long as the incoming target is

Introduction and practice of pod in kubernetes The concept of podDetailed pod explanation can refer to k8s official website, the concept of pod mainly has the following points:(1) Pod is the smallest and simplest unit that you can create and deploy in Kubernetes. A pod r

custom class. After binding this file, press and hold the control key, when you drag the file's owner to a control in the XIB, The iboutlet element defined in the Custom class is connected to the element in the XIB. Similarly, when you drag "actions of controls in XIB" to the file's owner, the response of the action in XIB and the customThe process of connecting an ibaction in class. Therefore, when multiple XIB files exist, that is, multiple views are available. Different viewcontrollers can b

IOS Event Response Chain (Responder Chain), iosresponder Overview In iOS, the view level is generally the parent view-> Add each seed view. At this time, a view (subview) has a button that requires interaction. But sometimes we will find that no response is made in any case. At this time, it may be that we are still confused about the response to iOS events. Events in iOS Touch event Response object (UIResponder) In iOS, events can be receive

First, the touch event transfer principle(1) The large direction is: passed from the parent control to the child control.--The parent control checks whether it can accept event handling first--and then look at the touch that's not in your own range--if so, iterate over the child controls. See if there are any suitable child controls to handle--assuming that the child controls are not appropriate, then the parent control will handle it on its own.Another big rule is that events are usually from u