Value Transfer Agent for iOS and value transfer agent for ios
There are several methods for transmitting values in iOS, including: pass value by proxy, pass value by block, pass value by attribute, transfer value by notification, pass value by single case, and pass value by
There must be at least three steps:One, the implementation of the ProtocolSecond, establish a relationshipThree, set the range of the zoomSee the code for details:#import "ViewController.h" @interface Viewcontroller () The use of IOS Uiscrollview Agent and several methods of agent monitoring during scaling
iOS implementation multi-agent
What is multi-agent
Use the Ring Letter SDK students should be more than a stranger to the agent, please see the following code:
@method
@brief Register a listener to the listening list
@discussion Add the Listener object to the listening list and prepare to receive the corre
IOS development agent design tips and ios development tips
1. Tips on proxy Object Design
When designing a class, you need to obtain the required dynamic data from the outside through proxy and protocol. There are two methods to design proxy here.
Declare a proxy attribute in the class you designed
Then, when used externally
Finally, follow the Pro
In real life we have a variety of agreements, but all have one thing in common, is the proposed agreement, we must abide by, non-compliance is a breach of contract. There is also the concept of agreement in OC and is similar to the characteristics of our real-life agreements. Sometimes we want to do something ourselves, but now we do not have the ability to do it ourselves, we need to find an agent to help us do. Then there is the concept of proxy in
Proxies are a common design pattern in iOS development. We can easily implement this design pattern with the help of Protocol (see Blog: Objective-c Protocol (Protocol)).What is an agent?Apple's official documentation gives a clear explanation: delegation is a-simple and powerful-pattern in which one object-a program acts on behalf of, or in coordination with, another object. The delegating object keeps a
Delegate:1 use of proxy design patterns we need to understand the three elements first.* Principal: The person who entrusted others to perform certain operations (object)* Agent: The person (object) who performs certain operations on the delegated area* Protocol: (protocol) The client needs the action of the agentThe > protocol is a set of criteria (a stack of method declarations), only. h files. The definition of the agreement begins with the @protoc
Apple Mobile (no jailbreak) can not be like Android directly via USB to pass files, can only be downloaded through the network to download files. Therefore, the JMeter HTTPS proxy certificate to the same as the Fiddler certificate to download to install. Step One: first the JMeter agent after the start of the certificate (CRT files) through QQ to the mobile phone QQ. Step two: Mobile QQ Open the file step three: Open with the QQ browser, then will jum
agreementFirst step: Make Agreement: (Protocol Name: class name +delegate)@class MyView; @protocol myviewdelegate Step two: Make a proxy@interface Myview:uiview Step Two: Specify the proxy @property (nonatomic,assign) ID Delegate ; @endThe third step: the agent follows the agreement.The fourth step: proxy implementation of the Protocol must be implemented in the method and other optional methods.Fifth step: The client notifies the
uitextfield The use of frequency or relatively high, such as the general account login, etc. are used to uitextfield uitextfield Welcome to join QQ Group Name: IOS Coterie Group number:177204933; progress and growth along the path of IOS development. iOS UI Learning-uitextfield Agent
) This involves a multi-threaded knowledge.Generally we value for single-threaded, that is, the system can only handle one event at a time, such as our picture carousel here, if the user on the page to drag other things, such as our textview here, then the system will focus on this event, no time to take into account our picture carousel, so the picture carousel will not move.We are going to introduce the time Nsrunloop this class. What is it? In fact, read a lot of other people's notes, everyon
IOS development-pass the value through the Protocol and the Delegate agent (Delegate)Because Object-C does not support multi-inheritance, it is often replaced by Protocol. Protocol can define only one set of public interfaces, but it cannot provide specific implementation methods. That is to say, it only tells you what to do, but does not care about how to do it. When a class uses a Protocol (Protocol), it
For IOS developers, use the Protocol and the Delegate agent (Delegate) to pass the value, and use the protocoldelegate
Because Object-C does not support multi-inheritance, it is often replaced by Protocol. Protocol can define only one set of public interfaces, but it cannot provide specific implementation methods. That is to say, it only tells you what to do, but does not care about how to do it.
When a cl
following points:
You can take advantage of Xcode's check mechanism. For a method defined as @required, the compiler will have a warning if the protocol is implemented without implementing this method. This prevents you from inadvertently forgetting to implement a particular code, and because of the runtime characteristics of OC, such errors tend to cause the program to crash at run time.
Facilitates the encapsulation of the code. If a class implements a protocol, the method in thi
The project running on iOS9 needs to be configured in the Info.plist file to include the following information,APP Transport Security SettingsAllow arbitrary Loads = YEStrue/>Set useragent (user agent)Registration Agent Otherwise click menu does not interact, currently supports 9.0+[Self.yoursite setValue:@ "mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.3; trident/7.0;. net4.0e;. NET4.0C)" forkey:@"applic
: (Nsindexpath *) Indexpath{if (indexpath.row% 2) {return uitableviewcelleditingstyleinsert;} else {return uitableviewcelleditingstyledelete;}return uitableviewcelleditingstyleinsert;}4,cell will be called when it is selected or uncheckedIf you are a custom cell control, all child controls should be added to the Contentview-(void) setselected: (BOOL) selected animated: (bool) Animated {[Super setselected:selected animated:animated];Configure The view for the selected stateif (selected) {Self.con
Shareviewcontroller internal strong pointer points to the mail object with the items strong pointer inside the Group,group, the Mail object has an option attribute (block), and option internally uses the self is the controller, So block (option is copy type) will point to self with a strong pointer. Note: This is not the same as above, do not be the VC agent (agent is weak) is confused, is the block strong
:@ " return to the calling agent " forstate:uicontrolstatenormal]; [self. View addsubview: button]; }-(void) show { [self. Delegate getColor: [uicolor redcolor]]; [self. Navigationcontroller poptorootviewcontrolleranimated:YES]; }-(void) didreceivememorywarning { [Super didreceivememorywarning]; //Dispose of any resources the can be recreated}In a mainvccongtroller push past Childerviewcontrller, click the button in Childerviewc
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