Objective
In the previous article, we learned about the builder pattern and prototype pattern of the creation pattern. This article is to learn the structure mode of the adapter mode and bridge mode.Adapter mode
Brief introduction
The adapter mode is a bridge between two incompatible interfaces. This type of design pattern belongs to the structural pattern, which combines the functions of two separat
What is the adapter mode?
In computer programming, the adapter mode (sometimes called packaging style or packaging) adapts a class interface to what the user expects. The adapter can work together classes that cannot work together because of the incompatibility of interfaces, by encapsulating their own interfaces in an existing class.
How does one implement the
If the size of the power adapter used is the following:
1, too small-the voltage provided is not enough to start the notebook computer, the battery led will Flash 8 times quickly, and in the lower right corner of the screen display a notification message "The output power of the HP Smart AC Adapter connected to your computer is insufficient. Please connect a higher capacity AC
Android note 11. ListView + AdapterUnderstanding Adapter 1. ListViewListView is a common component in Android development. It displays data in the form of a list. Generally, a ListView consists of the following three elements:1. View: Displays the list view, which is usually specified by an xml file. As we all know, the Android interface is basically completed by the xml file, so the ListView interface should also use the xml definition. For example,
The adapters in life
Buy a laptop, buy a mobile phone, there is a power adapter, the power adapter is called external power supply, is a small portable electronic equipment and electrical power supply voltage conversion equipment, commonly used in mobile phones, notebook computers. Its role is to convert the home's 220V high voltage to these electronic products can work 5v~20v low voltage, so that they can
is a structural pattern, and its main function is to convert the interface of one class into another interface that the customer wants. The adapter mode makes it possible for those classes that would otherwise not work together because of incompatible interfaces to work together.For example, your phone only 2.5mm interface (seemingly on the Nokia dry out), but you can only buy 3.5mm, then you need to buy an adapte
Tags: convert blank HTTPS log adapter ROI students DAO SimpleHere is a ListView demonstration, we are familiar with the ListView, the steps are divided into:
To create a Bean object for a ListView
Create a Itemview layout for the adapter of a ListView
Create a Adaoter for a listview (* * Focus)
Set Adapter to ListView
I. Create a Bean ob
1. OverviewDuring software development, we often encounter inter-system integration. The most common problem during system integration is the inconsistent interfaces between systems. Many system modules that can meet the requirements are unavailable due to inconsistent interfaces. For example, the commonly used media players are MS media player and RealPlayer. Their file structure and software interfaces are completely different. The former supports the WMF Format of audio and video, the latter
Reprint please indicate the source:http://blog.csdn.net/zxt0601/article/details/52848004
This article is from: "Zhang Xudong Blog" an overview
Definition: The adapter pattern transforms the interface of a class into another interface that the client expects, and the purpose of the master is to be compatible, so that two classes that would otherwise not work together because of an interface mismatch can work together. Its alias is the wrapper (Wrapper)
Adapter modeFrom the name you can see that the adapter is for the interface mismatch, and the compatibility method made,Suppose we have an already existing class adaptee, some of which already exist and implement a good method MethodA. However, the client does not want to call this class, but instead wants to invoke a specific interface such as the target interface.So if you want to call the Adaptee.methoda
Design Mode in Android-adapter ModeAdapter Mode
From the name, we can see that the adapter is a compatible Method for interface mismatch,Suppose we have an existing class Adaptee, and some of them have existing and implemented Methods methodA. But the customer does not want to call this class, but wants to call a specific interface, such as the Target interface.So if you want to call Adaptee. the methodA ()
http://blog.csdn.net/jason0539/article/details/224684571. OverviewTransforms the interface of one class into another interface that the customer wants. The adapter mode makes it possible to work together those classes that would otherwise not work together because of incompatible interfaces.2. Issues to solveThat is, the adapter mode makes it possible for those classes that cannot work together because the
I. Overview Concept In fact, to give a life example, adapter mode can be analogous to adapters, such as Typec and USB adaptor, the original can only be connected to Typec interface, expand to be able to connect to ordinary USB; Here the adaptor on the one hand need to check on the Typec, on the one hand need as a USB jack.If you want to cite a Java example, take a look at the JDBC Chapter! A simplified UML diagram for JDBC (the middle of the xxx JD
This article mainly introduces the Adapter mode in php design mode, and uses php to implement the Adapter mode. if you are interested, refer to it.
I. intention
Converts an interface of a class to another interface that the customer wants. The Adapter mode makes it impossible to work together because the interface is incompatible.
II. structure of the
You want to use a class that already exists, and its interface doesn't fit your needs.Creating a class requires working with other classes to accomplish the task, requiring an adapter to transfer methods from other classes to the adapterWhat is adapter mode: There is a target client class that wants to apply an interface to an already existing class, but the interface of the existing class does not conform
4. Adapter Mode SummaryIn the object adapter mode, the adapter is associated with the adaptation, and in class adapter mode, the adapter is an inheritance relationship to the appropriate person. whether an object adapter or a clas
Problems in the real world
There is a socket, this socket is three mouth, but we have only two tentacles of the plug, a stupid method is to directly force the two tentacles bent, inserted into (this kind of thing I have done), there is another way is to find a conversion head.Look at the following figure is probably clear, it is obvious that the existing system is difficult to match with vendors, how to do it? Well, the adapter is handy.
Some examples of life
In our daily life, for the adapter, can be said to be everywhere. For example, we usually use the notebook computer, may be the operating voltage of the laptop is 20V, but our general household electricity is 220V, this time when the computer is charged with a power adapter to the 220V of the computer to convert to 20V voltage. This power adapter
Adapter mode what is adapter Mode
The adapter mode is a structural mode that allows two unmatched interfaces to work together.
The adapter mode allows two unmatched classes to work collaboratively by converting one interface type to another interface type that the client expects.
The
1. Definition of Adapter mode (Adpater pattern)(1) Convert the interface of a class into another interface that the customer wants. The adapter mode makes it possible for those that cannot work together because the interface is incompatible .(2) Structure and description of the adapter mode①client client, call the domain interface target that you need②target:
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