Adapter design mode, adapter ModeAdapter design mode definition:
Converts an interface of a class to another interface that the customer wants. The Adapter mode allows the classes that cannot work together due to incompatibility of interfaces to work together.
It sounds amazing. In fact, the adapter is everywhere in o
We often encounter this situation in development: there are some features that cost a great deal of their own development, but the existing third-party libraries are less mature and we can use them temporarily. However, once the need to modify the dependent library, the source code also needs to be modified on a large scale, there is no way to minimize the extent of the changes? At this point we can consider using adapter mode.First, the definitionThe
Adapter mode:An interface that transforms an interface of a class into another desired class. Adapters allow the interfaces to work with incompatible classes.interfaceofclassintointerface clients expect. Adapter lets classes work together that couldn‘t otherwise because of incompatible interfaces.Simply put, the adapter mode is to add an intermediate layer, remem
I. What is an adapter and what is the adapter for?Adapters are Adapterview views such as ListView-List View control, Gallery-thumbnail browser Control, GridView-Grid control, Spinner-drop-down list control, Autocompletetextview-Auto prompt text box, Expandablelistview-a list control that supports the expand/Shrink feature, and so on) bridges the data to process the data and bind the data to the Adapterview.
One system wants to use another system's data source, but the data source format does not meet its own requirements, which can be used in adapter modeOne example: The data provided by the personnel system returns the map type, but the financial system needs a List type of dataData sources provided by the personnel system:1 ImportJava.util.HashMap;2 ImportJava.util.Map;3 4 Public classpeople {5 PublicMapGetorgname () {6MapNewHashmap();7Map.put (1
did not expect her wife to get angry. She told her that he was an unlearned hacker and never let him in again. And Shen's transfer plan ended in failure.
Ji Xiaolan thought, I can't say that I want to make an appointment with a girl like Shen. when I leave the house, I want to say that my wife loves listening. What I do is what I love and do what I do, in this way, both of them can be done. The following code is used:
Reading: The old lady thought she was going to study. She actually went o
The holes that use Holder in the Adapter, and the Adapter uses Holder
When using the GridView and ListView, Zookeeper usually uses Holder to cache each item in the Adapter to improve efficiency. However, if the Holder is not used properly, this caching mechanism will lead to many unexpected problems, I would like to sum up my experience to avoid further attacks i
1. Effect of adapter mode assume that a developed class and its specific method exist, but there is an inconsistency between the existing interface and the reuse method, at this time, we must use a mechanism to convert existing methods into other acceptable methods. This is the adapter pattern. (adapter pattern is the simplest and most intuitive mode in all mo
[Mode overview] ---------- by xingoo Pattern intent
If there is already a type, but the interface to be called cannot be implemented through this class. Therefore, convert the existing class to a class that supports interfaces after adaptation.
In other words, it is to program one existing interface to another available interface. Mode Structure
Class Adapter]
Target Interface
Existing adaptee class
The class converted between the
STL1 -- sequence container and sequence container adapter, stl1 Adapter
Container
A container is a collection of specific types of objects. The types of containers are divided into ordered containers, container adapters, and associated containers. Ordered containers aggregate a single type of elements into containers, then, these elements are stored and accessed based on their locations.
The order of elemen
The adapter object derives from Android.widget.Adapter, which includes constructing the list item control and binding the data item to the list item control.Common adapters are: Array adapter arrayadapter, database adapter CursorAdapter.An example of using an adapter object is as follows:Defining dataString [] data = n
Adapter Mode definition: Jiuge two incompatible classes together, in a structured pattern, with two identities (adaptee) and adaptor (adapters).Why use Adapter modeWe often encounter the need to combine two classes that are not related to each other, the first solution is to modify the interfaces of the respective classes, but if we do not have the source code, or we do not want to modify the respective int
Situation Description:Today in the writing of data display, using the ListView, in its adapter, found that the number of times the GetView method execution is the data item n times (my side of the display is 4 times times, this times the value does not know will change), this is obviously unscientific!Check the data and find the layout problem of the ListView. I set the android:layout_height= "wrap_content" Height to wrap_content. While the Wrap_conte
By using this method, you can connect a mobile device (iphone, ipad, or mobile phone) to the Internet through a wireless network card of a laptop.Microserof virtual wifi miniport adapter is a new feature of Windows 7, which is called virtual wifi.The virtual Wifi function in Windows 7 can Virtualize a network card based on a wireless network card, so that the AP function of the wireless router can be realized, and wireless devices can share the Intern
Defined:The use of two incompatible classes jiuge in a structured pattern requires two identities for adaptee (the adapter) and adaptor (adapters). why use?We often encounter the need to combine two classes that are not related to each other, the first solution is to modify the interfaces of the respective classes, but if we do not have the source code, or we do not want to modify the respective interfaces for an application. What to do?Using
Adapter write more will have a kind of write to vomit feeling, today to experience without writing adapter wait feel, generally speaking, we write adapter is rewrite GetView method, and then use Viewholder design mode, in GetView data binding, write once fortunately, Write more will feel in constantly doing repetitive work, then there is no such a generic
C ++ Primer study note _ 53_STL analysis (8): function adapter: bind2nd, mem_fun_ref, function adapter application example
Review
5. built-in function objects in STL
I. Adapter
1. Three types of adapters:
(1) Container adapter: Used to expand seven basic containers and use basic container extensions to form stacks, qu
Object-oriented Adapter
Assume that a software system already exists and you want it to work with a new vendor class library, but the interfaces designed by the new vendor are different from those of the old vendor.
You don't want to change the existing code to solve this problem. You can write a class to convert the vendor interface into the interface you expect.
The process of using the adapter is as f
The most commonly used adapters in Android are adapter three kinds: 1.ArrayAdapter 2.SimpleAdapter 3.BaseAdpter, here we use the code in conjunction with the text to understand the way. You first need to set up three button buttons in the start layout activity_main.xml file and set the click events separately and combine with the mainactivity One: Arrayadapter: Easy-to-use adapter, typically used to w
Http://www.35java.com/zhibo/forum.php? MoD = viewthread tid = 271 extra = Page % 3d2
Another method of the adapter mode is the class adapter mode. In this mode, the adapter directly inherits adaptee (the new category to be introduced) to own the members and methods in it, in C ++, you can do this: In C ++, multiple inheritance can be performed, but
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