CN109324731A - Information display method and device - Google Patents
Information display method and device Download PDFInfo
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- CN109324731A CN109324731A CN201710624471.3A CN201710624471A CN109324731A CN 109324731 A CN109324731 A CN 109324731A CN 201710624471 A CN201710624471 A CN 201710624471A CN 109324731 A CN109324731 A CN 109324731A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0481—Interaction techniques based on graphical user interfaces [GUI] based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
- G06F3/0482—Interaction with lists of selectable items, e.g. menus
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- Theoretical Computer Science (AREA)
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Abstract
The invention discloses a kind of information display method and device, which includes: connection data source, sets the first display type for the first object in data source;According to first display type, corresponding first display pattern is generated;According to the first object in the first display pattern display data sources.Method provided by the invention is not necessarily to carry out type checking and type conversion when realizing polymorphic type list page, whenever model change or types of models increase us and do not need to carry out excessively modifying in Adapter to realize function, with good expansion.Meanwhile different list types is safeguarded by different ViewHolder, is not interfere with each other between each other;There is different type to realize class different layouts and uniformly realize publicly-owned interface class, convenient for management, code is succinct, and maintenance cost is low.In addition, information display method described in the embodiment of the present invention and device, the type checking and type for avoiding class make the transition, and can also improve application performance simultaneously.
Description
Technical field
The present invention relates to technical field of mobile terminals more particularly to a kind of information display method in mobile terminal and
Device.
Background technique
In order to the content for allowing user to know that mobile phone shows at a glance, mobile phone generallys use the form of list to letter
Breath or function are showed.
Such as in current Android application and development, there are many applications that can all have and show that grid is laid out this feelings in lists
Condition, currently used scheme are directly to be realized by ListView control.RecyclerView, also referred to as list control are
The lower newly-increased control of AndroidV7 packet, does view caching for substituting ListView.RecyclerView is used in developer
When, it will use the adapter for being Adapter, developer facilitated to show data by RecyclerView.
Inventors have found that existing implementation all Shortcomings, such as:
Existing scheme one: when using ListView, we generally can be in getView () method of the Adapter of rewriting
Middle multiplexing convertView, to improve performance.But convertView can be returned when Item is single same kind layout
It receives and reuses, but when multiple Item layout types differences, the recycling and reuse of convertView will appear problem.Than if any
A little Item are plain text, some Item are then picture and text mixings, and Item also may have audio-video etc., plain text behavior here one
Class layout, the another kind of layout of the behavior of picture and text mixing, audio-video is a kind of layout again.Therefore there are many different layouts the case where
Under, ListView just seems unsuitable.
Existing scheme two: when realizing a variety of layout lists by RecyclerView traditional approach, although in recycling and again
With having waited until optimization, but first we need to be created in onCreateViewHolder method according to different type it is different
ViewHolder, then in onBindViewHolder method for different types of ViewHolder carry out data binding with
Logical process, this results in needing to carry out type checking and type transition influence property to ViewHolder by instanceof
Energy;Next is detrimental to extend, and the model (model) in data determines the layout types in list.In this case, Mei Dangmo
Type (model) changes or model (model) type increases, we will remove code many in modification adapter, simultaneously
Adapter must also be noted that the position (position) of specific model (model) in lists, if data source is from service
What device obtained, the position (position) of model (model) in lists is just uncertain, will will lead to asking for entanglement at this time
Topic.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of information display method, the list class of this method and data source
Type is unrelated, has good expansion, and have easy to maintain.
To achieve the goals above, the first aspect of the embodiment of the present invention provides a kind of information display method, comprising:
Data source is connected, sets the first display type for the first object in data source;
According to first display type, corresponding first display pattern is generated;
According to the first object in the first display pattern display data sources.
In above scheme, the first display type is set for the first object in data source, comprising:
For the first object setting in data source for returning to the first interface class of layout types and for defining binding
The second interface class of control;
According to the first interface class and the second interface class, definition is for returning to layout in the first interface class
First abstract method of type.
In above scheme, the first display type is set for the first object in data source, further includes:
Publicly-owned interface class is created, and sets different second according to different layout types in the shared interface class and takes out
As method;
Layout types are determined according to first abstract method and second abstract method, are set according to the layout types
Fixed first display type.
In above scheme, the abstract side of different second is set according to different layout types in the shared interface class
Method, comprising:
The method in the publicly-owned interface class is rewritten, different layout types and difference are returned according to the first different objects
Control bundle object.
In above scheme, according to the first object in the first display pattern display data sources, comprising:
Different control bundle objects is bound according to different layout types.
The second aspect of the embodiment of the present invention provides a kind of information display device, comprising:
Data capture unit sets the first display type for the first object in data source for connecting data source;
Control unit, for generating corresponding first display pattern according to first display type;
Display unit, according to the first object in the first display pattern display data sources.
In above scheme, the data capture unit, comprising:
Interface definition unit, in data source the first object setting for return layout types first interface class and
For defining the second interface class of bound control;
Method definition unit, it is fixed in the first interface class according to the first interface class and the second interface class
Justice is for returning to the first abstract method of layout types.
In above scheme, the data capture unit, further includes:
Publicly-owned interface creating unit creates publicly-owned interface class, and according to different layout classes in the shared interface class
Type sets the second different abstract methods;
Display type setup unit determines layout types according to first abstract method and second abstract method,
The first display type is set according to the layout types.
In above scheme, control unit, comprising:
Interface rewriting unit, described control unit rewrite the method in the publicly-owned interface class;
Control bundle unit returns to different layout types and different control bundles pair according to the first different objects
As.
In above scheme, the display unit is according to the first object in the first display pattern display data sources, packet
It includes: binding different control bundle objects according to different layout types.
Information display method described in the embodiment of the present invention and device, when realizing polymorphic type list page without carrying out type
It checks and is converted with type, whenever model (model) change or model (model) type increase us and do not need in Adapter
Function can be realized by carrying out excessive modification.Since Adapter is not relevant for the position of different list types in lists,
List type can be increased or decreased arbitrarily for Adapter, we only need to safeguard data source, therefore have
Good expansion.Meanwhile different list types is safeguarded by different ViewHolder, is not interfere with each other between each other;To not
Same layout has different type to realize class and uniformly realizes publicly-owned interface class, and convenient for management, code is succinct, maintenance cost
It is low.In addition, information display method described in the embodiment of the present invention and device, the type checking and type for avoiding class make the transition,
Application performance can be improved simultaneously.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field
Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings:
Fig. 1 is the implementation process schematic diagram of one embodiment of the invention information display method;
Fig. 2 is the implementation process schematic diagram of another embodiment of the present invention information display method;
Fig. 3 is the structural block diagram of the information display device of one embodiment of the invention.
Specific embodiment
Exemplary embodiments of the present disclosure are described in more detail below with reference to accompanying drawings.Although showing the disclosure in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
It is fully disclosed to those skilled in the art.
As depicted in figs. 1 and 2, the first aspect of the embodiment of the present invention provides a kind of information display method, comprising:
S1, connection data source, set the first display type for the first object in data source;
S2, according to first display type, generate corresponding first display pattern;
S3, according to the first object in the first display pattern display data sources.
Specifically, in the S1 step of the above scheme of the present embodiment, for the first object setting first in data source
Display type can further include: S12, for the first object setting in data source for returning to the of layout types
One interface class and second interface class for defining bound control;S13, according to the first interface class and the second interface
Class defines the first abstract method for returning to layout types in the first interface class.In the present embodiment, data source can
Think local data base, or the database of server end.And the first display pattern of the first object therein is pointer
Different display patterns is arranged to the layout types of multiple and different Item in data source, for example, some item are plain text,
Some item are picture and text mixing, and separately some there may also be audio and video etc..Benefit ListView exists in traditional android application
There are many in the case where different layouts, it may appear that shows appropriate problem.
Still further, being set in the S1 step of the above scheme of the present embodiment for the first object in data source
First display type can also include: S14, the publicly-owned interface class of creation, and according to different layouts in the shared interface class
The second different abstract method of type set;S15, layout is determined according to first abstract method and second abstract method
Type sets the first display type according to the layout types.
In addition, in the S14 step of the above scheme of the present embodiment, according to different layouts in the shared interface class
The second different abstract method of type set, comprising: the method in the publicly-owned interface class is rewritten, according to the first different objects
Return to different layout types and different control bundle objects.
Still further, showing number according to first display pattern in the S3 step of the above scheme of the present embodiment
According to the first object in source, comprising: bind different control bundle objects according to different layout types.
As shown in figure 3, the second aspect of the embodiment of the present invention provides a kind of information display device, comprising:
Data capture unit 10 sets the first display type for the first object in data source for connecting data source.
Control unit 20, for generating corresponding first display pattern according to first display type.
Display unit 30, according to the first object in the first display pattern display data sources.
In above scheme, the data capture unit 10, comprising:
Interface definition unit 101 sets the first interface for returning to layout types for the first object in data source
Class and second interface class for defining bound control.
Method definition unit 102, according to the first interface class and the second interface class, in the first interface class
Define the first abstract method for returning to layout types.
In above scheme, the data acquisition list 10, further includes:
Publicly-owned interface creating unit 103 creates publicly-owned interface class, and according to different layouts in the shared interface class
The second different abstract method of type set.
Display type setup unit 104 determines layout class according to first abstract method and second abstract method
Type sets the first display type according to the layout types.
In above scheme, described control unit 20, comprising:
Interface rewriting unit 201, described control unit rewrite the method in the publicly-owned interface class;
Control bundle unit 202 returns to different layout types and different control bundles according to the first different objects
Object.
Concrete application example presented below using information displaying method of the invention:
Step 1, a publicly-owned interface class (ITypeFactory) is created for all layout types, is defined in interface class
Create (createLayoutView) abstract method of layout and the (createViewHolder (View of creation ViewHolder
ItemView)) abstract method.
Step 2, BaseViewHolder abstract class is derived by inheriting RecyclerView.ViewHolder, in class
It is middle to define the abstract method for finding control getViewFromId (int id) and the abstract method to control setting data
(setViewData(Model data))。
Step 3, different ViewHolder is created according to different layouts and realizes class, and inherit BaseViewHolder pumping
As class and realize its abstract method.
Step 4, different type class is created according to different layouts, and realizes the interface class that step 1 creates
(ITypeFactory) and its two methods are rewritten, is implemented according to different layouts.
Step 5, the Adapter for defining us realizes class, rewrites onCreateViewHolder (ViewGroup
parent,int viewType);onBindViewHolder(BaseViewHolder holder,int position);
getItemCount();The methods of getItemViewType (int position).
Step 6, getLayout () method is called in the getItemViewType of step 5 (int position) method
Obtain different layout L ayoutId.
Step 7, it only needs to call in the onCreateViewHolder method of the Adapter class of step 5
CreateViewHolder (itemView) method can create the ViewHolder of different layouts, therefore also just obtain difference
Item.
Step 8, getViewFromId (int is called in the onBindViewHolder method of our Adapter class
Id it) finds corresponding control with the method for setViewData (Model data) and data is set for different controls and show.
It can be realized as follows for getItemViewType:
In this way, no longer needing to carry out if judgement in getItemViewType, the layout class of list is controlled by data source
Type, while what is returned is no longer simple layout types mark, but the resource ID being laid out (passes through modelList.get
(position) .type () is obtained), it is further simplified code (can embody in onCreateViewHolder).
In conjunction with it is above it can be appreciated that getItemViewType return be layout resource ID, that is,
ViewType in onCreateViewHolder (ViewGroup parent, int viewType) parameter, we can be straight
It connects and creates itemView with viewType, still, problem is come, after itemView creation, it is desired nonetheless to type judgement is carried out,
Create different ViewHolder, for this problem can a point following steps solve.
First of all for the flexibility of enhancing ViewHolder, RecyclerView.ViewHolder can be inherited and derived
BaseViewHolder is as follows
Different ViewHolder inherits BaseViewHolder and realizes setUpView method.
It can be seen that do not need to carry out type checking and conversion to ViewHolder in onBindViewHolder,
It does not need to execute different bindings for different types of ViewHoler, the data binding of different tabular layout types (is patrolled
Collect code) ViewHolder processing corresponding with its own has all been given, it is following that (code in setUpView can be according to reality
Situation modification):
As it can be seen that by such manner, making code cleaner and tidier, it is easier to safeguard, while also enhance scalability.
The embodiment of the present invention can take whole hardware embodiments, whole software implementations or comprising hardware and software
The form of the embodiment of unit.In a preferred embodiment, the present invention is by software realization comprising but be not limited to firmware, be resident it is soft
Part, microcode etc..In addition, can take can or computer-readable media available from the computer that provides program code by the present invention
The form of the computer program product of middle access, the program code be used to being used by computer or any instruction execution system or
It is combined with computer or any instruction execution system.
For explanation, computer is available or computer-readable media can be may include, store, communicating, propagating,
Or transport program any device, described program be used for by instruction execution system, device or equipment using or with instruction execution system
System, device or equipment combine.The media can be electronics, magnetic, optics, electromagnetism, infrared or semiconductor system and (or device or set
It is standby) or communications media.The example of computer-readable media includes semiconductor or solid-state memory, tape, computer can be removed
Floppy disk, random access memory (RAM), read-only memory (ROM), hard disc and CD.The example of current CD includes causing
Close disk-read-only memory (CD-ROM), compact disk-read/write (CD-R/W) and DVD.
Data processing system suitable for storing and/or performing program code will include that at least one is direct by system bus
Or the processor coupled indirectly with storage unit.Storage unit may include the sheet disposed during the practical execution of program code
Ground memory, high-capacity storage and cache memory, the cache memory provide at least certain program code
Temporary storing device to reduce the number that code must be retrieved from high-capacity storage during execution.Input/output
Or I/O equipment (including but not limited to keyboard, display, indicating equipment etc.) can be by directly or through intermediate I/O controller
It is coupled to system.Network adapter is also coupled to system so that data processing system can become through intermediate individual or public affairs
Many networks are coupled to other data processing systems or remote printer or storage equipment.Modem, cable modem
It is only the network adapter of a part of currently available type with Ethernet card.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle of the present invention and objective, this
The range of invention is defined by the claims and their equivalents.
Claims (10)
1. a kind of information display method, which is characterized in that the described method includes:
Data source is connected, sets the first display type for the first object in data source;
According to first display type, corresponding first display pattern is generated;
According to the first object in the first display pattern display data sources.
2. information display method as described in claim 1, which is characterized in that the first object setting in data source
First display type, comprising:
It sets for the first object in data source for returning to the first interface class of layout types and for defining bound control
Second interface class;
According to the first interface class and the second interface class, definition is for returning to layout types in the first interface class
The first abstract method.
3. information display method as claimed in claim 2, which is characterized in that the first object setting in data source
First display type, further includes:
Publicly-owned interface class is created, and sets the abstract side of different second according to different layout types in the shared interface class
Method;
Layout types are determined according to first abstract method and second abstract method, according to layout types setting the
One display type.
4. information display method as described in claim 1, which is characterized in that it is described in the shared interface class according to difference
Layout types set the second different abstract methods, comprising:
The method in the publicly-owned interface class is rewritten, different layout types and different controls are returned to according to the first different objects
Part bound object.
5. information display method as described in claim 1, which is characterized in that described to show number according to first display pattern
According to the first object in source, comprising:
Different control bundle objects is bound according to different layout types.
6. a kind of information display device, which is characterized in that described device includes:
Data capture unit sets the first display type for the first object in data source for connecting data source;
Control unit, for generating corresponding first display pattern according to first display type;
Display unit, according to the first object in the first display pattern display data sources.
7. information display device as claimed in claim 6, which is characterized in that the data capture unit, comprising:
Interface definition unit is set for the first object in data source for returning to the first interface class of layout types and being used for
Define the second interface class of bound control;
Method definition unit is defined in the first interface class and is used according to the first interface class and the second interface class
In the first abstract method for returning to layout types.
8. information display device as claimed in claim 7, which is characterized in that the data capture unit, further includes:
Publicly-owned interface creating unit creates publicly-owned interface class, and is set in the shared interface class according to different layout types
Fixed the second different abstract method;
Display type setup unit determines layout types according to first abstract method and second abstract method, according to
The layout types set the first display type.
9. information display device as claimed in claim 6, which is characterized in that described control unit, comprising:
Interface rewriting unit, described control unit rewrite the method in the publicly-owned interface class;
Control bundle unit returns to different layout types and different control bundle objects according to the first different objects.
10. information display device as claimed in claim 6, which is characterized in that the display unit is according to first display
The first object in mode display data sources, comprising: different control bundle objects is bound according to different layout types.
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CN111126027A (en) * | 2019-12-25 | 2020-05-08 | 北京锐安科技有限公司 | List generation method, device, equipment and medium |
CN112882708A (en) * | 2021-03-10 | 2021-06-01 | 中国民航信息网络股份有限公司 | List interface implementation method and device, electronic equipment and storage medium |
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