CN105187945B - Method for realizing apk control of android set top box screen direction - Google Patents
Method for realizing apk control of android set top box screen direction Download PDFInfo
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- CN105187945B CN105187945B CN201510596291.XA CN201510596291A CN105187945B CN 105187945 B CN105187945 B CN 105187945B CN 201510596291 A CN201510596291 A CN 201510596291A CN 105187945 B CN105187945 B CN 105187945B
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- 230000000694 effects Effects 0.000 claims description 31
- 230000006978 adaptation Effects 0.000 claims description 8
- 230000004048 modification Effects 0.000 claims description 6
- 238000012986 modification Methods 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 4
- 230000006378 damage Effects 0.000 claims description 3
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- 238000005516 engineering process Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/485—End-user interface for client configuration
- H04N21/4858—End-user interface for client configuration for modifying screen layout parameters, e.g. fonts, size of the windows
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
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Abstract
The invention discloses a method for realizing apk control of the screen direction of an android set top box, which comprises the following specific implementation processes: firstly, providing a jar packet interface of apk by an Android set top box, wherein the interface has the function of setting the global direction of a system screen; secondly, designing a system property SystemProperties interface; the interface is a global sharing interface, so that other apks can obtain the screen direction value set by the customized apk when running; apk sets the values 0, 90, 180, 270 for this property SystemProperties, and for the rest of the system apks, the android system will set the screen orientation of the rest of the apks according to the global SystemProperties property. Compared with the prior art, the method for controlling the screen direction of the android set top box by the apk can meet the requirements of special customers, the apk can be provided by the customer to set the screen direction of the system, other apks in the system can also be dynamically adjusted along with the direction, and the method is high in practicability, wide in application range and easy to popularize.
Description
Technical field
The present invention relates to set-top box technique field, specifically it is a kind of it is highly practical, realize that apk controls android machines
The method of top box screen orientation.
Background technology
Google in 2007 release the Android system based on linux kernel increased income, and android is popular in half a day afterwards
Side, with its freely customized property infiltration industry-by-industry of increasing income, including set-top box industry, has expedited the emergence of the production of android set-top boxes
It is raw.
TV is to belong to transverse screen equipment at present, and the output image of android set-top boxes is generally integrally fixed on the basis of transverse screen
's.As the extensive use of android set-top boxes is also getting faster, it is necessary to change.There are a kind of such TV applications at present
Scene, in order to be more convenient display laminated content, TV is vertically arranged, requires android set-top boxes to be controlled by apk so as to generate
The demand in system overall situation direction processed.Based on this, a kind of method for realizing apk control android set-top box screen orientations is now provided.
The content of the invention
The technical assignment of the present invention is to be directed to above shortcoming, there is provided one kind is highly practical, realizes apk controls
The method of android set-top box screen orientations.
A kind of method for realizing apk control android set-top box screen orientations, its specific implementation process are：
Android set-top boxes provide the jar packet interfaces of apk first, and the function of the interface is setting system screen overall situation side
To；
Secondly design system attribute SystemProperties interfaces；The interface is globally shared interface, you can allows other
Apk gets the screen orientation value set by customized apk when operation；
Apk sets the value 0,90,180,270 of attribute SystemProperties, for remaining apk of system, android
System will set the screen orientation of remaining apk according to global SystemProperties attributes.
The apk is the application run in android, is made of one or more window interface activity,
Window interface inherits the activity.java of android standards, an activity life defined in activity.java
The significant function interface that must be called in cycle, the basic life cycle that Android defines an activity are：Just firstly appear
OnCreate functions must be called when building；OnDestroy functions must be called during destruction, foreground is exited and shows and must call
OnPause and onStart functions, onStart functions and onResume functions must be called by being shown in foreground again.
The value 0,90,180,270 of the attribute SystemProperties, corresponding A ndroid four direction outputs itself,
Transverse screen i.e. 0 degree is respectively forced, portrait layout i.e. 90 degree is forced, forces transverse screen upset i.e. 180 degree, forces portrait layout upset i.e. 270 degree.
The jar packet interfaces include interface name setSystemOrientation, return value void, parameter list int
orientation；And current activity directions can be forced to the direction of incoming parameter by the interface first, then writing system
Other activity of property notification are arranged to identical screen orientation.
The SystemProperties interfaces include attribute-name sys.inspur.orientation, default value -1, adopt
Remember the direction value set by it with SystemProperties, so remaining apk can get this at any time when operation
Shared value, achievees the purpose that system so apk follows a direction.
The step of further including adaptation modification android framework interfaces so that after customized apk sets screen orientation,
Change in system in the screen orientation for following customized apk to set in the apk of running background.
The adaptation modification android framework interfaces concretely comprise the following steps：Intercept framework layers of android
Canonical function onResume functions modify adaptation, when apk shows foreground and calls to framework layers of system
During onResume functions, homepage takes out the system screen direction value required by the apk in control system direction, then according to the value come
Direction variable built in matching system, the variable in representation system direction are located in ActivityInfo classes, respectively force transverse screen i.e. 0
Degree, force portrait layout i.e. 90 degree, force transverse screen upset i.e. 180 degree, force portrait layout upset i.e. 270 degree；Finally standard interface is called to sentence
Break screen orientation original current activity, if current screen direction and required screen orientation are inconsistent, calls mark
Quasi- interface come force set show foreground apk screen orientation.
A kind of method for realizing apk control android set-top box screen orientations of the present invention, has the following advantages：
A kind of method for realizing apk control android set-top box screen orientations of the invention, can be used in extending
The flexibility of android set-top boxes and special customized property, meet the requirement of particular client, can provide apk by client and set system
Unite screen orientation, other apk in system also follow the direction to be adjusted into Mobile state, highly practical, applied widely, are easy to
Promote.
Embodiment
With reference to specific embodiment, the invention will be further described.
A kind of method for realizing apk control android set-top box screen orientations of the offer of the present invention, this method realize base
It is respectively SCREEN_ORIENTATION_LANDSCAPE in the four direction output that Android is supported in itself（Force transverse screen be
0 degree）、SCREEN_ORIENTATION_PORTRAIT（Force portrait layout i.e. 90 degree）、SCREEN_ORIENTATION_REVERSE_
LANDSCAPE（It is 180 degree to force transverse screen upset）、SCREEN_ORIENTATION_REVERSE_PORTRAIT（Portrait layout is forced to be turned over
Turn i.e. 270 degree）.It realizes that process is：Can be with android standard interface setRequestedOrientation (int
Orientation) apk directions are set.The method design of apk control Android system overall situation screen orientations is that system carries
For an overall situation SystemProperties attribute.Apk sets the value of the attribute（0、90、180、270）, for system remaining
Apk, Android system will set the screen orientation of remaining apk according to global SystemProperties attributes.
It is the specific implementation process is as follows described：
The 1st, the jar packet interfaces design of apk is provided.
System external opens an interface, and the function of the interface is setting system screen overall situation direction.The interface first can
Current activity directions are forced to the direction of incoming parameter, then other activity of writing system property notification are arranged to
Identical screen orientation.Interface detailed design such as following table：
2nd, system property SystemProperties Interface designs.
Due to being that apk can not possibly operate in foreground always by apk control system overall situation screen orientations, so needing to provide
Certain globally shared interface mode, can get the screen orientation set by customized apk when allowing other apk to run
Value, remembers the direction value set by it using SystemProperties here, and so remaining apk operations whens can be with
When get the shared value, thus achieve the purpose that system so apk follows a direction.Interface detailed design such as following table：
3rd, android framework interfaces adaptation modification.
The application run in android is referred to as apk, and for apk, android has its unique life cycle,
For an apk, usually by one or more activity（That is a window interface）Composition, an activity can be inherited
The activity.java of android standards.It must be adjusted in activity life cycle defined in activity.java
Significant function interface.The basic life cycle that Android defines an activity is：It must be called during initial creation
OnCreate functions.OnDestroy functions must be called during destruction, onPause and onStart must be called by exiting foreground and showing
Function, onStart functions and onResume functions must be called by being shown in foreground again.
After screen orientation is set for customized apk, there may be apk in running background in system, so to allow from the background
Apk follows the screen orientation that customized apk is set, and the screen side of the apk must must be reset when apk shows foreground when backstage
To.So according to the life cycle of activity, it can run apk's with onStart functions and the mandatory modification of onResume functions
Screen orientation.
The canonical function onResume functions that selection intercepts framework layers of android are modified adaptation, when apk is shown
Simultaneously call to homepage during the onResume functions of framework layers of system and can take out sys.inspur.orientation in existing foreground
The direction value stored（System screen direction i.e. required by the apk in control system direction）, then it is to match according to the value
Direction variable built in system, the variable in representation system direction are located in ActivityInfo classes, are respectively SCREEN_
ORIENTATION_LANDSCAPE（Force transverse screen i.e. 0 degree）、SCREEN_ORIENTATION_PORTRAIT（Force portrait layout i.e. 90
Degree）、SCREEN_ORIENTATION_REVERSE_LANDSCAPE（It is 180 degree to force transverse screen upset）、SCREEN_
ORIENTATION_REVERSE_PORTRAIT（Force portrait layout upset i.e. 270 degree）.Finally call standard interface
GetRequestedOrientation () judges the original screen orientations of current activity, if current screen direction is with wanting
The screen orientation asked is inconsistent, then calls standard interface setRequestedOrientation to force to set and show foreground
The screen side of apk
Embodiment：
（1）System layer provides the customized jar bags needed for apk, includes interface setSystemOrientation (int
orientation).Incoming parameter is the shapings such as 0,90,180,270, carrys out decision systems screen orientation.
（2）Increase SystemProperties attributes sys.inspur.orientation connects for storing above-mentioned jar bags
The system orientation interface that oral instructions enter.
（3）According to the life cycle of android apk, when each activity switchs to foreground, will necessarily call
OnResume functions, the onResume interfaces of the no matter heavy not activity.java of rewriting system of the activity, can all call
The onResume interfaces of system.So increase following code in the onResume interfaces of system activity.java：
int rotation = SystemProperties.getInt
(“sys.inspur.orientation”,-1);
int orientation = 0;
if(rotation>=0&&rotation<=270){
switch(rotation){
case 0:
orientation = ActivityInfo.SCREEN_
ORIENTATION_LANDSCAPE;
break;
case 90:
orientation = ActivityInfo.SCREEN_
ORIENTATION_PORTRAIT;
break;
case 180:
orientation = ActivityInfo.SCREEN_ORIENTATION_REVERSE_
LANDSCAPE;
break;
case 270:
orientation = ActivityInfo.SCREEN_ORIENTATION_
REVERSE_PORTRAIT;
break;
default:
break;
}
}
if(this.getRequestedOrientation() != orientation){
this.setRequestedOrientation(orientation);
}
Code homepage takes out the system orientation value that apk is set, i.e. system property sys.inspur.orientation is deposited
The value of storage, then sets the canonical variable value of android directions institute code according to value, and finally obtain apk works as front direction, if
Set system screen direction is required when front direction is not equal to, then calls android standard interfaces
SetRequestedOrientation is set by force so the direction of the activity of apk is to require system screen direction.
Above-mentioned embodiment is only the specific case of the present invention, and scope of patent protection of the invention includes but not limited to
Above-mentioned embodiment, a kind of any method for realizing apk control android set-top box screen orientations for meeting the present invention
The appropriate change or replacement that claims and any person of an ordinary skill in the technical field does it, should all fall into
The scope of patent protection of the present invention.
Claims (2)
- A kind of 1. method for realizing apk control android set-top box screen orientations, it is characterised in that specific implementation process is：Android set-top boxes provide the jar packet interfaces of apk first, and the function of the interface is setting system screen overall situation direction；Secondly design system attribute SystemProperties interfaces；The interface is globally shared interface, you can allows other apk to transport The screen orientation value set by customized apk is got when row；Apk sets the value 0,90,180,270 of attribute SystemProperties, for remaining apk of system, Android system The screen orientation of remaining apk will be set according to global SystemProperties attributes；The value 0,90,180,270 of the attribute SystemProperties, corresponding A ndroid four direction outputs itself, respectively It it is 270 degree to force transverse screen i.e. 0 degree, forcing portrait layout i.e. 90 degree, pressure transverse screen upset i.e. 180 degree, force portrait layout upset；The jar packet interfaces include interface name setSystemOrientation, return value void, parameter list int orientation；And current activity directions can be forced to the direction of incoming parameter by the interface first, then writing system Other activity of property notification are arranged to identical screen orientation；The SystemProperties interfaces include attribute-name sys.inspur.orientation, default value -1, use SystemProperties remembers the direction value set by it, and so remaining apk can get this at any time when operation common Value is enjoyed, achievees the purpose that all apk of system follow a direction；The step of further including adaptation modification android framework interfaces so that after customized apk sets screen orientation, system In in the apk of running background follow the screen orientation change that customized apk sets；The adaptation modification android framework interfaces concretely comprise the following steps：Intercept the mark of framework layers of android Quasi-function onResume functions are modified adaptation, when apk shows foreground and the onResume called to framework layers of system During function, homepage takes out the system screen direction value required by the apk in control system direction, then according to the value come matching system Built-in direction variable, the variable in representation system direction are located in ActivityInfo classes, respectively force transverse screen i.e. 0 degree, force Portrait layout i.e. 90 degree, force transverse screen upset to be 180 degree, i.e. 270 degree of pressure portrait layout upset；Standard interface is finally called to judge current Screen orientation original activity, if current screen direction and required screen orientation are inconsistent, calls standard interface To force to set the screen orientation for the apk for showing foreground.
- 2. a kind of method for realizing apk control android set-top box screen orientations according to claim 1, its feature exist In the apk is the application run in android, is made of one or more window interface activity, window circle Face inherits the activity.java of android standards, defined in activity.java in an activity life cycle The significant function interface that must be called, the basic life cycle that Android defines an activity are：Must during initial creation OnCreate functions must be called；OnDestroy functions must be called during destruction, exit foreground show must call onPause and OnStart functions, onStart functions and onResume functions must be called by being shown in foreground again.
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| CN107168692A (en) * | 2017-04-01 | 2017-09-15 | 山东超越数控电子有限公司 | A kind of handheld subscriber interface implementing method and system based on ReWorks operating systems |
| CN107610624B (en) * | 2017-08-23 | 2020-12-01 | 深圳易普森科技股份有限公司 | Display link driving type automatic horizontal screen control method and system |
| CN110662095B (en) * | 2019-08-28 | 2021-10-26 | 北京小米移动软件有限公司 | Screen projection processing method and device, terminal and storage medium |
| CN111273981B (en) * | 2020-01-17 | 2024-02-20 | 深圳市研强物联技术有限公司 | Android system-based display screen adaptation method and system |
| CN112486621B (en) * | 2020-12-07 | 2022-05-06 | 广州朗国电子科技股份有限公司 | Horizontal and vertical screen adaptation method, device and storage medium based on IO level |
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| CN104615336A (en) * | 2015-02-15 | 2015-05-13 | 联想(北京)有限公司 | Information processing method and electronic equipment |
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| JP2004279909A (en) * | 2003-03-18 | 2004-10-07 | Seiko Epson Corp | Display controller and display device |
| CN103745709A (en) * | 2014-01-24 | 2014-04-23 | 福州瑞芯微电子有限公司 | Embedded self-adaptive screen displaying method |
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