CN102707977A - Increment upgrading method based on Android application software - Google Patents
Increment upgrading method based on Android application software Download PDFInfo
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- CN102707977A CN102707977A CN2012101533875A CN201210153387A CN102707977A CN 102707977 A CN102707977 A CN 102707977A CN 2012101533875 A CN2012101533875 A CN 2012101533875A CN 201210153387 A CN201210153387 A CN 201210153387A CN 102707977 A CN102707977 A CN 102707977A
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Abstract
The invention relates to an increment upgrading method based on Android application software. The increment upgrading method comprises the following steps of: comparing a current version with a latest server version; downloading corresponding increment upgrading plug-in packs according to the differences of the versions; installing and running the increment upgrading plug-in packs; and modifying application program packs in increment upgrading manners set in the packs, wherein the application program pack is modified by modifying functional files and resource files in the packs. According to the increment upgrading method provided by the invention, the contents of increment upgrading comprise two different file targets, namely the functional files and the resource files, so that the increment upgrading plug-in packs only comprise modified upgrading files to the greatest extent. Therefore, the Android application software can carry out increment update on the aspects of functions and resources. Furthermore, the waiting time of a user and the flow consumption can be reduced, and the upgrading is more efficient, convenient and rapid.
Description
Technical field
The present invention relates to a kind of upgrade method of software, relate in particular to a kind of increment upgrade method, belong to the communications field based on the Android application software.
Background technology
Android is the operating system of increasing income based on Linux of Google's exploitation; Because its character of increasing income; Its pouplarity is very high; The thing followed be the Android system electric terminal and the extensive growth of customer group thereof, the growth of customer group also makes the application software on this platform grow with each passing day.Simultaneously; The last application software product of Android also becomes better and approaching perfection day by day; The size of some software even reach tens, and along with development of science and technology, the speed that software is weeded out the old and bring forth the new is also more accelerated; Existing application software upgrading mode all is complete renewal mostly, promptly downloads a complete APK again and covers the pattern of installation.Yet; The renewal of software only is a kind of little change on the function sometimes, and selects complete update mode will cause expending of more wait of user and flow, though can on actual functional capability, accomplish upgrading equally; But will make so big sacrifice with regard to some little changes, obviously be unnecessary.
Summary of the invention
Goal of the invention: in view of above-mentioned defective is not enough, the object of the present invention is to provide the increment upgrade method of application software in a kind of Android system, can make application software just can upgrade the more efficient quick of upgrading simultaneously by increment on some functions and the resource.
Technical scheme: the present invention realizes through following technological means:
A kind of increment upgrade method based on the Android application software may further comprise the steps:
1) compares current version and server latest edition;
2) download corresponding increment upgrading plug-in unit bag by difference in version;
3) install and move increment upgrading plug-in unit bag;
4) by the increment upgrading mode of setting in the bag, revise application package;
Wherein, the modification of application programs bag comprises to the function file modification in wrapping and to wrapping the modification of interior resource file.
Application package to after upgrading is signed again.
Described increment upgrading plug-in unit package definition Insert, Update, three kinds of modes of Delete make up and support upgrading.
Described function file is the dex file of encrypting under the assets catalogue, and described resource file is the engineering resource file under the res catalogue.
Upgrading to function file in wrapping may further comprise the steps:
1) reads the function file of former encryption in the bag;
2) the function file after will deciphering writes on the built-in storage space in terminal;
3) dynamic loading function files classes;
4) carry out function;
5) file after the deletion deciphering.
Utilize the Dalvik virtual machine that the function file is carried out dynamic load in the said step 3.
Beneficial effect: the present invention divides the content of increment upgrading for two kinds of different files objects, and one is the function file, and two is resource file.This can let and only comprise the upgrade file of more correcting one's mistakes in the increment upgrading plug-in unit bag as far as possible.By this, the Android application program can carry out upgrading by increment on some functions and the resource, has also reduced user's wait and flow and has expended, more efficient quick.
Description of drawings
Fig. 1 is an increment upgrading process flow diagram of the present invention.
Fig. 2 is a upgrading plug-in unit workflow diagram of the present invention.
Fig. 3 is a function document upgrading process flow diagram of the present invention.
Embodiment
Below in conjunction with Figure of description content of the present invention is further detailed:
The Android application program of application developer exploitation at last can be by the compiling file distribution that to be packaged into an independent suffix be .apk.Signing messages, binary code, resource file, configuration file of application program etc. have wherein been comprised.The APK file is the zip form in fact, can be stored under the app catalogue of system when on Android, installing.The APK file of issue application program has mainly comprised with the lower part:
1. META-INF catalogue: be used to deposit signing messages.To guarantee integrality and the security of system of apk.
2. assets catalogue: be used to deposit resource file.Preserve with former form, can not pass through compiling and revise.
3. res catalogue: be used to deposit resource file.Comprise picture, character string or the like.
4. AndroidManifest.xml: the information of describing the name, version, authority or the like of application program.
5. the java byte code files of deleting after the classes.dex:Java compiling.
6. resources.arsc: the scale-of-two resource file after the compiling.
Generally speaking, software upgrading mainly is to change preceding 3 catalogues, and the corresponding contents of preceding 3 files of only need upgrading on demand when therefore upgrading gets final product.
The invention provides a kind of method, particularly, form by following steps based on the upgrading of Android application software increment:
1) compares current version and server latest edition;
2) download corresponding increment upgrading plug-in unit bag by difference in version;
3) install and move increment upgrading plug-in unit bag;
4) by the increment upgrading mode of setting in the bag, revise application package;
Wherein, the modification of application programs bag comprises to the function file modification in wrapping and to wrapping the modification of interior resource file.
Particularly; At server end function document upgrading plug-in unit bag and resource file plug-in unit upgrading plug-in unit bag are provided; And its version number is disclosed, the version number in the AndroidManifest.xml in the application software is read at the terminal that application software is installed, then with server on the version number of respective file compare; If version number is consistent, then do not download; If the version number of function file is lower than the version number on the server, then the function file is downloaded; Be lower than the version number on the server as if resource file version number, then the downloaded resources file; If all be lower than the version number on the server, then all download for two.After download finishes, utilize the file application programs in the AKU to carry out modify.
After software upgrading finished, the application package after the renewal was signed again, specifically, was the file that changes under the META-INF catalogue, to guarantee carrying out smoothly of next update.
Among the present invention, described increment upgrading plug-in unit package definition Insert, Update, three kinds of modes of Delete make up and support upgrading.Described function file is the dex file of encrypting under the assets catalogue, and described resource file is the engineering resource file under the res catalogue.
Complete substitute mode is adopted in upgrading to resource file in wrapping, promptly utilizes the interior new data of AKU that the engineering resource file under the res catalogue is replaced and gets final product, and need carry out following steps to the upgrading of function file in wrapping:
1) reads the dex file of former encryption in the bag;
2) the dex file after will deciphering writes on the built-in storage space in terminal;
3) dynamic loading function files classes;
4) carry out function;
5) file after the deletion deciphering.
In the above-mentioned steps, encrypt and be the assurance function safety of files; Using the dex file then is to be used for the Dalvik virtual machine to carry out dynamic load.But under the assets catalogue, can be directly visible source code behind the decompress(ion).If directly decipher at the Java layer, be easy to found decrypting process after the dex decompiling, therefore suggestion is deciphered at the Native layer, more guarantees safety.Certainly, the dex document storage is good in other positions, as long as can read.The dex file can not encrypted yet,
In the above-mentioned steps; It is to give Dalvik virtual machine kernel because dynamic load step afterwards must pass the path that dex file after the deciphering is write on the built-in storage space in terminal, is to be directly visible and to utilize for fear of the function files classes with the file delete after the deciphering.
Claims (6)
1. increment upgrade method based on the Android application software is characterized in that: may further comprise the steps:
1) compares current version and server latest edition;
2) download corresponding increment upgrading plug-in unit bag by difference in version;
3) install and move increment upgrading plug-in unit bag;
4) by the increment upgrading mode of setting in the bag, revise application package;
Wherein, the modification of application programs bag comprises to the function file modification in wrapping and to wrapping the modification of interior resource file.
2. a kind of increment upgrade method based on the Android application software according to claim 1 is characterized in that: the application package to after upgrading is signed again.
3. a kind of increment upgrade method based on the Android application software according to claim 1 is characterized in that: described increment upgrading plug-in unit package definition Insert, Update, three kinds of modes of Delete make up and support upgrading.
4. a kind of increment upgrade method based on the Android application software according to claim 1 is characterized in that: described function file is the dex file of encrypting under the assets catalogue, and described resource file is the engineering resource file under the res catalogue.
5. a kind of increment upgrade method based on the Android application software according to claim 1 is characterized in that: the upgrading to function file in wrapping may further comprise the steps:
1) reads the function file of former encryption in the bag;
2) the function file after will deciphering writes on the built-in storage space in terminal;
3) dynamic loading function files classes;
4) carry out function;
5) file after the deletion deciphering.
6. a kind of increment upgrade method based on the Android application software according to claim 5 is characterized in that: utilize the Dalvik virtual machine that the function file is carried out dynamic load in the said step 3.
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