CN113704195A - Android system junk file cleaning method and device - Google Patents

Android system junk file cleaning method and device Download PDF

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Publication number
CN113704195A
CN113704195A CN202110990341.8A CN202110990341A CN113704195A CN 113704195 A CN113704195 A CN 113704195A CN 202110990341 A CN202110990341 A CN 202110990341A CN 113704195 A CN113704195 A CN 113704195A
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file
files
android
junk
user
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邢志桥
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Beijing Amber Creative Technology Co ltd
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Beijing Amber Creative Technology Co ltd
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/10File systems; File servers
    • G06F16/16File or folder operations, e.g. details of user interfaces specifically adapted to file systems
    • G06F16/162Delete operations
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/10File systems; File servers
    • G06F16/17Details of further file system functions
    • G06F16/172Caching, prefetching or hoarding of files
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/10File systems; File servers
    • G06F16/17Details of further file system functions
    • G06F16/1727Details of free space management performed by the file system
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/06Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601Interfaces specially adapted for storage systems
    • G06F3/0628Interfaces specially adapted for storage systems making use of a particular technique
    • G06F3/0629Configuration or reconfiguration of storage systems
    • G06F3/0637Permissions
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/06Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601Interfaces specially adapted for storage systems
    • G06F3/0628Interfaces specially adapted for storage systems making use of a particular technique
    • G06F3/0638Organizing or formatting or addressing of data
    • G06F3/0643Management of files
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/06Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601Interfaces specially adapted for storage systems
    • G06F3/0628Interfaces specially adapted for storage systems making use of a particular technique
    • G06F3/0646Horizontal data movement in storage systems, i.e. moving data in between storage devices or systems
    • G06F3/0652Erasing, e.g. deleting, data cleaning, moving of data to a wastebasket

Abstract

A junk file cleaning method and a junk file cleaning device for an Android system are characterized in that whether a file storage right exists or not is judged, and when the file storage right does not exist, an Android API is called according to version information of the Android system to apply for the file storage right; when the file storage right exists, traversing the SD card file in a multithread mode, and scanning out the cache folders of all applications according to the application package names; after scanning and traversing the cache folder, distinguishing junk file types by the suffix names; displaying the scanning result to a user for the user to select and designate the files to be deleted, wherein the unselected files are not deleted and cleaned; and transferring a path of the file to be deleted, and calling a programming interface of the file deletion application program to delete the file specified by the user. The method and the device can help the user to scan and clean the junk files on the mobile phone quickly, increase the available storage space of the user, keep the mobile phone clean, and improve the smoothness of the long-time operation of the mobile phone.

Description

Android system junk file cleaning method and device
Technical Field
The invention relates to the technical field of system junk file processing, in particular to a method and a device for cleaning Android system junk files.
Background
The Android system, i.e., Android system, is a free and open source code operating system based on Linux kernel (not including GNU component), and is mainly used in mobile devices, such as smart phones and tablet computers. The Android system architecture is the same as the operating system, a layered architecture is adopted, the architecture is divided into four layers, and an Android application layer, an Android application framework layer, an Android system operation library layer and a Linux kernel layer are respectively arranged from high to low.
At present, many android users can suffer from the problem of mobile phone blockage, which is in great relation with mobile phone garbage generated in daily use, and mobile phones which are not cleaned for a long time can accumulate a large amount of garbage, so that the garbage seriously influences the running speed of the mobile phone and also occupies the space of the mobile phone. For example, the thumbnail files are pictures automatically cached by a program when a user browses a photo or an online picture, and are usually stored in a series of numbers as file names without suffix names, and the pictures are stored in an SD card or a storage space inside a mobile phone, which may cause the blocking of the mobile phone after long-term unclean, and affect the response time of the mobile phone. Due to the diversity and the concealment of junk files, general users are difficult to find and clear, and how to help users to realize quick junk scanning and cleaning is a technical problem to be solved urgently.
Disclosure of Invention
Therefore, the method and the device for cleaning the junk files of the Android system are provided, and can help a user to scan and clean the junk files on the mobile phone, increase the available storage space of the user, keep the mobile phone clean, and solve the problem of blockage after long-time operation.
In order to achieve the above purpose, the invention provides the following technical scheme: a junk file cleaning method for an Android system comprises the following steps:
judging whether a file storage authority is available or not, and calling an Android API (application programming interface) to apply for the authority according to version information of the Android system when the file storage authority is unavailable;
when the file storage right exists, traversing the SD card file in a multithread mode, and scanning out the cache folders of all applications according to the application package names;
after scanning and traversing the cache folders, distinguishing junk file types by suffix names, wherein the junk file types comprise apk installation package files, log files, temporary files, empty folders and large files with sizes exceeding a preset size;
displaying the scanning result to a user for the user to select and designate the files to be deleted, wherein the unselected files are not deleted and cleaned;
and transferring a path of the file to be deleted, and calling a programming interface of the file deletion application program to delete the file specified by the user.
As an optimal scheme of the garbage file cleaning method for the Android system, when the version of the Android system is more than Android 11:
and judging whether the file Storage authority is available through an environmental External Storage Manager interface.
The method is used as a preferred scheme of the Android system junk file cleaning method, whether a user authorizes an Android Data directory is judged, and if the Android Data directory is not authorized, an Android Data directory authority is requested; and when the user authorizes the Android Data directory, scanning and traversing the cache folder.
As a preferred scheme of the Android system junk file cleaning method, the multiple threads comprise an application cache scanning thread, a junk file thread and a large file thread.
As a preferred scheme of the Android system junk file cleaning method, the apk installation package file takes 'apk' as a suffix name; the log file has ". log" as suffix name; the temporary file takes ". tmp" as suffix name;
the size of the file content in the empty folder is 0; folders with a size exceeding 100M are taken as large folders.
The invention also provides an Android system junk file cleaning device, which comprises the following components:
the permission processing module is used for judging whether the file storage permission is available or not, and calling an Android API (application program interface) according to version information of an Android system to apply the permission when the file storage permission is not available;
the file traversal module is used for traversing the SD card file in a multithread mode when the file storage right exists, and scanning out the cache folders of all applications according to the application package names;
the junk file distinguishing module is used for distinguishing junk file types by suffix names after scanning and traversing the cache file folders, wherein the junk file types comprise apk installation package files, log files, temporary files, empty file folders and large files with sizes exceeding a preset size;
the scanning result processing module is used for displaying the scanning result to a user, so that the user can select and designate the files to be deleted, and the unselected files are not deleted and cleaned;
and the junk file cleaning module is used for transmitting a path of the file to be deleted and calling a file deletion application programming interface to delete the file specified by the user.
As a preferred scheme of the garbage file cleaning device for the Android system, in the permission processing module, when the version of the Android system is more than Android 11:
and judging whether the file Storage authority is available through an environmental External Storage Manager interface.
As a preferred scheme of the Android system junk file cleaning device, the permission processing module judges whether a user authorizes an Android Data directory, and requests an Android Data directory permission if the Android Data directory is unauthorized; and when the user authorizes the Android Data directory, scanning and traversing the cache folder.
As a preferred scheme of the garbage file cleaning device for the Android system, in the file traversal module, the multiple threads include an application cache scanning thread, a garbage file thread and a large file thread.
As a preferred scheme of the Android system junk file cleaning device, in the junk file distinguishing module, the apk installation package file takes 'apk' as a suffix name; the log file has ". log" as suffix name; the temporary file takes ". tmp" as suffix name;
the size of the file content in the empty folder is 0; folders with a size exceeding 100M are taken as large folders.
The invention has the following advantages: calling an Android API (application programming interface) according to version information of an Android system to apply for the permission by judging whether the Android system has the file storage permission or not when the Android system does not have the file storage permission; when the file storage right exists, traversing the SD card file in a multithread mode, and scanning out the cache folders of all applications according to the application package names; after scanning and traversing the cache folders, distinguishing junk file types by the suffix names, wherein the junk file types comprise apk installation package files, log files, temporary files, empty folders and large files with sizes exceeding a preset size; displaying the scanning result to a user for the user to select and designate the files to be deleted, wherein the unselected files are not deleted and cleaned; and transferring a path of the file to be deleted, and calling a programming interface of the file deletion application program to delete the file specified by the user. The method and the device can help the user to scan and clean the junk files on the mobile phone quickly, increase the available storage space of the user, keep the mobile phone clean, and improve the smoothness of the long-time operation of the mobile phone.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so that those skilled in the art can understand and read the present invention, and do not limit the conditions for implementing the present invention, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the functions and purposes of the present invention, should still fall within the scope of the present invention.
Fig. 1 is a schematic flowchart of a method for cleaning junk files of an Android system according to an embodiment of the present invention;
fig. 2 is a schematic technical route diagram of a junk file cleaning method for an Android system provided in an embodiment of the present invention;
fig. 3 is a schematic diagram of an Android system junk file cleaning device architecture provided in an embodiment of the present invention.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 and 2, a method for cleaning junk files in an Android system is provided, which includes the following steps:
s1, judging whether the file storage authority is available or not, and calling an Android API to apply for the authority according to the version information of the Android system when the file storage authority is unavailable;
s2, when the file storage right exists, traversing the SD card file in a multithread mode, and scanning out the cache folders of all applications according to the application package names;
s3, after scanning and traversing the cache folders, distinguishing junk file types by suffix names, wherein the junk file types comprise apk installation package files, log files, temporary files, empty folders and large files with sizes exceeding a preset size;
s4, displaying the scanning result to a user for the user to select and designate the files to be deleted, wherein the unselected files are not deleted and cleaned;
and S5, introducing a path of the file to be deleted, and calling a file deletion application programming interface to delete the file specified by the user.
In this embodiment, when the version of the Android system is more than Android 11:
and judging whether the file Storage authority is available through an environmental External Storage Manager interface.
Specifically, the Android11 is implemented by the following codes:
Figure BDA0003232093340000052
in this embodiment, an Android API is called according to version information of an Android system to apply for an authority, and the authority is implemented by the following codes:
Figure BDA0003232093340000051
Figure BDA0003232093340000061
in the embodiment, whether a user authorizes an Android Data directory is judged, and if the Android Data directory is not authorized, an Android Data directory authority is requested; and when the user authorizes the Android Data directory, scanning and traversing the cache folder.
Specifically, above Android11, for the reason of partition storage, special authorization processing needs to be performed on the cache folder, and the method is implemented through the following codes:
Figure BDA0003232093340000062
Figure BDA0003232093340000071
and returning secondary authorization after the authorization of the user is agreed, and realizing through the following codes:
Figure BDA0003232093340000072
in this embodiment, the multiple threads include an application cache scanning thread, a garbage file thread, and a large file thread. The apk installation package file takes 'apk' as a suffix name; the log file has ". log" as suffix name; the temporary file takes ". tmp" as suffix name; the size of the file content in the empty folder is 0; folders with a size exceeding 100M are taken as large folders.
Specifically, in the application cache scanning, the application cache is composed of a/data/data/pkgname/cache folder and a/SD card/Android/data/packagename/cache folder; the first folder is maintained in the system, cannot be obtained at the present stage, and only the second cache folder can be scanned and cleaned.
The Android11 needs to authorize all file access rights and to authorize the/SD card/Android/data/directory to normally access, and the specific implementation is to traverse the/SD card/Android/data/directory and scan out the cache folders of each application according to the application package name.
In this embodiment, the implementation code of the application cache is as follows:
Figure BDA0003232093340000073
Figure BDA0003232093340000081
Figure BDA0003232093340000091
Figure BDA0003232093340000101
Figure BDA0003232093340000111
in this embodiment, after scanning and traversing the cache folder, implementation codes for distinguishing garbage file types by suffix names are as follows:
Figure BDA0003232093340000112
Figure BDA0003232093340000121
Figure BDA0003232093340000131
in this embodiment, after the scanning is finished, the scanning result is displayed to the user, the user selects and designates the file to be deleted, and the unselected files are not deleted and cleaned. The implementation code is as follows:
Figure BDA0003232093340000132
Figure BDA0003232093340000141
Figure BDA0003232093340000151
Figure BDA0003232093340000161
Figure BDA0003232093340000171
Figure BDA0003232093340000181
Figure BDA0003232093340000191
in summary, the method and the device call the Android API according to the version information of the Android system to apply for the permission by judging whether the file storage permission exists or not when the file storage permission does not exist; when the file storage right exists, traversing the SD card file in a multithread mode, and scanning out the cache folders of all applications according to the application package names; after scanning and traversing the cache folders, distinguishing junk file types by the suffix names, wherein the junk file types comprise apk installation package files, log files, temporary files, empty folders and large files with sizes exceeding a preset size; displaying the scanning result to a user for the user to select and designate the files to be deleted, wherein the unselected files are not deleted and cleaned; and transferring a path of the file to be deleted, and calling a programming interface of the file deletion application program to delete the file specified by the user. The method and the device can help the user to scan and clean the junk files on the mobile phone quickly, increase the available storage space of the user, keep the mobile phone clean, and improve the smoothness of the long-time operation of the mobile phone.
Referring to fig. 3, an embodiment of the present invention further provides an Android system junk file cleaning device, including:
the permission processing module 1 is used for judging whether the file storage permission is available or not, and calling an Android API (application programming interface) according to version information of an Android system to apply the permission when the file storage permission is not available;
the file traversing module 2 is used for traversing the SD card file in a multithread manner when the file storage right exists, and scanning out the cache folders of all applications according to the application package names;
the junk file distinguishing module 3 is used for distinguishing junk file types by suffix names after scanning and traversing the cache file folders, wherein the junk file types comprise apk installation package files, log files, temporary files, empty file folders and large files with sizes exceeding a preset size;
the scanning result processing module 4 is used for displaying the scanning result to the user, so that the user can select and designate the files to be deleted, and the unselected files are not deleted and cleaned;
and the junk file cleaning module 5 is used for transmitting a path of the file to be deleted and calling a file deletion application programming interface to delete the file specified by the user.
In this embodiment, in the permission processing module 1, when the version of the Android system is more than Android 11:
and judging whether the file Storage authority is available through an environmental External Storage Manager interface.
In this embodiment, in the authority processing module 1, it is determined whether a user authorizes an Android Data directory, and if the Android Data directory is not authorized, an Android Data directory authority is requested; and when the user authorizes the Android Data directory, scanning and traversing the cache folder.
In this embodiment, in the file traversal module 2, the multiple threads include an application cache scanning thread, a garbage file thread, and a large file thread. In the garbage file distinguishing module, the apk installation package file takes 'apk' as a suffix name; the log file has ". log" as suffix name; the temporary file takes ". tmp" as suffix name;
the size of the file content in the empty folder is 0; folders with a size exceeding 100M are taken as large folders.
It should be noted that, because the contents of information interaction, execution process, and the like between the modules/units of the apparatus are based on the same concept as the method embodiment of the present application, the technical effect brought by the contents is the same as the method embodiment of the present application, and specific contents may refer to the description in the foregoing method embodiment of the present application, and are not described herein again.
It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims (10)

1. A junk file cleaning method for an Android system is characterized by comprising the following steps:
judging whether a file storage authority is available or not, and calling an Android API (application programming interface) to apply for the authority according to version information of the Android system when the file storage authority is unavailable;
when the file storage right exists, traversing the SD card file in a multithread mode, and scanning out the cache folders of all applications according to the application package names;
after scanning and traversing the cache folders, distinguishing junk file types by suffix names, wherein the junk file types comprise apk installation package files, log files, temporary files, empty folders and large files with sizes exceeding a preset size;
displaying the scanning result to a user for the user to select and designate the files to be deleted, wherein the unselected files are not deleted and cleaned;
and transferring a path of the file to be deleted, and calling a programming interface of the file deletion application program to delete the file specified by the user.
2. The method for cleaning junk files in the Android system as claimed in claim 1, wherein when the version of the Android system is more than Android 11:
and judging whether the file Storage authority is available through an environmental External Storage Manager interface.
3. The method for cleaning the junk files of the Android system as recited in claim 1, wherein the method comprises the steps of judging whether a user authorizes an Android Data directory, and requesting an Android Data directory authority if the Android Data directory is not authorized; and when the user authorizes the Android Data directory, scanning and traversing the cache folder.
4. The Android system garbage file cleaning method according to claim 1, wherein the multiple threads comprise an application cache scanning thread, a garbage file thread and a large file thread.
5. The Android system garbage file cleaning method according to claim 4, wherein the apk installation package file takes ". apk" as a suffix name; the log file has ". log" as suffix name; the temporary file takes ". tmp" as suffix name;
the size of the file content in the empty folder is 0; folders with a size exceeding 100M are taken as large folders.
6. The utility model provides an Android system rubbish file cleaning device which characterized in that includes:
the permission processing module is used for judging whether the file storage permission is available or not, and calling an Android API (application program interface) according to version information of an Android system to apply the permission when the file storage permission is not available;
the file traversal module is used for traversing the SD card file in a multithread mode when the file storage right exists, and scanning out the cache folders of all applications according to the application package names;
the junk file distinguishing module is used for distinguishing junk file types by suffix names after scanning and traversing the cache file folders, wherein the junk file types comprise apk installation package files, log files, temporary files, empty file folders and large files with sizes exceeding a preset size;
the scanning result processing module is used for displaying the scanning result to a user, so that the user can select and designate the files to be deleted, and the unselected files are not deleted and cleaned;
and the junk file cleaning module is used for transmitting a path of the file to be deleted and calling a file deletion application programming interface to delete the file specified by the user.
7. The Android system garbage file cleaning device of claim 6, wherein, in the permission processing module, when the version of the Android system is more than Android 11:
and judging whether the file Storage authority is available through an environmental External Storage Manager interface.
8. The device for cleaning junk files of Android systems as claimed in claim 6, wherein the permission processing module is configured to determine whether the user authorizes the Android Data directory, and if the Android Data directory is not authorized, request permission for the Android Data directory; and when the user authorizes the Android Data directory, scanning and traversing the cache folder.
9. The Android system garbage file cleaning device of claim 6, wherein in the file traversal module, the multiple threads include an application cache scanning thread, a garbage file thread, and a large file thread.
10. The Android system garbage file cleaning device of claim 9, wherein in the garbage file distinguishing module, the apk installation package file takes ". apk" as a suffix name; the log file has ". log" as suffix name; the temporary file takes ". tmp" as suffix name;
the size of the file content in the empty folder is 0; folders with a size exceeding 100M are taken as large folders.
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