CN106777332B - System and method for finding folder where file is located through file identification in Android terminal - Google Patents
System and method for finding folder where file is located through file identification in Android terminal Download PDFInfo
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- CN106777332B CN106777332B CN201710021374.5A CN201710021374A CN106777332B CN 106777332 B CN106777332 B CN 106777332B CN 201710021374 A CN201710021374 A CN 201710021374A CN 106777332 B CN106777332 B CN 106777332B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/10—File systems; File servers
- G06F16/13—File access structures, e.g. distributed indices
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/10—File systems; File servers
- G06F16/16—File or folder operations, e.g. details of user interfaces specifically adapted to file systems
- G06F16/168—Details of user interfaces specifically adapted to file systems, e.g. browsing and visualisation, 2d or 3d GUIs
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Abstract
The invention relates to a system and a method for finding a folder where a file is located in an Android terminal through a file identifier. The method and the device avoid the problems that when an Android terminal user wants to browse a certain application program file, the file browser needs to be opened first and then searched in sequence according to the name of the application program, and when the user wants to clear the file received by software such as instant messaging and the like, the user needs to enter the file browser and search in sequence, so that time and energy are wasted, and the purposes of bringing convenience to the user and improving user experience are really achieved.
Description
Technical Field
The invention relates to a system and a method for finding a folder where a file is located through a file identifier in an Android terminal, and belongs to the technical field of information processing.
Background
With the continuous development of the Android operating system, the Android operating system is popular all the way, and now the Android operating system not only becomes the first large operating system of a mobile terminal, but also has unusual performances in the fields of intelligent vehicle-mounted systems, robot operating systems and VR.
Although the Android system has been so popular and mature, there are still shortcomings in file manipulation. On one hand, when an Android terminal user wants to browse a storage folder where a certain application program is located, only an installed file browser can be opened, then folders in the browser are searched one by one according to the name of the application program to find out the corresponding application program folder, but the user can conveniently click a right key and then select to open the folder where the file is located like using a PC (personal computer); on the other hand, when a user uses instant messaging software such as WeChat or QQ, files such as pictures, videos and office files need to be received, after the files are received, the files are not cleaned in time for standby, so that the user forgets to clean certain useless files, the useless files in the Android terminal of the user are more and more, the user knows that the storage resources of the Android terminal are very precious for the user, the useless files occupy the precious resources of the user, the Android terminal storage space of the user is easily insufficient, in addition, folders for storing the received files by application software such as instant messaging and the like are set in a program, the folders for storing the files have no obvious marks with practical meanings, the user needs to spend much time and energy to search and clean the useless files from one folder to another in a file browser, this is unacceptable to the user, greatly reducing the user experience. Therefore, a solution is urgently needed, so that an Android terminal user can quickly find out a folder where an installed application program file is located, the Android terminal user can conveniently open the folder where the file is located from a window in instant messaging software through a file identifier, and useless files are cleared in time.
Disclosure of Invention
Aiming at the defects of the prior art, the invention discloses a system for finding a folder where a file is located through a file identifier in an Android terminal;
the invention also discloses a method for finding the folder where the file is located through the file identification in the Android terminal.
The method and the system enable the Android terminal user to quickly find the folder where the installed application program file is located, enable the Android terminal user to conveniently open the folder where the file is located from the window in the instant messaging software through the file identification, and timely clear useless files. The method and the device avoid the problems that when an Android terminal user wants to browse a certain application program file, the file browser needs to be opened first and then searched by file folders according to the application program name, and when the user wants to clear the file received by software such as instant messaging and the like, the user needs to enter the file browser and then search by file folders, time and energy are wasted, and the purposes of bringing convenience to the user and improving user experience are really achieved.
Interpretation of terms:
1. the hash algorithm maps a binary value of an arbitrary length to a binary value of a shorter fixed length, and this small binary value is called a hash value. Hash values are a unique and extremely compact representation of a piece of data as a value. If a piece of plaintext is hashed and even if only one letter of the piece is altered, the subsequent hash will produce a different value. It is computationally infeasible to find two different inputs whose hash is the same value, so the hash value of the data can verify the integrity of the data. Typically for fast lookup and encryption algorithms.
2. MD5 values, i.e., hash values;
the technical scheme of the invention is as follows:
a system for finding a folder where a file is located through a file identifier in an Android terminal comprises the following steps: the file storing path information acquiring module, the file storing path information storing module, the file storing path information acquiring module, the file storing path information transmitting module, the file storing path information receiving module and the file folder opening module are sequentially connected; after the obtaining module of the unique file identifier calculates the MD5 value of the file through a Hash algorithm, the MD5 value of the file is taken as a key, the directory path when the file is downloaded or installed is taken as a value, the file storage path information is stored in the saving module of the file storage path information, then the obtaining module of the file storage path information calculates the MD5 value of the file through the obtaining module of the unique file identifier, the MD5 value of the file is taken as a key, the file storage path information is obtained from the saving module of the file storage path information, then the file storage path information is transmitted to the receiving module of the file storage path information through the transmission module of the file storage path information, after the receiving module of the file storage path information receives the file storage path information, the obtained storage path information of the file is analyzed through the opening module of the folder where the file is located, and a corresponding folder file is read, the corresponding folder file is presented to the user.
The acquisition module of the file unique identifier is used for: calculating the MD5 value of the corresponding file through a Hash algorithm; the corresponding file refers to an application program file of a folder in which a user wants to view or a file downloaded by other application programs; other applications include WeChat, QQ, etc.;
the storage module of the file storage path information is used for: creating a storage file by using a lightweight storage class SharedPreferences in Android under a/data/data/< package name >/shared _ prefs directory locally stored in the Android, wherein the storage file stores information by taking an MD5 value of a certain file as a key and taking a directory path of the file during downloading or application installation as a value, and the storage file stores storage path information of an application program file of a folder where a user wants to view or a file downloaded by other application programs;
the file storage path information acquisition module is used for: acquiring the MD5 value of the corresponding file by using the acquisition module of the unique file identifier, and acquiring the storage path information of the file from the storage module of the file storage path information by taking the MD5 value as a key;
the transmission module of the file storage path information is used for: sending a broadcast with a special Action in an application program (such as QQ or WeChat) requesting to open a folder where a file is located, wherein a messenger Intent in the broadcast with the special Action stores the storage path information of the file acquired by an acquisition module of the storage path information of the file;
the receiving module of the file storage path information is used for: a broadcast receiver is statically registered in a local file browser and receives a broadcast of a set special Action sent by a transmission module of the file storage path information;
the opening module of the folder where the file is located is used for: and after the receiving module of the file storage path information receives the broadcast sent by the transmission module of the file storage path information, the file storage path information stored in the messenger Intent in the broadcast is taken out, a local file browser is started, the files in the corresponding folder are analyzed and read, and the files in the corresponding folder are presented to the user.
A method for finding a folder where a file is located through a file identifier in an Android terminal comprises the following steps:
(1) statically registering a broadcast receiver in a local file browser, wherein the broadcast receiver receives a broadcast with a special Action set;
(2) when a user downloads a required file in other applications or the user installs a required application program file, the required file downloaded by the user or the required application program file installed by the user is stored in a corresponding folder;
(3) calculating an MD5 value corresponding to the downloaded required file or the installed required application program file by using a Hash algorithm;
(4) creating a SharedPreferences file under a/data/data/< package name >/shared _ prefs directory locally stored in Android by using a lightweight storage class SharedPreferences in an Android terminal, and storing the SharedPreferences file in a value of an MD5 value corresponding to a downloaded required file or an installed required application file as a key and a storage path corresponding to the downloaded required file or the installed required application file as a value;
(5) when an Android terminal user wants to browse a storage folder where a certain application program file is located or open a folder where a file received by instant messaging software is located, the certain application program file or the file received by the instant messaging software is processed through the steps (1) to (4); and C, long-time pressing an icon corresponding to the file, selecting to open a folder where the file is located, namely executing the steps A to D, wherein the steps comprise:
A. calculating an MD5 value corresponding to the requested file or application program file through a Hash algorithm, and acquiring a storage path of the requested file or application program file in the SharedPreferences file by taking the MD5 value as a key;
B. sending a broadcast with a special Action in a corresponding application program or instant messaging software, so that only a file browser registered with a broadcast receiver containing the special Action can receive the broadcast, and a messenger Intent in the broadcast stores a storage path of the file or the application program file acquired in the step A;
C. after a static broadcast receiver registered in a file browser receives a broadcast, taking out a storage path of the file or the application program file acquired in the step A and stored in Intent in the broadcast;
D. and starting a file browser, analyzing the storage path information of the acquired file or application program file, reading the file in the corresponding folder, and presenting the file in the corresponding folder to a user.
According to the present invention, preferably, the icon corresponding to the file refers to: for a required application program file installed by a user, an icon corresponding to the file refers to an application program icon of an application program on an Android terminal UI interface; for files downloaded by a user in other application programs (such as WeChat, QQ and the like), the icon corresponding to the file refers to the icon corresponding to the successfully downloaded file.
The invention has the beneficial effects that:
the method and the system enable the Android terminal user to quickly find the folder where the installed application program file is located, enable the Android terminal user to conveniently open the folder where the file is located from the window in the instant messaging software through the file identification, and timely clear useless files.
Drawings
Fig. 1 is a schematic flowchart of a method for finding a folder in which a file is located through a file identifier in an Android terminal according to the present invention;
FIG. 2 is a structural block diagram of a system for finding a folder where a file is located through a file identifier in an Android terminal according to the invention;
Detailed Description
The invention is further defined in the following, but not limited to, the figures and examples in the description.
Example 1
A system for finding a folder where a file is located through a file identifier in an Android terminal comprises the following steps: the file storing path information acquiring module, the file storing path information storing module, the file storing path information acquiring module, the file storing path information transmitting module, the file storing path information receiving module and the file folder opening module are sequentially connected; as shown in fig. 2, after the obtaining module of the unique file identifier calculates the MD5 value of the file by the Hash algorithm, the MD5 value of the file is used as a key, and the directory path of the file during downloading or application installation is used as a value, the file storage path information is stored in the saving module of the file storage path information, then after the obtaining module of the file unique identifier calculates the MD5 value of the file, the MD5 value of the file is used as a key, the file storage path information is obtained from the saving module of the file storage path information, then the file storage path information is transmitted to the receiving module of the file storage path information by the transmission module of the file storage path information, after the receiving module of the file storage path information receives the file storage path information, the obtained storage path information is analyzed by the opening module of the folder in which the file is located, reading out the corresponding folder file, and presenting the corresponding folder file to a user.
The acquisition module of the file unique identifier is used for: calculating the MD5 value of the corresponding file through a Hash algorithm; the corresponding file refers to an application program file of a folder in which a user wants to view or a file downloaded by other application programs; other applications include WeChat, QQ, etc.;
the storage module of the file storage path information is used for: creating a storage file by utilizing a lightweight storage class SharedPreferences in Android under a/data/data/< package name >/shared _ prefs directory locally stored in the Android, wherein the storage file stores information by taking an MD5 value of a certain file as a key and taking a directory path of the file during downloading or application installation as a value, and the storage file stores storage path information of an application program file which a user wants to view a folder where the user is located or a file downloaded by other application programs;
the file storage path information acquisition module is used for: acquiring the MD5 value of the corresponding file by using an acquisition module of the unique file identifier, and acquiring the storage path information of the file from a storage module of the file storage path information by taking the MD5 value as a key;
the transmission module of the file storage path information is used for: sending a broadcast with a special Action in an application program (such as QQ or WeChat) requesting to open a folder where a file is located, wherein the messenger Intent in the broadcast with the special Action stores the storage path information of the file acquired by an acquisition module of the storage path information of the file;
the receiving module of the file storage path information is used for: statically registering a broadcast receiver in a local file browser, wherein the broadcast receiver receives a broadcast of a set special Action sent by a transmission module of file storage path information;
the opening module of the folder where the file is located is used for: and after the receiving module of the file storage path information receives the broadcast sent by the transmission module of the file storage path information, the file storage path information stored in the messenger Intent in the broadcast is taken out, a local file browser is started, the files in the corresponding folders are analyzed and read, and the files in the corresponding folders are presented to the user.
Example 2
A method for finding a folder where a file is located through a file identifier in an Android terminal is disclosed, as shown in FIG. 1, and comprises the following steps:
(1) statically registering a broadcast receiver in a local file browser, wherein the broadcast receiver receives a broadcast with a special Action set;
(2) when a user downloads a required file in other applications or the user installs a required application program file, the required file downloaded by the user or the required application program file installed by the user is stored in a corresponding folder;
(3) calculating an MD5 value corresponding to the downloaded required file or the installed required application program file by using a Hash algorithm;
(4) creating a SharedPreferences file under a/data/data/< package name >/shared _ prefs directory locally stored in Android by using a lightweight storage class SharedPreferences in an Android terminal, and storing the SharedPreferences file in a value of an MD5 value corresponding to a downloaded required file or an installed required application file as a key and a storage path corresponding to the downloaded required file or the installed required application file as a value;
(5) when an Android terminal user wants to browse a storage folder where a certain application program file is located or open a folder where a file received by instant messaging software is located, the certain application program file or the file received by the instant messaging software is processed through the steps (1) to (4); and C, long-time pressing an icon corresponding to the file, selecting to open a folder where the file is located, namely executing the steps A to D, wherein the steps comprise: the icons corresponding to the files refer to: for a required application program file installed by a user, an icon corresponding to the file refers to an application program icon of an application program on an Android terminal UI interface; for files downloaded by a user in other application programs (such as WeChat, QQ and the like), the icon corresponding to the file refers to the icon corresponding to the successfully downloaded file.
A. Calculating an MD5 value corresponding to the requested file or application program file through a Hash algorithm, and acquiring a storage path of the requested file or application program file in the SharedPreferences file by taking the MD5 value as a key;
B. sending a broadcast with a special Action in a corresponding application program or instant messaging software, so that only a file browser registered with a broadcast receiver containing the special Action can receive the broadcast, and a messenger Intent in the broadcast stores a storage path of the file or the application program file acquired in the step A;
C. after a static broadcast receiver registered in a file browser receives a broadcast, taking out a storage path of the file or the application program file acquired in the step A and stored in Intent in the broadcast;
D. and starting a file browser, analyzing the storage path information of the acquired file or application program file, reading the file in the corresponding folder, and presenting the file in the corresponding folder to a user.
Claims (3)
1. A system for finding a folder where a file is located through a file identifier in an Android terminal is characterized by comprising: the file storing path information acquiring module, the file storing path information storing module, the file storing path information acquiring module, the file storing path information transmitting module, the file storing path information receiving module and the file folder opening module are sequentially connected;
the acquisition module of the file unique identifier is used for: calculating the MD5 value of the corresponding file through a Hash algorithm; the corresponding file refers to an application program file of a folder in which a user wants to view or a file downloaded by other application programs;
the storage module of the file storage path information is used for: creating a storage file by using a lightweight storage class SharedPreferences in Android under a/data/data/< package name >/shared _ prefs directory locally stored in the Android, wherein the storage file stores information by taking an MD5 value of a certain file as a key and taking a directory path of the file during downloading or application installation as a value, and the storage file stores storage path information of an application program file of a folder where a user wants to view or a file downloaded by other application programs;
the file storage path information acquisition module is used for: acquiring the MD5 value of the corresponding file by using the acquisition module of the unique file identifier, and acquiring the storage path information of the file from the storage module of the file storage path information by taking the MD5 value as a key;
the transmission module of the file storage path information is used for: sending a broadcast with a special Action in an application program of a folder where a file is requested to be opened, wherein a messenger Intent in the broadcast with the special Action stores the storage path information of the file acquired by an acquisition module of the file storage path information;
the receiving module of the file storage path information is used for: a broadcast receiver is statically registered in a local file browser and receives a broadcast of a set special Action sent by a transmission module of the file storage path information;
the opening module of the folder where the file is located is used for: and after the receiving module of the file storage path information receives the broadcast sent by the transmission module of the file storage path information, the file storage path information stored in the messenger Intent in the broadcast is taken out, a local file browser is started, the files in the corresponding folder are analyzed and read, and the files in the corresponding folder are presented to the user.
2. A method for finding a folder where a file is located through a file identifier in an Android terminal is characterized by comprising the following steps:
(1) statically registering a broadcast receiver in a local file browser, wherein the broadcast receiver receives a broadcast with a special Action set;
(2) when a user downloads a required file in other applications or the user installs a required application program file, the required file downloaded by the user or the required application program file installed by the user is stored in a corresponding folder;
(3) calculating an MD5 value corresponding to the downloaded required file or the installed required application program file by using a Hash algorithm;
(4) creating a SharedPreferences file under a/data/data/< package name >/shared _ prefs directory locally stored in Android by using a lightweight storage class SharedPreferences in an Android terminal, and storing the SharedPreferences file in a value of an MD5 value corresponding to a downloaded required file or an installed required application file as a key and a storage path corresponding to the downloaded required file or the installed required application file as a value;
(5) when an Android terminal user wants to browse a storage folder where a certain application program file is located or open a folder where a file received by instant messaging software is located, the certain application program file or the file received by the instant messaging software is processed through the steps (1) to (4); and C, long-time pressing an icon corresponding to the file, selecting to open a folder where the file is located, namely executing the steps A to D, wherein the steps comprise:
A. calculating an MD5 value corresponding to the requested file or application program file through a Hash algorithm, and acquiring a storage path of the requested file or application program file in the SharedPreferences file by taking the MD5 value as a key;
B. sending a broadcast with a special Action in a corresponding application program or instant messaging software, so that only a file browser registered with a broadcast receiver containing the special Action can receive the broadcast, and a messenger Intent in the broadcast stores a storage path of the file or the application program file acquired in the step A;
C. after a static broadcast receiver registered in a file browser receives a broadcast, taking out a storage path of the file or the application program file acquired in the step A and stored in Intent in the broadcast;
D. and starting a file browser, analyzing the storage path information of the acquired file or application program file, reading the file in the corresponding folder, and presenting the file in the corresponding folder to a user.
3. The method for finding the folder where the file is located through the file identifier in the Android terminal according to claim 2, wherein the icon corresponding to the file refers to: for a required application program file installed by a user, an icon corresponding to the file refers to an application program icon of an application program on an Android terminal UI interface; for files downloaded by a user in other application programs, the icon corresponding to the file refers to the icon corresponding to the successfully downloaded file.
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| CN107729437B (en) * | 2017-09-29 | 2021-05-28 | 深圳市沃特沃德股份有限公司 | Method and device for processing file storage path |
| CN112399006B (en) * | 2020-10-28 | 2022-09-16 | 维沃移动通信（杭州）有限公司 | File sending method and device and electronic equipment |
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| CN101409905A (en) * | 2007-10-08 | 2009-04-15 | 北京邮电大学 | Routing method for mobile multi-hop grouping wireless network based on random broadcast mode |
| CN104994481A (en) * | 2015-07-10 | 2015-10-21 | 上海斐讯数据通信技术有限公司 | Method and system for transceiving broadcast messages between application programs in Android system |
| CN105786805A (en) * | 2014-12-15 | 2016-07-20 | 乐视移动智能信息技术（北京）有限公司 | Intelligent mobile terminal, document manager and file display method of same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011150693A (en) * | 2009-12-22 | 2011-08-04 | Tani Electronics Corp | Information management system, information management method and apparatus, and encryption method and program |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101409905A (en) * | 2007-10-08 | 2009-04-15 | 北京邮电大学 | Routing method for mobile multi-hop grouping wireless network based on random broadcast mode |
| CN105786805A (en) * | 2014-12-15 | 2016-07-20 | 乐视移动智能信息技术（北京）有限公司 | Intelligent mobile terminal, document manager and file display method of same |
| CN104994481A (en) * | 2015-07-10 | 2015-10-21 | 上海斐讯数据通信技术有限公司 | Method and system for transceiving broadcast messages between application programs in Android system |
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