CN104090822A - Method and system for switching external storage devices under Android system - Google Patents
Method and system for switching external storage devices under Android system Download PDFInfo
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- CN104090822A CN104090822A CN201410329829.6A CN201410329829A CN104090822A CN 104090822 A CN104090822 A CN 104090822A CN 201410329829 A CN201410329829 A CN 201410329829A CN 104090822 A CN104090822 A CN 104090822A
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Abstract
The invention provides a method and system for switching external storage devices under the Android system. The method comprises the steps that firstly, a user selects a main external storage device from the external storage devices; then, all the external storage devices are unloaded from mounting points; after the external storage device selected by the user serves as the main external storage device, a new storage device configuration list is generated, and the external storage devices are remounted. Thus, the defects that in the prior art, the main external storage device is a fixed one and the other slave external storage devices only can serve as a catalogue to be mounted under the main external storage device to be used under the Android system are overcome, the user can store information better through the multiple external storage devices when using the Android system, the utilization rate of a storage memory is increased, and the requirement of the user for the larger storage space is better met.
Description
Technical field
The present invention relates to moving communicating field, in particular changing method and the system of External memory equipment under a kind of Android system.
Background technology
Android(Chinese is called Android) be one and be mainly used in mobile device taking Linux as basic open source code operating system, the Open Handset Alliance(OHA being set up by Google, open handheld device alliance) continue leader and develop.The latest edition that Android has issued is Android 4.3.Android system is at first by An Dilubin (Andy Rubin) exploitation and composition, and the object of developing at first this system is to utilize it to create " smart mobile phone " ecosphere that can surf the Net with PC.But afterwards, smart mobile phone market started Fast Growth, Android is transformed into a operating system towards mobile phone.Purchased by U.S. science-and-technology enterprise Google in August, 2005.In November, 2007, Google and 84 hardware manufacturer, software developer and telecommunications operators set up open handheld device alliance and jointly research and develop improvement Android system, subsequently, Google, with the open for free authorization of source code licence of Apache, has issued the source code of Android.Allow manufacturer release the smart mobile phone that carries Android, Android operating system was extended on panel computer and other field afterwards more gradually.
(SuSE) Linux OS is all managed all in system as file.In linux system, hardware device, disk partition etc. is considered file, is exactly to read and write corresponding file to the access of equipment, subregion.In fact mount point is exactly the entrance catalogue of the disk file system in Linux, and an equipment need to have corresponding mount point to conduct interviews to it.
Android compatibility specification definition (Android Compatibility Definition) regulation: the equipment of each compatible Android is supported one shared " external memory storage ", can carry out store files with it.To be stored in file in external memory storage be all world-readable attribute and can be revised by user (when they allow the large reservoir of USB on computers when the staged files).If the file being stored on external memory storage is that meeting disappearance is sightless---user hangs over external memory storage on a computer or removes this medium (SD card), and the file that you are stored on external storage does not simultaneously have compulsory safety assurance.All applications can read and write these files and user also can delete them.
" external memory storage " can be storage medium (a for example SD card) or an internal storage (can not be removed) that can be removed.At present, the mode that each large mobile-phone manufacturers realize external memory storage has three kinds: physical store medium (SD card), divide out the internal storage of independent partitions and the simulation external memory storage of shared internal storage from ROM.Equipment must be realized above a kind of mode be mounted to/sdcard as main external memory storage, could be for application program.
At present, some mobile-phone manufacturers tend to realize the implementation of two kinds of external memory storages, but, because the characteristic of Android can only be used an external memory devices as " main external memory storage ", and " from external memory storage " equipment of realizing in addition can only be mounted to as catalogue use " main external memory storage ", the space of the utilization " from external memory storage " that application program cannot be complete in this case---due to compatible api interface problem, application program cannot know whether equipment has realized " from external memory storage " and carry how in advance.
Therefore, prior art awaits further improvement.
Summary of the invention
In view of above-mentioned weak point of the prior art, the object of the invention is to for user provides the changing method between memory device and system under a kind of Android system, can only use the problem of a fixing main External memory equipment to solve Android system in prior art.
The technical scheme that technical solution problem of the present invention adopts is as follows:
A changing method for External memory equipment under Android system, wherein, comprising:
Receiving user selects in External memory equipment, after any one switching command as main External memory equipment, to unload the memory device on the corresponding mount point of all External memory equipments;
The memory device that user selects is set to main External memory equipment; Generate new storage device configurations list, and according to new storage device configurations list, the External memory equipment under Android system is mounted on corresponding mount point, complete the switching between principal and subordinate's External memory equipment.
The changing method of External memory equipment under described Android system, wherein, in reception user selects External memory equipment, before any one instruction as main External memory equipment, also comprise, the configured list of all External memory equipments and master slave relation are shown.
The changing method of External memory equipment under described Android system, wherein, comprise, receiving user selects in External memory equipment after any one instruction as main External memory equipment, whether the application program of switching between execution principal and subordinate External memory equipment is had to the authority of switching and carry out verification, unload the operation of the memory device on the corresponding mount point of all External memory equipments if there is the authority of switching, if do not there is terminating operation of the authority of switching.
The changing method of External memory equipment under described Android system, wherein, also comprise, when after the memory device on the corresponding mount point of all External memory equipments of unloading, send and whether confirm the prompting of switching between outside principal and subordinate's memory device, if confirm described prompting, carry out described blocked operation, otherwise abandon this operation.
The changing method of External memory equipment under described Android system, wherein, the memory device that user is selected is as the operation of main External memory equipment time, and amendment External memory equipment configured list is also preserved new configured list.
A switched system for External memory equipment under Android system, wherein, comprising:
Equipment Unload module, selects, after instruction that any memory device of External memory equipment is main External memory equipment, to unload the memory device on the corresponding mount point of all External memory equipments for receiving user;
Hand-off process module,, and is mounted to External memory equipment on corresponding mount point according to new storage device configurations list as main External memory equipment for memory device that user is selected, completes the switching between principal and subordinate's External memory equipment.
The switched system of External memory equipment under described Android system, wherein, also comprises that list shows selection module;
Described list shows selects module, for receiving before user selects any one instruction as main storage device of External memory equipment, the configured list of all External memory equipments and master slave relation is shown.
The switched system of External memory equipment under described Android system, wherein, also comprises authorization check module;
Described authorization check module, select after any one instruction as main External memory equipment of External memory equipment for receiving user, whether the application program of switching between execution principal and subordinate External memory equipment is had to the authority of switching and carry out verification, unload the operation of the memory device on the corresponding mount point of all External memory equipments if there is the authority of switching, if do not there is terminating operation of the authority of switching.
Under described Android system, the switched system of External memory equipment, wherein, also comprises, confirms handover module;
Described confirmation handover module, be used for when after the memory device on the corresponding mount point of all External memory equipments of storage device processes program unloading, send and whether confirm the prompting of switching between principal and subordinate's External memory equipment, if confirm described prompting, carry out described blocked operation, otherwise abandon this operation.
The switched system of External memory equipment under described Android system, wherein, also comprises configured list update module;
Described configured list update module, for memory device that user is selected, as the operation of main External memory equipment time, amendment External memory equipment configured list is also preserved new configured list.
Beneficial effect, changing method and the system of External memory equipment under Android system provided by the present invention, first from External memory equipment, select a main External memory equipment by user, then whole External memory equipments is unloaded from mount point, memory device in user selects is after main External memory equipment, generate new storage device configurations list, External memory equipment is re-started to carry, thereby overcome main External memory equipment under prior art Android system and be fixed as one, and other can only be mounted to the defect using main peripheral storage device as catalogue from External memory equipment, make user in the time using Android system, can better utilize multiple External memory equipments to carry out information storage, in improving stored memory utilization rate, better meet the demand of people to more storage spaces.
Brief description of the drawings
Fig. 1 is the flow chart of steps of the changing method of peripheral storage device under Android system of the present invention.
Fig. 2 is the changing method of peripheral storage device under Android system of the present invention most preferred embodiment schematic diagram in the time of concrete application.
Fig. 3 is the structure principle chart of the switched system of peripheral storage device under Android system of the present invention.
Fig. 4 is the structural representation that the switched system of peripheral storage device under Android system of the present invention is in concrete application.
Embodiment
For making object of the present invention, technical scheme and advantage clearer, clear and definite, developing simultaneously referring to accompanying drawing, the present invention is described in more detail for embodiment.Should be appreciated that specific embodiment described herein, only for explaining the present invention, is not intended to limit the present invention.
The present invention discloses the changing method of External memory equipment under a kind of Android system, as shown in Figure 1, said method comprising the steps of:
S1, receive user and select in External memory equipment, after any one switching command as main External memory equipment, to unload the memory device on the corresponding mount point of all External memory equipments.
First, when under user wants Android system, principal and subordinate's External memory equipment switches, sent and from whole External memory equipments, selected the switching command of a memory device as main External memory equipment by system, triggering system starts the master slave relation of External memory equipment to switch.
When receiving after the switching command that above-mentioned user sends, the hand-off process program setting in advance is triggered and starts to carry out the blocked operation of memory device.
Owing to just cannot carrying out carry at operating memory device, therefore need the memory device on corresponding whole External memory equipments mount point first to unload before switching to main storage device at the memory device that user is selected, make memory device in the state of carry not.
The memory device that S2, user select is set to main External memory equipment; Generate new storage device configurations list, and according to new storage device configurations list, the External memory equipment under Android system is mounted on corresponding mount point, complete the switching between principal and subordinate's External memory equipment.
After having unloaded, the memory device that user selects is set to main External memory equipment, and according to generating new stored configuration list, External memory equipment is re-started to carry.
Can expect, External memory equipment can be multiple, and mount point can be also multiple.
Further, in order to realize above-mentioned blocked operation, can also there is based on the above method following improvement:
Select for the ease of user, in reception user selects External memory equipment, before any one instruction as main External memory equipment, the configured list of all External memory equipments and master slave relation are shown.
In order to ensure the security of blocked operation, receive user select External memory equipment in after any one instruction as main External memory equipment, whether the application program of switching between execution principal and subordinate External memory equipment is had to the authority of switching and carry out verification, unload the operation of the memory device on the corresponding mount point of all External memory equipments if there is the authority of switching, if do not there is terminating operation of the authority of switching.
Due in the time that the memory device of mount point is unloaded, may exist the application program of some memory device the inside storage to be just in operation, therefore in order to prevent from storing the loss of data, after the memory device when on all mount points of unloading, send and whether confirm to provide the prompting of switching between outside principal and subordinate's memory device user and carry out the time of data preservation, if confirm described prompting, carry out described blocked operation, otherwise abandon this operation.
In order better memory device to be carried out to carry, at the memory device that user is selected, in the operation of main External memory equipment, amendment External memory equipment configured list is also preserved new configured list.
Fig. 2 has provided the method step process flow diagram of described method disclosed in this invention in the time of concrete application, and as shown in the figure, described method comprises:
First H1, system demonstrate list and the master slave relation of all External memory equipments and select for user.
H2, user select a memory device as main External memory equipment from External memory equipment list, trigger the instruction that External memory equipment switches.
H3, the application program of carrying out in advance blocked operation is carried out to Authority Verification, if there is the authority of switching to carry out next step H4, enter step H31 if do not switch authority.
H4, unloads the External memory equipment on described mount point, and enters step H5.
H5, send to switch and confirm instruction, if to select be to carry out step H6, otherwise abort operation to user.
H6, switch mount point, the memory device that user is selected is as main External memory equipment, and generates new storage device configurations list, if handover success carries out next step, otherwise abort operation.
H7, according to newly-generated storage device configurations list again carry External memory equipment, complete this blocked operation.
On the basis of described method disclosed in this invention, the present invention also provides the switched system of External memory equipment under a kind of Android system, as shown in Figure 3, comprising:
Equipment Unload module 10, selects, after instruction that any memory device of External memory equipment is main External memory equipment, to unload the memory device on the corresponding mount point of all External memory equipments for receiving user;
Hand-off process module 20,, and is mounted to External memory equipment on corresponding mount point according to new storage device configurations list as main External memory equipment for memory device that user is selected, completes the switching between principal and subordinate's External memory equipment.
In order better to complete described blocked operation, the structural representation of the switched system that is illustrated in figure 4 External memory equipment under a kind of Android system disclosed by the invention in the time of concrete application, as shown in Figure 4, the switched system of External memory equipment under described Android system, except comprising above-mentioned equipment Unload module 10 and hand-off process module 20, wherein also comprise:
Described list shows selects module 50, for receiving before user selects any one instruction as main storage device of External memory equipment, the configured list of all External memory equipments and master slave relation is shown.
Described authorization check module 30, select after any one instruction as main External memory equipment of External memory equipment for receiving user, whether the application program of switching between execution principal and subordinate External memory equipment is had to the authority of switching and carry out verification, unload the operation of the memory device on the corresponding mount point of all External memory equipments if there is the authority of switching, if do not there is terminating operation of the authority of switching.
Described confirmation handover module 40, for when after the memory device on all mount points of storage device processes program unloading, send and whether confirm the prompting of switching between principal and subordinate's External memory equipment, if confirm described prompting, carry out blocked operation, otherwise abandon this operation.
Described configured list update module 60, for memory device that user is selected, as the operation of main External memory equipment time, amendment External memory equipment configured list is also preserved new configured list.
Wherein, memory device and corresponding mount point thereof can be multiple.
Changing method and the system of External memory equipment under Android system provided by the present invention, from External memory equipment, select an instruction as main External memory equipment by receiving user, whole External memory equipments is unloaded from mount point, memory device in user selects is after main External memory equipment, generate new storage device configurations list, External memory equipment is re-started to carry, realize the dynamic switching of multiple External memory equipments, thereby overcome the mobile terminal of a use Android system of prior art, under its system, main External memory equipment is fixed as one, and other can only be mounted to the defect using main peripheral storage device as catalogue from External memory equipment, make user in the time using Android system, can better utilize multiple External memory equipments to carry out information storage, in improving stored memory utilization rate, better meet the demand of people to more storage spaces.
Be understandable that, for those of ordinary skills, can be equal to replacement or change according to technical scheme of the present invention and inventive concept thereof, and all these changes or replacement all should belong to the protection domain of the appended claim of the present invention.
Claims (10)
1. a changing method for External memory equipment under Android system, is characterized in that, comprising:
Receiving user selects in External memory equipment, after any one switching command as main External memory equipment, to unload the memory device on the corresponding mount point of all External memory equipments;
The memory device that user selects is set to main External memory equipment; Generate new storage device configurations list, and according to new storage device configurations list, the External memory equipment under Android system is mounted on corresponding mount point, complete the switching between principal and subordinate's External memory equipment.
2. the changing method of External memory equipment under Android system according to claim 1, it is characterized in that, in selecting External memory equipment, reception user before any one instruction as main External memory equipment, also comprises: the configured list of all External memory equipments and master slave relation are shown.
3. the changing method of External memory equipment under Android system according to claim 1, it is characterized in that, comprise, receiving user selects in External memory equipment after any one instruction as main External memory equipment, whether the application program of switching between execution principal and subordinate External memory equipment is had to the authority of switching and carry out verification, unload the operation of the memory device on the corresponding mount point of all External memory equipments if there is the authority of switching, if do not there is terminating operation of the authority of switching.
4. the changing method of External memory equipment under Android system according to claim 1, it is characterized in that, also comprise, when after the memory device on the corresponding mount point of all External memory equipments of unloading, send and whether confirm the prompting of switching between outside principal and subordinate's memory device, if confirm described prompting, carry out described blocked operation, otherwise abandon this operation.
5. the changing method of External memory equipment under Android system according to claim 4, it is characterized in that, the memory device that user is selected is as the operation of main External memory equipment time, and amendment External memory equipment configured list is also preserved new configured list.
6. a switched system for External memory equipment under Android system, is characterized in that, comprising:
Equipment Unload module, selects, after instruction that any memory device of External memory equipment is main External memory equipment, to unload the memory device on the corresponding mount point of all External memory equipments for receiving user;
Hand-off process module,, and is mounted to External memory equipment on corresponding mount point according to new storage device configurations list as main External memory equipment for memory device that user is selected, completes the switching between principal and subordinate's External memory equipment.
7. the switched system of External memory equipment under Android system according to claim 6, is characterized in that, also comprises that list shows to select module;
Described list shows selects module, for receiving before user selects any one instruction as main storage device of External memory equipment, the configured list of all External memory equipments and master slave relation is shown.
8. the switched system of External memory equipment under Android system according to claim 6, is characterized in that, also comprises authorization check module;
Described authorization check module, select after any one instruction as main External memory equipment of External memory equipment for receiving user, whether the application program of switching between execution principal and subordinate External memory equipment is had to the authority of switching and carry out verification, unload the operation of the memory device on the corresponding mount point of all External memory equipments if there is the authority of switching, if do not there is terminating operation of the authority of switching.
9. the switched system of External memory equipment under Android system according to claim 6, is characterized in that, also comprises, confirms handover module;
Described confirmation handover module, be used for when after the memory device on the corresponding mount point of all External memory equipments of storage device processes program unloading, send and whether confirm the prompting of switching between principal and subordinate's External memory equipment, if confirm described prompting, carry out described blocked operation, otherwise abandon this operation.
10. the switched system of External memory equipment under Android system according to claim 9, is characterized in that, also comprises configured list update module;
Described configured list update module, for memory device that user is selected, as the operation of main External memory equipment time, amendment External memory equipment configured list is also preserved new configured list.
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| CN201410329829.6A CN104090822B (en) | 2014-07-11 | 2014-07-11 | The switching method and system of android system lower outer portion storage device |
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| CN111104679A (en) * | 2018-10-26 | 2020-05-05 | 紫光同芯微电子有限公司 | External storage device for safe mounting and method thereof |
| CN113642010A (en) * | 2020-04-27 | 2021-11-12 | 青岛海信移动通信技术股份有限公司 | Method for acquiring data of extended storage device and mobile terminal |
| CN113835857A (en) * | 2021-09-18 | 2021-12-24 | 青岛海信移动通信技术股份有限公司 | External storage device mounting method, device, equipment and medium |
| CN114579036A (en) * | 2020-11-30 | 2022-06-03 | 北京达佳互联信息技术有限公司 | Storage device management method and related device |
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| CN113835857A (en) * | 2021-09-18 | 2021-12-24 | 青岛海信移动通信技术股份有限公司 | External storage device mounting method, device, equipment and medium |
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| CN104090822B (en) | 2018-10-26 |
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