CN103530186B - Realize that camera applications support the method and system of multiposition storage - Google Patents

Realize that camera applications support the method and system of multiposition storage Download PDF

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Publication number
CN103530186B
CN103530186B CN201310208997.5A CN201310208997A CN103530186B CN 103530186 B CN103530186 B CN 103530186B CN 201310208997 A CN201310208997 A CN 201310208997A CN 103530186 B CN103530186 B CN 103530186B
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store path
storage
user
android
memory
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CN201310208997.5A
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Chinese (zh)
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CN103530186A (en
Inventor
郝占峰
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Tcl集团股份有限公司
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Abstract

The present invention discloses the method and system for realizing that camera applications support multiposition storage, wherein, methods described includes step:The vold mechanism of android system is modified, android system is added the node for carry storage device automatically, and the storage device for being mounted to android system can be identified;The store path of the store path of the storage device of carry and Installed System Memory, and being managed by a configuration file to the store path of acquisition is obtained, instruction is chosen in the path for receiving user, and the store path that user chooses is stored in configuration file;When user is taken pictures or imaged using camera applications, the configuration file for being stored with store path is called, the store path selected by user is obtained, the file of intake is stored in the store path selected by user.

Description

Realize that camera applications support the method and system of multiposition storage

Technical field

The present invention relates to camera applications field, more particularly to realize that camera applications support the method for multiposition storage and are System.

Background technology

The camera developed in android system becomes more and more popular, either television camera, or mobile phone camera all turns into use The application program that family is commonly used, but in traditional Android camera applications, user's bat can only be typically stored on sd cards Video under the picture and record that take, it is impossible to the file absorbed is stored on internal memory or other storage devices, this gives user Use bring great inconvenience.

Therefore, prior art has yet to be improved and developed.

The content of the invention

In view of above-mentioned the deficiencies in the prior art, it is an object of the invention to provide realize camera applications support multiposition storage Method and system, it is intended to solve the problems, such as that existing android system camera applications do not support multiposition to store.

Technical scheme is as follows:

It is a kind of to realize the method for supporting multiposition storage in android system camera applications, wherein, including step:

A, the vold mechanism of android system is modified, android system is added automatically and set for carry storage Standby node, and the storage device for being mounted to android system can be identified;

B, the store path of the store path of the storage device of carry and Installed System Memory is obtained, and passes through a configuration File is managed to the store path of acquisition, and instruction is chosen in the path for receiving user, and the store path that user is chosen stores In configuration file;

C, when user is taken pictures or imaged using camera applications, the configuration file for being stored with store path is called, is used Store path selected by family, the file of intake is stored in the store path selected by user.

The method that described realization supports multiposition storage in android system camera applications, wherein, the step B tools Body includes:

B1, the storage road for calling getVolumePaths methods to obtain the storage device of carry is reflected using java Footpath, and pass through the store path of Android standard interfaces acquisition Installed System Memory;

B2, configuration file for managing store path is added, the store path selected by user is stored in configuration text In part.

The method that described realization supports multiposition storage in android system camera applications, wherein, the step C tools Body includes:

The size for the file that C1, predefined absorb;

C2, calling are stored with the configuration file of store path, obtain the store path selected by user;

C3, computational methods for calculating store path are called, calculate the available sky of the store path selected by user Between;

C4, judge whether free space is more than the size of the file of intake, when being, control allows to take pictures or imaged, no Then prompt the free space deficiency of its store path chosen of user.

The method that described realization supports multiposition storage in android system camera applications, wherein, computing system internal memory Free space the step of specifically include:

C31, pre-set a memory headroom threshold value;

C32, the space address using android system standard interface acquisition Installed System Memory, call fileinfo interface meter The current spatial of calculation system internal memory;

C33, the current spatial calculated is subtracted into memory headroom threshold value obtain the free space of Installed System Memory.

The method that described realization supports multiposition storage in android system camera applications, wherein, the storage device For sd cards or USB storage device.

It is a kind of to realize the system for supporting multiposition storage in android system camera applications, wherein, including:

Identification module is added, for being modified to the vold mechanism of android system, android system is added automatically Add the node for carry storage device, and the storage device for being mounted to android system can be identified;

Store path acquisition module, for obtaining depositing for the store path of the storage device of carry and Installed System Memory Path is stored up, and the store path of acquisition is managed by a configuration file, instruction is chosen in the path for receiving user, by user The store path of selection is stored in configuration file;

Memory module, for when user is taken pictures or imaged using camera applications, calling the configuration for being stored with store path File, the store path selected by user is obtained, the file of intake is stored in the store path selected by user.

The system that described realization supports multiposition storage in android system camera applications, wherein, the store path Acquisition module includes:

Store path acquiring unit, for calling getVolumePaths methods to obtain carry using java reflections The store path of storage device, and pass through the store path of Android standard interfaces acquisition Installed System Memory;

Store path adding device, for adding the configuration file for being used for managing store path, by depositing selected by user Storage path is stored in configuration file.

The system that described realization supports multiposition storage in android system camera applications, wherein, the memory module Including:

Definition unit, the size for the file of predefined intake;

Store path call unit, the configuration file of store path is stored with for calling, obtains depositing selected by user Store up path;

Free space computing unit, for calling the computational methods for being used for calculating store path, calculate selected by user Store path free space;

Identifying unit, for judging whether free space is more than the size of the file of intake, when being, by the file of intake It is stored in the store path selected by user, otherwise prompts the free space deficiency of its store path chosen of user.

The system that described realization supports multiposition storage in android system camera applications, wherein, the free space Computing unit includes:

Default subelement, for pre-setting a memory headroom threshold value;

Free space computation subunit, for obtaining the space address of Installed System Memory using android system standard interface, Fileinfo interface is called to calculate the current spatial of Installed System Memory;

Judge subelement, the available sky of Installed System Memory is obtained for the current spatial calculated to be subtracted into memory headroom threshold value Between.

The system that described realization supports multiposition storage in android system camera applications, wherein, the storage device For sd cards or USB storage device.

Beneficial effect:The present invention is by increasing the node for carry storage device so that android system can identify The storage device of carry, and by obtaining the store path of storage device and Installed System Memory, enable users to the file of intake It is stored in storage device or Installed System Memory, the present invention extends the use function of camera applications, improves camera applications Portable performance, in user in emergency circumstances, also using different storage device or Installed System Memory storage can be supported to operate.

Brief description of the drawings

Fig. 1 is that the present invention realizes the method preferred embodiment that multiposition storage is supported in android system camera applications Flow chart.

Fig. 2 is the particular flow sheet of step S102 in method shown in Fig. 1.

Fig. 3 is the particular flow sheet of step S103 in method shown in Fig. 1.

Fig. 4 is the particular flow sheet for the free space that Installed System Memory is calculated in method shown in Fig. 3.

Fig. 5 is that the present invention realizes the system preferred embodiment that multiposition storage is supported in android system camera applications Structured flowchart.

Fig. 6 is the concrete structure block diagram of store path acquisition module in system shown in Figure 5.

Fig. 7 is the concrete structure block diagram of memory module in system shown in Figure 5.

Fig. 8 is the concrete structure block diagram of free space computing unit in memory module shown in Fig. 7.

Embodiment

The present invention provides the method and system for realizing that camera applications support multiposition storage, to make the purpose of the present invention, skill Art scheme and effect are clearer, clear and definite, and the present invention is described in more detail below.It should be appreciated that tool described herein Body embodiment only to explain the present invention, is not intended to limit the present invention.

Referring to Fig. 1, Fig. 1, which is that the present invention is a kind of, realizes the side that multiposition storage is supported in android system camera applications Method, as illustrated, it includes step:

S101, the vold mechanism to android system are modified, and android system is added automatically for carry The node of storage device, and the storage device for being mounted to android system can be identified;

S102, obtain the store path of the store path of the storage device of carry and Installed System Memory, and pass through one Configuration file is managed to the store path of acquisition, and instruction is chosen in the path for receiving user, the store path that user is chosen It is stored in configuration file;

S103, when user is taken pictures or imaged using camera applications, call and be stored with the configuration file of store path, obtain Store path selected by user, the file of intake is stored in the store path selected by user.

In step S101, the vold mechanism of android system is modified first, enables android system certainly Node of the dynamic addition for the fixation of carry storage device, vold therein are in android system between application layer and bottom The finger daemon to be communicated;In vold, NetLinkManager be for and kernel(Kernel)Communicated, The code of the NetLinkManager in vold is changed, NetLinkManager can be enable to support the knowledge to multiple storage devices Not.

After storage device carry to android system, NetLinkManager meeting uploading device information, and pass through vold VolumeManager in mechanism is managed to storage device, and NetLinkManager is specifically caught to the equipment come and believed The device data list that breath is added in VolumeManager is managed.

VolumeManager again sends corresponding facility information to MountService, is set by MountService Duis Standby information is confirmed, then corresponding confirmation is back into vold, so as to confirm carry storage device, and by vold The facility information of the storage device of carry is added in android system.

In step s 102, the store path of storage device and Installed System Memory can be obtained by different methods, then It is managed by a configuration file.Specifically, as shown in Fig. 2 step S102 can specifically be refined as following steps:

S201, the storage road for calling getVolumePaths methods to obtain the storage device of carry is reflected using java Footpath, and pass through the store path of Android standard interfaces acquisition Installed System Memory;

For the store path of storage device, can be obtained by following methods:

Storagemanager can call the method in MountService to realize getVolumePaths methods, should GetVolumePaths methods can be used to obtain the equipment such as similar store path of the storage device of carry in android system and believe Breath;Then java reflex mechanisms are used(A kind of mechanism of call method)There is provided to call Storagemanager GetVolumePaths methods, realize the purpose of the store path for the storage device for obtaining carry.Above-mentioned vold, Storagemanager, MountService, getVolumePaths, NetLinkManager are to be commonly used in android system Noun, it is well known to those skilled in the art.

For the store path of Installed System Memory, interface directly can be identified by android system to obtain.

S202, configuration file for managing store path is added, the store path selected by user is stored in configuration In file.

This configuration file is management class, store path can be managed collectively, and store the storage road selected by user Footpath, when needing, to be called by this configuration file.

In step s 103, when user is taken pictures or imaged using camera applications, call be stored with store path first Configuration file, the store path selected by user is obtained, then the file of intake is stored in the store path selected by user In.In this step, also need to consider, when storage device or Installed System Memory free space deficiency, then can not be protected Deposit, so whether the size for needing to judge the file of intake in advance can be stored in storage device or Installed System Memory.

As shown in figure 3, step S103 can specifically be refined as following steps:

The size for the file that S301, predefined absorb, naturally it is also possible to after user completes intake image, described in acquisition Absorb the storage data quantity of image;

S302, calling are stored with the configuration file of store path, obtain the store path selected by user;

S303, computational methods for calculating store path are called, calculate the available of store path selected by user Space;

S304, judge whether free space is more than the size of the file of intake, when being, the file of intake is stored in use In store path selected by family, the free space deficiency of its store path chosen of user is otherwise prompted.

For storage device, it can directly judge whether free space is more than the size of the intake file of definition;But for being System internal memory, then also need to ensure that Installed System Memory has enough free spaces, can shadow when the free space of Installed System Memory is too small Ring to the great number of issues such as the startup in system and operation, so, when the store path selected by user is depositing for Installed System Memory When storing up path, as shown in figure 4, now step S303 can specifically be refined as following steps:

S401, a memory headroom threshold value is pre-set, memory headroom described here generally refers to the inside SD card of equipment Memory space;

S402, the space address using android system standard interface acquisition Installed System Memory, call fileinfo interface meter The current spatial of calculation system internal memory;

S403, the current spatial calculated is subtracted into memory headroom threshold value obtain the free space of Installed System Memory.

In above-mentioned steps, memory headroom threshold value refers to have to remaining space size in Installed System Memory, such as sets For SRPLUS_SIZE=300*1024*1024, i.e., reserved 300M space.The standard interface provided again by android system To obtain the space address data_path of Installed System Memory, fileinfo interface is called to calculate current spatial size data_ available_size.SRPLUS_SIZE is subtracted with data_available_size, you can obtain camera application program institute again The space size that can be used.

Next, whether the free space that can continue to judge to calculate is more than the size of the intake file of predefined, when When being, then control allows to take pictures or imaged, and otherwise prompts user's space deficiency.

In the present invention, signified storage device is sd cards or USB storage device, so, when user uses camera applications, If Installed System Memory can also be used during no sd cards, and either USB storage device is stored or also can during without USB storage device Using Installed System Memory, either sd cards are stored or when sd cards and USB storage device are not all had memory space, be could be used that and are System internal memory is stored.Certainly, storage device of the invention is also not limited to the storage device of the above-mentioned type, can also be other The storage device of form, the same function that can realize extension camera applications storage location.

Based on the above method, the present invention also provides a kind of realize and supports multiposition storage in android system camera applications System, as shown in figure 5, it includes:

Identification module 100 is added, for being modified to the vold mechanism of android system, makes android system automatic The node for carry storage device is added, and the storage device for being mounted to android system can be identified;

Store path acquisition module 200, for obtaining the store path and Installed System Memory of the storage device of carry Store path, and the store path of acquisition is managed by a configuration file, instruction is chosen in the path for receiving user, will The store path that user chooses is stored in configuration file;

Memory module 300, for when user is taken pictures or imaged using camera applications, calling to be stored with matching somebody with somebody for store path File is put, the store path selected by user is obtained, the file of intake is stored in the store path selected by user.

Further, as shown in fig. 6, the store path acquisition module 200 includes:

Store path acquiring unit 210, for calling getVolumePaths methods to be hung using java reflections The store path of the storage device of load, and pass through the store path of Android standard interfaces acquisition Installed System Memory;

Store path adding device 220, for adding the configuration file for being used for managing store path, by selected by user Store path is stored in configuration file.

Further, as shown in fig. 7, the memory module 300 includes:

Definition unit 310, the size for the file of predefined intake;

Store path call unit 320, the configuration file of store path is stored with for calling, obtained selected by user Store path;

Free space computing unit 330, for calling the computational methods for being used for calculating store path, calculate selected by user The free space of the store path taken;

Identifying unit 340, for judging whether free space is more than the size of the file of intake, when being, by intake File is stored in the store path selected by user, otherwise prompts the free space deficiency of its store path chosen of user.

Further, as shown in figure 8, the free space computing unit 330 includes:

Default subelement 331, for pre-setting a memory headroom threshold value;

Free space computation subunit 332, for obtaining Installed System Memory spatially using android system standard interface Location, fileinfo interface is called to calculate the current spatial of Installed System Memory;

Judge subelement 333, for by the current spatial calculated subtract that memory headroom threshold value obtains Installed System Memory can Use space.On the ins and outs of above-mentioned modular unit, it has been described in detail in method above, therefore repeat no more.

Further, the storage device is sd cards or USB storage device.

In summary, node of the present invention by amplification plus for carry storage device so that android system can be known The storage device of other carry, and by obtaining the store path of storage device and Installed System Memory, enable users to the text of intake Part is stored in storage device or Installed System Memory, and the present invention extends the use function of camera applications, improves camera applications Consumer's Experience, in user in emergency circumstances, also can using different storage device or Installed System Memory come support storage operate.

It should be appreciated that the application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, can To be improved or converted according to the above description, all these modifications and variations should all belong to the guarantor of appended claims of the present invention Protect scope.

Claims (6)

1. a kind of realize the method for supporting multiposition storage in android system camera applications, it is characterised in that including step:
A, the vold mechanism of android system is modified, android system is added automatically for carry storage device Node, and the storage device for being mounted to android system can be identified;
B, the store path of the store path of the storage device of carry and Installed System Memory, and pass through a configuration file is obtained The store path of acquisition is managed, instruction is chosen in the path for receiving user, and the store path that user chooses is stored in and matched somebody with somebody Put in file;
C, when user is taken pictures or imaged using camera applications, the configuration file for being stored with store path is called, obtains user institute The store path of selection, the file of intake is stored in the store path selected by user;
The step B is specifically included:
B1, the store path for calling getVolumePaths methods to obtain the storage device of carry is reflected using java, and The store path of Installed System Memory is obtained by Android standard interfaces;
B2, configuration file for managing store path is added, the store path selected by user is stored in configuration file;
The step C is specifically included:
C1, predefined intake file size or user complete intake image after, obtain it is described intake image storage Data volume;
C2, calling are stored with the configuration file of store path, obtain the store path selected by user;
C3, computational methods for calculating store path are called, calculate the free space of the store path selected by user;
C4, judge whether free space is more than the size of the file of intake, when being, control allows to take pictures or imaged, and otherwise carries Show the free space deficiency of its store path chosen of user.
2. according to claim 1 realize the method for supporting multiposition storage in android system camera applications, its feature It is, specifically includes the step of the free space of computing system internal memory:
C31, pre-set a memory headroom threshold value;
C32, the space address using android system standard interface acquisition Installed System Memory, call fileinfo interface to calculate The current spatial of Installed System Memory;
C33, the current spatial calculated is subtracted into memory headroom threshold value obtain the free space of Installed System Memory.
3. according to claim 1 realize the method for supporting multiposition storage in android system camera applications, its feature It is, the storage device is sd cards or USB storage device.
4. a kind of realize the system for supporting multiposition storage in android system camera applications, it is characterised in that including:
Identification module is added, for being modified to the vold mechanism of android system, android system is added use automatically In the node of carry storage device, and the storage device for being mounted to android system can be identified;
Store path acquisition module, for obtaining the storage road of the store path of the storage device of carry and Installed System Memory Footpath, and the store path of acquisition is managed by a configuration file, instruction is chosen in the path for receiving user, and user is chosen Store path be stored in configuration file;
Memory module, for when user is taken pictures or imaged using camera applications, calling the configuration file for being stored with store path, The store path selected by user is obtained, the file of intake is stored in the store path selected by user;
The store path acquisition module includes:
Store path acquiring unit, for obtaining the storage of carry using java reflection calling getVolumePaths methods The store path of equipment, and pass through the store path of Android standard interfaces acquisition Installed System Memory;
Store path adding device, for adding the configuration file for being used for managing store path, by the storage road selected by user Footpath is stored in configuration file;
The memory module includes:
Definition unit, for the size of the file of predefined intake or after user completes intake image, obtain the intake The storage data quantity of image;
Store path call unit, the configuration file of store path is stored with for calling, obtains the storage road selected by user Footpath;
Free space computing unit, for calling the computational methods for being used for calculating store path, calculate depositing selected by user Store up the free space in path;
Identifying unit, for judging whether free space is more than the size of the file of intake, when being, the file of intake is stored In the store path selected by user, the free space deficiency of its store path chosen of user is otherwise prompted.
5. according to claim 4 realize the system for supporting multiposition storage in android system camera applications, its feature It is, the free space computing unit includes:
Default subelement, for pre-setting a memory headroom threshold value;
Free space computation subunit, for obtaining the space address of Installed System Memory using android system standard interface, call Fileinfo interface calculates the current spatial of Installed System Memory;
Judge subelement, the free space of Installed System Memory is obtained for the current spatial calculated to be subtracted into memory headroom threshold value.
6. according to claim 4 realize the system for supporting multiposition storage in android system camera applications, its feature It is, the storage device is sd cards or USB storage device.
CN201310208997.5A 2013-05-30 2013-05-30 Realize that camera applications support the method and system of multiposition storage CN103530186B (en)

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