The File class has a number of properties and methods for getting information about the file system and for performing operations, such as copying files and directories. The File class extends the FileReference class. The File class includes static properties that let you reference commonly used directory locations. These static properties include:. These properties have meaningful values on different operating systems. For example, Mac OS, Linux, and Windows each have different native paths to the user's desktop directory.
However, the File. To write applications that work well across platforms, use these properties as the basis for referencing other files used by the application.
Then use the resolvePath method to refine the path. For example, this code points to the preferences. If you use a literal native path in referencing a file, it will only work on one platform.
For example, the following File object would only work on Windows:. The application storage directory is particularly useful. It gives an application-specific storage directory for the AIR application. It is defined by the File. Do not add or remove content from the application directory where the AIR application is installed.
Doing so can break an AIR application and invalidate the application signature. AIR does not let you write to the application directory by default, because the directory is not writable to all user accounts on all operating systems. Use the application storage directory to write internal application files. Use the documents directory to write files that a user expects to use outside your application, such as edited pictures or text files.
The folder containing the application's installed files. This means that the url string is specified starting with "app:" not "file:". Also, if you create a File object relative to the File. Note: You cannot write to files or directories that have paths that use the app: URL scheme. Also, you cannot delete or create files or folders that have paths that use the app: URL scheme.
Modifying content in the application directory is a bad practice, for security reasons, and is blocked by the operating system on some platforms. If you want to store application-specific data, consider using the application storage directory File. If you want any of the content in the application storage directory to have access to the application-privileged functionality AIR APIs , you can expose that functionality by using a sandbox bridge.
The applicationDirectory property provides a way to reference the application directory that works across platforms. If you set a File object to reference the application directory using the nativePath or url property, it will only work on the platform for which that path is valid.
On Android, the nativePath property of a File object pointing to the application directory is an empty string. Use the url property to access application files. The application's private storage directory. Each AIR application has a unique, persistent application storage directory, which is created when you first access File. This directory is a convenient location to store application-specific data.
When you uninstall an AIR application, whether the uninstaller deletes the application storage directory and its files depends on the platform. This means that the url string is specified starting with "app-storage:" not "file:". The applicationStorageDirectory property provides a way to reference the application storage directory that works across platforms. If you set a File object to reference the application storage directory using the nativePath or url property, it will only work on the platform for which that path is valid.
The user's desktop directory. The desktopDirectory property provides a way to reference the desktop directory that works across platforms. If you set a File object to reference the desktop directory using the nativePath or url property, it will only work on the platform for which that path is valid. If an operating system does not support a desktop directory, a suitable directory in the file system is used instead.
AIR for TV devices have no concept of a user's desktop directory. Therefore, the desktopDirectory property references the same directory location as File. The user directory is unique to the application. The user's documents directory. The documentsDirectory property provides a way to reference the documents directory that works across platforms. If you set a File object to reference the documents directory using the nativePath or url property, it will only work on the platform for which that path is valid.
If an operating system does not support a documents directory, a suitable directory in the file system is used instead. AIR for TV devices have no concept of a user's documents directory. Therefore, the documentsDirectory property references the same directory location as the File. Indicates whether the referenced file or directory was downloaded from the internet or not. This property is only meaningful on operating systems in which files can be flagged as downloaded:.
On systems that do not flag downloaded files, such as Linux, the property is not meaningful and it is set to false. Indicates whether the referenced file or directory exists. The value is true if the File object points to an existing file or directory, false otherwise. An Icon object containing the icons defined for the file. An Icon object is an array of BitmapData objects corresponding to the various icon states. On Linux, the Icon object contains no icons.
On Android, the icon property is null. Indicates whether the reference is to a directory. The value is true if the File object points to a directory; false otherwise. Indicates whether the referenced file or directory is "hidden. Indicates whether the referenced directory is a package. The value is true if the referenced directory is a package, false otherwise.
Note that the File class does not allow creating packages directly. Indicates whether the reference is a symbolic link. The value is true if the File object is a symbolic link, false otherwise. Note that the File class does not allow creating symbolic links directly.
Symbolic links allow a file to point to another file or directory on disk. Although similar, symbolic links are not the same as aliases on Mac OS and shortcuts on Windows. An alias or a shortcut is always reported as a file rather than a directory , and reading or writing to an alias or shortcut never affects the original file or directory that it points to. On the other hand, a symbolic link generally behaves like the file or directory it points to. It can be reported as a file or a directory, and reading or writing to a symbolic link affects the file or directory that it points to, not the symbolic link itself.
Deleting a symbolic link, however, deletes the link and not the target of the link. The line-ending character sequence used by the host operating system. On Windows, this is the carriage return character character code 0x0D hexadecimal followed by the line-feed character character code 0x0A hexadecimal.
The full path in the host operating system representation. Before writing code to set the nativePath property directly, consider whether doing so may result in platform-specific code. It is far better to use the following static properties, which represent commonly used directories, and which are valid on all platforms:. The directory that contains the file or directory referenced by this File object.
If the file or directory does not exist, the parent property still returns the File object that points to the containing directory, even if that directory does not exist. This property is identical to the return value for resolvePath ".. The host operating system's path component separator character.
Each pair of backslashes in a String literal represent a single backslash in the String. The space available for use at this File location, in bytes. If the File object references a directory, spaceAvailable indicates the space in the directory that files can use. If the File object references a file, spaceAvailable indicates the space into which the file could grow.
If the file location does not exist, spaceAvailable is set to 0. If the File object references a symbolic link, spaceAvailable indicates the space available at the location the symbolic link points to. Typically the space available for a directory or file is the same as the space available on the volume containing the directory or file. However, space available can take into account quotas and per-directory limits.
Adding a file or directory to a volume generally requires more space than the actual size of the file or the size of the contents of the directory. For example, the operating system may require more space to store index information.
Or the disk sectors required may use additional space. Also, available space changes dynamically. So, you cannot expect to allocate all of the reported space for file storage. The default encoding used by the host operating system.
Possible values include "windows" "shift-jis" , "cn-gb" , "iso" , and others. For a complete list, see Supported Character Sets. The URL for this file path. If this is a reference to a path in the application storage directory, the URL scheme is "app-storage" ; if it is a reference to a path in the application directory, the URL scheme is "app" ; otherwise the scheme is "file".
The user's directory. The userDirectory property provides a way to reference the user directory that works across platforms. If you set the nativePath or url property of a File object directly, it will only work on the platform for which that path is valid.
If an operating system does not support a user directory, a suitable directory in the file system is used instead. The constructor function for the File class. If you pass a path argument, the File object points to the specified path, and the nativePath property and and url property are set to reflect that path. Although you can pass a path argument to specify a file path, consider whether doing so may result in platform-specific code. You can then use the resolvePath method to get a path relative to these directories.
For example, the following code sets up a File object to point to the settings. A URL uses the file:, app:, or app-storage: scheme prefixes. However, if the valid URL prefixes are omitted, the path string is treated like a native path and no decoding takes place.
You must take this behavior into consideration when validating paths derived from potentially untrusted sources. If you simply validate the input string, URL decoding may allow an attacker to bypass your validation checks. Always validate the final path of the instantiated File object:. The following are valid values for the path parameter using URL notation:. The app and app-storage URL schemes are useful because they can point to a valid file on all file systems. However, in the other two examples, which use the file URL scheme to point to the user's desktop directory, it would be better to pass no path argument to the File constructor and then assign File.
If you specify a native path, on Windows you can use either the backslash character or the forward slash character as the path separator in this argument; on Mac OS and Linux, use the forward slash. The following are valid values for the path parameter using native path notation:.
However, for these two examples, you should pass no path argument to the File constructor and then assign File. Displays a directory chooser dialog box, in which the user can select a directory. When the user selects the directory, the select event is dispatched. The target property of the select event is the File object pointing to the selected directory.
The directory chooser dialog is not always displayed in front of windows that are "owned" by another window windows that have a non-null owner property. To avoid window ordering issues, hide owned windows before calling this method. Note: On Android devices, browseForDirectory is not supported.
Adobe will alternatively promote its Adobe AIR technology to develop games and applications. Hypertext Markup Language is designed to format web documents or web pages. It is SEO-friendly, supports Flash technology, and is known for its inter-functionality. It also has good storage options.
Some issues have damaged Flash over the years. The main concern has always been the lack of security as Adobe struggles to maintain the zero-day vulnerabilities that appear every other month. Steve Jobs summed up the downside of Flash in April Let us discuss the below steps to help you get started with a successful transition from Flash websites to HTML 5. The transition of Flash into HTML 5 is a time-consuming process and can take a long time depending on the content you convert.
So, it is a good idea to have a detailed plan prepared before you start with the actual work. Finding more items that come with it will take away all the hassle and stress, and you will continue the process without any hiccups. Here are some of the most popular web development tools you can use to convert Flash websites to HTML You can use this tool without paying just for an Adobe subscription, paying an intrinsic value in conversion quality.
Zoe is a mass-converting tool, part of the JavaScript library package and supported by Adobe, Microsoft, and Mozilla.
The main feature of this tool is its ability to find the dimensions of the property and support nested graphics and the ability to maintain frame labels. For example, it has increased the efficiency and convenience of staff and learners alike in the e-learning industry.
Now learners can use e-learning materials on the device of their choice. While Flash players are no longer available on many mobile devices, this conversion to HTML5 is solving their dilemma. Learners can use their content anytime, anywhere on the device of their choice.
Thanks to you all for your generous input here in regards to helping us learn how we might be able to better project our valuable and copyright-owned professional studio work for. It appears that we may possibly have to hire an advanced programming expert to help us conduct some of the suggestions contained in this thread, since this stuff is way over our heads, including mine. If anyone here has any further ideas, I invite you to please contribute your input, as we're still assessing our best options, and it would be much appreciated.
As long as the person is able to see the source most often everyone is of the. HTML page which has the. SWF inserted, it is very easy to see the name of the. Protect from import will protect the SWF's original source, no sounds will be presented nor any actions or movie clips For people to access the Flash content on your site, viewing the SWF is necessary, but no one could actually steal or edit your copyright if protect from import is enabled.
All they can do is download it and just view the animation or whatever it is in the SWF. Regards, NIck. Usually the way I do protect my swf. It's not perpect solution but works charm. However, there is no way to prevent your flash movies from being hacked by a serious guy. Hi, Here are my answers Anyone can easily download a swf by accessing a site that uses flash. In order to watch a flash site obviously the swf is downloaded into the user pc.
It can be found in the temp folder. Protection here,does not mean that you can stop the file from being downloaded. Instead it prevents the swf file from being imported into flash again to be edited as mention. Hey is does you can experiment it yourself. Publish a movie check the protection option see if you can import it again. Ans :You can't.
That is the use of this option. There are programs out there that can crack a protected movie to become unprotected. Other then the above method you would have your name on the movie itself.
0コメント