Actionscript load file into bytearray
Indicates whether the specified property exists and is enumerable. Reads an IEEE double-precision bit floating-point number from the byte stream. Reads an IEEE single-precision bit floating-point number from the byte stream. Reads an object from the byte array, encoded in AMF serialized format.
Sets the availability of a dynamic property for loop operations. Returns the string representation of this object, formatted according to locale-specific conventions. Writes a sequence of length bytes from the specified byte array, bytes, starting offset zero-based index bytes into the byte stream.
Writes an IEEE double-precision bit floating-point number to the byte stream. Writes an IEEE single-precision bit floating-point number to the byte stream. Writes a multibyte string to the byte stream using the specified character set. Writes an object into the byte array in AMF serialized format. Property Detail. Implementation public function get bytesAvailable : uint. Implementation public function get length : uint public function set length value: uint : void. Implementation public function get position : uint public function set position value: uint : void.
In essence, both ByteArray instances contain a reference to the same underlying byte array. You can use several mechanisms to control access to shared memory: the compare-and-swap mechanisms provided by the ByteArray class's atomicCompareAndSwapIntAt and atomicCompareAndSwapLength methods the specialized mechanisms provided by the Mutex and Condition classes in the flash. The default value is false. It performs the following sequence of steps: Reads an integer value from this byte array starting at the index measured in bytes specified in the byteIndex argument Compares the actual value from this byte array to the value passed in the expectedValue argument If the two values are equal, it writes the value in the newValue argument into the byte array at the location specified by the byteIndex parameter and returns the value that was previously contained in those bytes the value read in step 1 Otherwise, the contents of the byte array are not changed and the method returns the actual value read from the byte array All these steps are performed in one atomic hardware transaction.
It does the following: Reads the integer length property of the ByteArray instance Compares the length to the value passed in the expectedLength argument If the two values are equal, it changes the byte array's length to the value passed as the newLength parameter, either growing or shrinking the size of the byte array Otherwise, the byte array is not changed All these steps are performed in one atomic hardware transaction. Related API Elements uncompress flash.
Related API Elements inflate. Throws IOError — The data is not valid compressed data; it was not compressed with the same compression algorithm used to compress. Related API Elements deflate. Returns Boolean — Returns true if the byte is nonzero, false otherwise. Returns int — An integer between and RangeError — The value of the supplied offset and length, combined, is greater than the maximum for a uint. More examples Reading and writing a ByteArray. Returns Number — A double-precision bit floating-point number.
Returns Number — A single-precision bit floating-point number. Returns int — A bit signed integer between and Returns String — UTF-8 encoded string. Related API Elements flash. Returns uint — A bit unsigned integer between 0 and Object Object. Returns String — The string representation of the byte array. Related API Elements compress flash. Throws RangeError — If the length is larger than Examples How to use this example. The following example uses the class ByteArrayExample to write a Boolean and the double-precision floating-point representation of pi to a byte array.
This is accomplished using the following steps: Declare a new ByteArray object instance byteArr. Write the byte-equivalent value of the Boolean false and then check the length and read it back. Write the double-precision floating-point equivalent of the mathematical value of pi. Read back each of the nine bytes written into the byte array. Language Reference only. ByteArray Object. ByteArray Creates a ByteArray instance representing a packed array of bytes, so that you can use the methods and properties in this class to optimize your data storage and stream.
ArgumentError — if the byteIndex value is not a multiple of 4 or if it's negative. IOError — The data is not valid compressed data; it was not compressed with the same compression algorithm used to compress.
Boolean — Returns true if the byte is nonzero, false otherwise. EOFError — There is not sufficient data available to read. Number — A double-precision bit floating-point number. Number — A single-precision bit floating-point number. This is for security reason since no-one would want a Flash application that silently loads something from their hard-drive.
Javascript is disabled in your web browser. Please enable it see how. Example1 This example allows user to select an text file txt, html, or php into the application. Please upgrade your browser. Previous post. Next post. We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. However, you may visit "Cookie Settings" to provide a controlled consent. Cookie Settings Accept All. Manage consent.
AMF 0 supports sending complex objects by reference and allows endpoints to restore object relationships. AMF 3 improves AMF 0 by sending object traits and strings by reference, in addition to object references, and by supporting new data types that were introduced in ActionScript 3.
The ByteArray. The flash. AMF0 and ObjectEncoding. The following example calls writeObject to write an XML object to a ByteArray, which it then compresses using the Deflate algorithm and writes to the order file on the desktop.
The readObject method reads an object in serialized AMF from a ByteArray and stores it in an object of the specified type. The example uses a for each loop construct to add each node to a text area for display. The example also displays the value of the objectEncoding property along with a header for the contents of the order file. Adobe Flash Platform. ByteArray methods The position property The bytesAvailable and length properties The endian property The compress and uncompress methods Reading and writing objects.
ByteArray methods Any meaningful data stream is organized into a format that you can analyze to find the information that you want. The position property The position property stores the current position of the pointer that indexes the ByteArray during reading or writing. The bytesAvailable and length properties The length and bytesAvailable properties tell you how long a ByteArray is and how many bytes remain in it from the current position to the end. Vivamus etc.
The endian property Computers can differ in how they store multibyte numbers, that is, numbers that require more than 1 byte of memory to store them. Ayman Radwan. Ayman Radwan Ayman Radwan 1 1 1 bronze badge. It would be useful to see the text file that you're referring to. Additionally, I'm pretty sure your first call to readUTF gives you the entire textfile as a string.
You could parse that, depending on the structure of this text file. Alright, that's good. Add a comment. Active Oldest Votes. Edit Answer : After re-reading I see you really mean First set up your vars like below: public var iStr:String; public var kStr:String; public var pixelValue:uint; public var Xcord:Vector. Improve this answer. One VC. One
0コメント