By Joey Lott, Darron Schall, Keith Peters
Good prior to Ajax and Microsoft's home windows Presentation starting place hit the scene, Macromedia provided the 1st procedure for construction web content with the responsiveness and performance of machine courses with its Flash-based "Rich web Applications". Now, new proprietor Adobe is taking Flash and its strong functions past the net and making it a full-fledged improvement atmosphere. instead of concentrate on conception, the ActionScript 3.0 Cookbook concentrates at the functional program of ActionScript, with greater than three hundred strategies you should use to resolve quite a lot of universal coding dilemmas. you can find recipes that express you ways to:Detect the user's Flash participant model or their working systemBuild customized classesFormat dates and forex typesWork with stringsBuild person interface componentsWork with audio and videoMake distant approach calls utilizing Flash Remoting and internet servicesLoad, ship, and seek XML dataAnd a lot, even more ...Each code recipe offers the matter, resolution, and dialogue of the way you should use it in alternative ways or customize it on your personal wishes, and why it really works. you could speedy find the recipe that almost all heavily fits your state of affairs and get the answer with out interpreting the full ebook to appreciate the underlying code. suggestions development from brief recipes for small difficulties to extra complicated scripts for thornier riddles, and the discussions supply a deeper research for resolving related matters sooner or later, in addition to attainable layout offerings and ramifications. you are going to even tips on how to hyperlink modular ActionScript items jointly to create rock-solid recommendations for Flex 2 and Flash applications.When you are not certain how ActionScript 3.0 works or tips to procedure a selected programming obstacle, you could easily decide up the booklet, turn to the suitable recipe(s), and speedy find the answer you are looking for.
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Don't worry if you don't understand all the specifics. You can use each recipe's solution without understanding the technical details, and this primer should help you understand the terminology. 4. How to Trace a Message Problem You need to trace out a message or the value of some data at runtime. 40 41 Solution Use the trace function, pass the data to it, run your application, and look for a message in the Console in Eclipse. Discussion You can trace out a message, the value of a variable, or just about any other data using trace, just as you would in earlier versions of ActionScript.
56 57 ActionScript also supports the ternary conditional operator (? :), which allows you to perform a conditional test and an assignment statement on a single line. A ternary operator requires three operands, as opposed to the one or two operands required by unary and binary operators. The first operand of the conditional operator is a conditional expression that evaluates to either true or false. The second operand is the value to assign to the variable if the condition is true, and the third operand is the value to assign if the condition is false.
Solution Listen for and handle mouse or key events. 5, but does require a little work. For mouse events, the main application class will not receive these directly, so it must listen for them on another object in the display list. endFill( ); Note that the mouse event names are defined in the MouseEvent class, and the handler methods get passed an instance of the MouseEvent class, so you'll need to import that class. MOUSE_MOVE, onMouseMove); } The onMouseDown methods sets a drawing line style on the new sprite and moves the drawing cursor to the mouse position.
ActionScript 3.0 Cookbook by Joey Lott, Darron Schall, Keith Peters