By Alaric Cole
Examine Adobe Flex four in a enjoyable and fascinating manner with this book's detailed, hands-on strategy. utilizing transparent examples and step by step training from specialists, you will create 4 functions that exhibit basic Flex programming thoughts. during the process this booklet, you’ll how one can increase consumer interplay with ActionScript, and create and dermis a consumer interface with Flex’s UI parts (MXML) and Adobe's new FXG pictures layout. you will even be informed to regulate dynamic information, hook up with a database utilizing server-side script, and installation functions to either the net and the machine. studying Flex four deals counsel and tips the authors have amassed from years of real-world adventure, and simple causes of object-oriented programming techniques that can assist you know how Flex four works.
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Additional resources for Learning Flex 4: Getting Up to Speed with Rich Internet Application Design and Development
However, it’s not for everyone. If you’re looking to create simple animations and don’t want to write any code, a Timeline-based animation utility might be a better choice. Because Flex requires a component framework, its applications often result in larger file sizes than custom Flash or ActionScript-only applications. However, in many cases, a slight increase in size may be worth the reduced development time. If you don’t want simple widgets or small applications to be weighed down by the framework, there are some solutions.
Controls Controls are interactive components that typically perform some function— a Button clicks, a ComboBox presents a menu, a CheckBox can be selected and deselected, etc. (Figure 3-11). The HelloWorld application required three controls: a Label, a Button, and a TextInput. Here are the common controls you’re likely to use: Button This is pretty simple: the Button is a clickable control that looks and acts like a physical button. Checkbox The CheckBox control is much like a Button, only it can be toggled to retain a selected or deselected state.
We’ll accept default values for the rest of our configuration, so choose Finish to complete the setup. Flash Builder will take a moment to construct the guts of the project, and when it’s finished, you’ll emerge in Source mode. We cover Source mode in the next section, so let’s jump over to Design mode. Two specific buttons toggle between Source and Design modes, and they are located side-by-side, directly above the code editor. mxml. Click on the Design button to change views (Figure 3-3). 32 Learning Flex 4 Download from Wow!