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By Scott Davis
Even if you are new to Groovy or you are an skilled Groovy programmer, Groovy Recipes, is a must-have reference e-book. Groovy Recipes, is sweet at giving a easy rationalization on Groovy center innovations. yet, its genuine power is in offering a plethora of examples, that maintain you coming again to this e-book, time and again, to benefit the easy beauty of writing Groovy code. no matter if you are an skilled Java or Groovy programmer, you will need this e-book on your programming device field. I usually reference Chapters 6,7 and eight, "File Tricks," "Parsing XML" and "Writing XML," respectively. The final chapters of the ebook, which hide Grails, are okay, if you'd like a basic knowing of what Grails is and the way to take advantage of it. although, if Grails is your larger curiosity, there are greater books that you'll want to have in your shelf to reference (e.g. Groovy and Grails Recipes and The Definitive advisor to Grails).Bottom line, if Groovy is your fundamental programming language, this is often an exceptional booklet to have on your arsenal.
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starting Android four is an replace to starting Android three, initially written through Mark Murphy. it's your first step at the route to developing marketable apps for the burgeoning Android marketplace, Amazon's Android Appstore, and extra. Google’s Android operating-system has taken the by means of typhoon, going from its humble beginnings as a phone working method to its present prestige as a platform for apps that run throughout a gamut of units from telephones to pills to netbooks to televisions, and the checklist is bound to develop.
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starting Android four is clean with info at the most recent generation of the Android platform. commence at first by way of fitting the instruments and compiling a skeleton app. go through growing layouts, applying widgets, taking consumer enter, and giving again effects. quickly you’ll be developing leading edge functions concerning multi-touch, multi-tasking, location-based function units utilizing GPS.
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<h3>What you’ll learn</h3> * increase Java-based cellular functions and video games for quite a lot of telephones and units.
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starting Android four is geared toward programmers new to Android software improvement who wish to create marketable purposes for the burgeoning industry of cellphone, pill, and different Android equipment clients.
desk of Contents * the massive photograph
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* utilizing XML-Based Layouts
* using uncomplicated Widgets
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* utilizing choice Widgets
* Getting Fancy with Lists
* nonetheless extra Widgets and boxes
* Embedding the WebKit Browser
* utilizing Menus
* displaying Pop-up Messages
* dealing with job Lifecycle occasions
* dealing with Rotation
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* Launching actions and Sub-Activities
* operating with assets
* Defining and utilizing kinds
* dealing with a number of display Sizes
* Introducing the Honeycomb UI
* utilizing the motion Bar
* Fragments
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* having access to records
* utilizing personal tastes
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* speaking through the net
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* Mapping with MapView and MapActivity
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Additional resources for Groovy Recipes: Greasing the Wheels of Java (Pragmatic Programmers)
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Next, I can wrap those results in HTML fragments using the MarkupBuilder named html that is available to every Groovlet. ) Here is what the resulting HTML looks like... 4, on the next page, you can see what it looks like in the browser. Groovlets aren’t meant to be a replacement for a full-feature web framework. They are simply scripts that you can run on a web server as easily as you could from the command line. For an example of using Groovy within a web framework, see the chapters on Grails and Gorm.
Groovy overloads the << operator to the leftShift() method to accomplish this. getAt(1) ==> Groovy Even though languages is technically a List, you can make array-like calls to it as well. Groovy blurs the syntactic distinction between Lists and Arrays, allowing you to use the style that is most pleasing to you. each{lang -> println lang } ===> Java Groovy JRuby Iterating through a List is such a common activity that Groovy gives you a convenient way to do it. In the first example, you use the default name for the iterator variable, it.
2. Click New Remote Site. 3. Type Groovy in the Name field. 4. org/groovy/distributions/update/ in the URL field, and click OK. 37 G ROOVY + I NTELLI J IDEA 5. Check the Groovy repository, and click Finish. 6. Select Groovy under Select Features to Install, and click Next. 7. Read the agreement, and click Next. 8. Set the default location, and click Finish. 9. If you get a warning about the plug-in being unsigned, don’t worry. Click Install. Restart Eclipse, and you should be ready to use Groovy.