Android User Interface Development: Beginners Guide by Jason Morris

By Jason Morris

"Quickly layout and increase compelling person interfaces on your Android functions Leverage the Android structures flexibility and gear to layout impactful user-interfaces construct compelling, elementary purposes that might glance nice on any Android equipment Make your software stick out from the remainder with types and subject matters a realistic newbies consultant to take you step by step throughout the technique of constructing consumer interfaces to get your purposes noticed!In DetailThere are over 30,000 purposes for Android which were downloaded over 1000000 occasions already. What makes yours any diversified? development a compelling user-interface that folks comprehend and luxuriate in is essential for the survival of a brand new program in an atmosphere the place appear and feel could be the in simple terms factor among a person paying for your program; or deleting it forever.Working via examples, code-snippets, and screenshots this ebook introduces the basics of excellent user-interface layout from a builders viewpoint. This ebook will positioned you above the remainder through displaying you ways to construct extraordinary consumer interfaces to know your app clients recognition sufficient to cause them to shell out a few greenbacks to shop for your application.The Android person Interface improvement newbies advisor will inform you every little thing you want to be aware of to sort your functions from backside up. Given the significance of user-interface layout on a touch-screen machine, this e-book goals to equip its reader with the data required to construct killer Android purposes. beginning easily, and maintaining issues effortless, this e-book will take you on a step by step trip to realizing the principals of excellent user-interface layout, and the way to enforce the simplest consumer interfaces on an Android cellular gadget. It goals at development layout realizing on a chapter-by-chapter foundation, whereas introducing platform wisdom via examples.A functional definitive consultant for builders who are looking to layout and strengthen appealing Android user-interfaces What you are going to research from this bookDesign straightforward interfaces that aid quickly and simple entry to info discover and enforce a number of layouts in Android to layout consumer interfaces for different display sizes and densities make sure a constant user-interface adventure and enhance your software functionality by way of reusing your software elements layout easy-on-the-eye topics in your Android functions demonstrate and choose advanced information constructions from purposes equivalent to an address-book or calendar software by utilizing Android widgets Entertain your program clients by means of animating visible queues of what the applying is presently doing, and what impression their activities are having customise the integrated periods in Android to augment the person interface by way of developing tabs and galleries Leverage Androids source loading approach find out how most sensible to give your person with details; or catch info from them paintings via examples that includes all significant Android widgets, and a few of the more odd componentsApproachThis is a step by step consultant that goals to provide even a beginner Android developer an outstanding clutch of user-interface layout, whereas operating via examples, diagrams, and screenshots to exhibit some of the widgets and instruments that the platform makes to be had. Who this booklet is written forIf you have got a bit event in Java and need to construct purposes for the Android telephones, then this booklet is for you. This ebook also will assist you should you have already got purposes at the Android platform and wish to realize extra wisdom of user-interface layout. it is going to entice the entire following readers:Junior Android builders MIDP builders trying to increase their skill-set iPhone builders eager to port purposes Entrepreneurial Android builders desirous to widen their consumer base "

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In this case it's a good idea to define at least a skeleton layout as XML (if possible), and then place the dynamically created View objects into the layout by using marker IDs and containers (much like dynamically adding to an HTML document in JavaScript). When building a user interface, think carefully about the look and feel of the outcome. In our example, we use Button objects for the answers to questions. We could have used RadioButton objects instead, but then the user would have needed to select an option, and then touch a Next Question button, requiring two touches.

What reason do you have for writing your layouts in XML instead of in pure Java code? a. Android can read the layout file externally for optimization. b. The layout becomes part of the resource selection process. c. Your users could download new layouts from the App Store. d. The layout can have custom themes applied to it. 2. How would we make the text of the Next Question button bold? a. Use the android:typeface attribute. b. Create a custom Button implementation. c. Add a CSS attribute: style="font-weight: bold".

FindViewById method. c. getLayout method. d. The object will be injected into a field in the Activity class. 2. What is the "best" way of listening for events in an Android application? a. Declaring the listeners as anonymous inner classes. b. Create a separate event listener class for each Activity. c. Implement the event-listening interfaces in the Activity class. 3. Why do you pass this Activity into the constructors of View objects (that is, new Button(this)). a. It defines the Activity screen they will be displayed on.

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