By Dave Smith
Android Recipes, Fourth version offers greater than a hundred down-to-earth code recipes, and courses you step by step via quite a lot of necessary themes utilizing whole and real-world operating code examples. This booklet is up to date to incorporate the Android 5.0 SDK, in addition to past releases.
Instead of summary descriptions of advanced ideas, in Android Recipes, you can find dwell code examples. for those who begin a brand new undertaking you could ponder copying and pasting the code and configuration documents from this e-book after which editing them on your personal customization needs.
Crammed with insightful guideline and invaluable examples, this fourth version of Android Recipes is your advisor to writing apps for certainly one of today’s most well liked cellular structures. It bargains pragmatic recommendation that can assist you get the activity performed fast and good. this may prevent loads of paintings over making a venture from scratch!
Android remains to be one of many top cellular OS and improvement systems using trendy cellular options and the apps environment. Android appears to be like complicated, yet deals various geared up improvement kits to these getting into Android with differing programming language ability sets.
What youll learn
- Code for Android smartphones and tablets
- Use exterior libraries to avoid wasting time and effort
- Boost app functionality through the use of the Android NDK and RenderScript
- Design apps for functionality, responsiveness, and seamlessness
- Send information among units and different exterior hardware
- Persist program info and proportion it among applications
- Capture and play again numerous equipment media items
- Communicate with internet services
- Get the main from your consumer interface
Who this booklet is for
This ebook is a convenient reference for all Android app builders.
Table of Contents
1. Layouts and Views
2. consumer Interaction
3. Communications and Networking
4. Interacting with equipment and Media
5. Persisting Data
6. Interacting with the System
7. photos and Drawing
8. operating with Android NDK and Renderscript
Read Online or Download Android Recipes: A Problem-Solution Approach for Android 5.0 PDF
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Additional resources for Android Recipes: A Problem-Solution Approach for Android 5.0
The first animation mirrors what we saw previously, to rotate the coin image once. The animation is set to repeat three times, giving us three full rotations. The default interpolator for this image is an ease-in/ease-out timing curve, which looks off with a coin flip. To provide a consistent speed throughout, we apply the system’s linear interpolator to the animation instead. The second animation causes the coin to slide up in the view during the rotations. This gives more of an effect that the coin is being tossed into the air.
The remaining two are used when a view is inflated from XML, where the attributes defined in the XML file are passed in as the AttributeSet parameter. Here we use Java’s this() notation to drill the first two constructors down to the one that really does all the work. Building the custom control in this fashion ensures that we can still define this view in XML layouts. Without implementing the attributed constructors, this would not be possible. buttonStyle to the constructor. This defines the style value that should be pulled from the current theme and applied to the view.
46 CHAPTER 1: Layouts and Views Listing 1-39. setAdapter(adapter); setContentView(list); } Adapting to a More Complex Choice Sometimes customizing the list rows means extending a ListAdapter as well. This is usually the case if you have multiple pieces of data in a single row or if any of them are not text. In this example, let’s utilize the custom drawables again for the background, but we’ll make the layout a little more interesting (see Listing 1-40). Listing 1-40. com/apk/res/android" android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal" android:padding="10dip">
Android Recipes: A Problem-Solution Approach for Android 5.0 by Dave Smith