Android Recipes: A Problem-Solution Approach by Dave Smith, Erik Hellman

By Dave Smith, Erik Hellman

Discover greater than a hundred down-to-earth code recipes, masking quite a lot of beneficial subject matters utilizing whole and real-world operating code examples. This ebook is up-to-date to incorporate the Android N SDK (7.0), in addition to past releases.

Crammed with insightful guide and invaluable examples, this 5th variation of Android Recipes is your advisor to writing apps for one among today’s most well liked cellular structures. It deals pragmatic suggestion that can assist you get the activity performed speedy and good. this may prevent loads of paintings over making a venture from scratch.

Instead of summary descriptions of complicated innovations, in Android Recipes you will find dwell code examples. if you commence a brand new venture you could give some thought to copying and pasting the code and configuration records from this e-book after which enhancing them on your personal customization wishes.

What you will Learn

  • Code for Android smartphones and tablets
  • Use exterior libraries to save lots of time and effort
  • Boost app functionality by utilizing the Android NDK and RenderScript
  • Design apps for functionality, responsiveness, and seamlessness
  • Send facts among units and different exterior hardware
  • Persist software info and percentage it among applications
  • Capture and play again quite a few machine media items
  • Communicate with internet services
  • Get the main from your person interface

Who This publication Is For

All Android app developers.

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Additional resources for Android Recipes: A Problem-Solution Approach

Sample text

UNSPECIFIED: This value is often used to figure out how big the view wants to be if unconstrained. This may be a precursor to another measurement with different constraints, or it may simply be because the layout parameters were set to wrap_ content and no other constraints exist in the parent. The view may report its size to be whatever it wants in this case. The size in this spec is often zero. Once you have done your calculations on what size to report, those values must be passed in a call to setMeasuredDimension() before onMeasure() returns.

Listings 1-17 and 1-18 show how we can use this to construct a simple coin-flip animation. Listing 1-17. com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent"> Listing 1-18. onTouchEvent(event); } } Property animations provide transformations that were not previously available with the older animation system, such as rotations about the x and y axes that create the effect of a three-dimensional transformation.

Listing 1-25. com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" >

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