By Jeff Friesen, Dave Smith
Android remains to be one of many top cellular OS and improvement structures riding today's cellular techniques and the apps atmosphere. Android appears to be like advanced, yet deals numerous geared up improvement kits to these entering Android with differing programming language ability units.
Android Recipes: A Problem-Solution method, moment Edition bargains greater than a hundred down-to-earth code recipes, and publications you step by step via quite a lot of worthy subject matters utilizing entire and real-world operating code examples. It's up-to-date to incorporate the Jelly Bean Android SDK in addition to previous releases.
rather than summary descriptions of advanced techniques, in Android Recipes, you'll locate dwell code examples. if you happen to begin a brand new undertaking, you could examine copying and pasting the code and configuration records from this ebook, then enhancing them on your personal customization wishes.
full of insightful guide and worthwhile examples, this moment variation of Android Recipes is your advisor to writing apps for one among today’s most well liked cellular systems. It deals pragmatic suggestion that can assist you get the activity performed speedy and well. this may prevent loads of paintings over making a venture from scratch!
<h3>What you’ll learn</h3>• 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 facts and percentage it among applications
• Capture and play again a variety of gadget media items
• Communicate with net services
• Get the main from your consumer interface
• Develop a unit conversion app within the context of the command-line/Android SDK and Eclipse/Android SDK environments
<h3>Who this booklet is for</h3>
This e-book is a convenient reference for all Android app developers. rookies can also locate this of curiosity, too.
<h3>Table of Contents</h3>1. Getting began with Android
2. consumer Interface Recipes
three. Communications and Networking
four. Interacting with gadget and Media
five. Persisting facts
6. Interacting with the approach
7. operating with Libraries
eight. operating with Android NDK and Renderscript
nine. Appendix A: Scripting Layer for Android
10. Appendix B: Android instruments review
eleven. Appendix C: App layout directions
12. Appendix D: Univerter structure
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Extra resources for Android Recipes: A Problem-Solution Approach (2nd Edition)
Screen pixel density: Specify ldpi for low-density screens (approximately 120 dpi [dots per inch]), mdpi for mediumdensity (on traditional HVGA) screens (approximately 160 dpi), hdpi for high-density screens (approximately 240 dpi), xhdpi for extra high-density screens (approximately 320 dpi), nodpi for bitmap resources that are not to be scaled to match the device’s screen pixel density, or tvdpi for screens somewhere between mdpi and hdpi (approximately 213 dpi). The xhdpi qualifier was added in API Level 8 and the tvdpi qualifier was added in API Level 13.
1 API Level 16 for the target platform (this should be the only choice), and enter 100 into the Size field for the SD card.
No checks with the user are done while an app is running. It was granted a specific permission when installed and can use that feature as desired, or the permission was not granted and any attempt to use the feature will fail without prompting the user. xml provides additional information, such as naming any libraries that the app needs to be linked against (besides the default Android library), and identifying all app-enforced permissions (via