Download Android Programming: Pushing the Limits by Erik Hellman PDF

By Erik Hellman

Unharness the ability of the Android OS and construct the categories of awesome, leading edge apps clients like to use

If you understand your means round the Android OS and will construct an easy Android app in less than an hour, this e-book is for you. If you’re itching to determine simply how some distance you could push it and become aware of what Android is basically able to, it’s for you. And if you’re able to the best way to construct complicated, intuitive, leading edge apps which are a blast to take advantage of, this ebook is easily for you.

From customized perspectives and complex multi-touch gestures, to integrating on-line internet prone and exploiting the most recent geofencing and job popularity gains, ace Android developer, Erik Hellman, grants specialist guidance, tips and little-known recommendations for pushing the Android envelope so that you can:

Optimize your parts for the smoothest person event possible
Create your individual customized Views
Push the limits of the Android SDK
Master Android Studio and Gradle
Make optimum use of the Android audio, video and portraits APIs
Program in Text-To-Speech and Speech Recognition
Make the main of the recent Android maps and site API
Use Android connectivity applied sciences to speak with distant devices
Perform heritage processing
Use Android cryptography APIs
Find and accurately use hidden Android APIs
Cloud-enable your purposes with Google Play Services
Distribute and promote your functions on Google Play Store
Learn how you can unharness the ability of Android and rework your apps from stable to nice in Android Programming: Pushing the boundaries.

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Extra info for Android Programming: Pushing the Limits

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This is especially useful when you’ve included a large third-party library, because it can significantly reduce the final file size and memory usage during runtime. Android Library Projects and Third-Party Libraries Developers tend to write the same code over and over for new applications, which is why we create code libraries that can be reused in the next project. The result is a faster development cycle because there’s less code to write and test. Android offers you two ways to reuse code among your application projects: by using either a precompiled JAR file or a library project.

Also, many existing APIs in the Android SDK still rely on basic types as parameters—for example, the Handler class described in the “Multithreading on Android” section later in this chapter—in these cases, you don’t have much choice. 0 also introduced the enhanced for-loop that provides a generic an abbreviated expression for looping over collections and arrays. get(i)); } } These methods show four different ways of looping through collections and arrays. The first two methods have the same performance, so it’s safe to use the enhanced for-loop on arrays if you’re just going to read the entries.

Figure 2-2 Launching of new Dalvik VM instances in Android In addition to running with a different virtual machine than the one Java SE uses, Android has a different implementation of the APIs. All the APIs in Android that belong to the java or javax packages come from Apache Harmony, an open-source project aiming for reimplementation of the Java SE stack. ) In terms of developing, these APIs are identical to the ones that are found in Java SE, but some differences do exist. ) Also, not all of the Java SE APIs are available on Android because they’re irrelevant for this platform.

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