By Erik Hellman
Unharness the facility of the Android OS and construct the categories of excellent, cutting edge apps clients like to use
If you understand your method round the Android OS and will construct an easy Android app in lower than an hour, this booklet is for you. If you’re itching to work out simply how some distance you could push it and notice what Android is admittedly 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 exploit, this publication 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, offers specialist information, methods and little-known ideas for pushing the Android envelope so that you can:
Optimize your parts for the smoothest person event possible
Create your personal customized Views
Push the bounds of the Android SDK
Master Android Studio and Gradle
Make optimum use of the Android audio, video and pictures APIs
Program in Text-To-Speech and Speech Recognition
Make the main of the hot Android maps and site API
Use Android connectivity applied sciences to speak with distant devices
Perform heritage processing
Use Android cryptography APIs
Find and competently use hidden Android APIs
Cloud-enable your functions with Google Play Services
Distribute and promote your functions on Google Play Store
Learn easy methods to unharness the facility of Android and rework your apps from solid to nice in Android Programming: Pushing the boundaries.
Read Online or Download Android Programming: Pushing the Limits PDF
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Extra info for Android Programming: Pushing the Limits
A user doesn’t behave according to a certain pattern all the time. Users can click a button at an unexpected moment or accidentally click the wrong button, which can cause your application to crash. You basically need something that behaves like a user would, or better yet, like a monkey would! The Android SDK comes with a powerful tool called the Application Exerciser Monkey, or simply, Monkey. This is a command-line tool that allows you to generate pseudo-random user events like touches or system events on a device.
While building and running your project is supported directly in the Android Studio IDE, you can interact with the build system through the command line as well. Gradle defines a number of tasks and to list all available tasks, simply type the following from the root of your Android project. /gradlew tasks If you, for instance, want to build the application from scratch you would run the following. /gradlew clean build This will execute first the clean task, followed by the build task. 16 Part I: Building a Better Foundation Figure 1-1: The directory structure and Gradle build file shown in the Android Studio IDE Migrating Existing Projects to Gradle Since most existing Android projects are not using the Gradle build system, a migration guide might be in order.
You can also set scaling parameters for animations and transitions as well as disable them completely for debugging purposes. 2 is the possibility to simulate a secondary screen. 2, this feature makes it easy to develop multi-screen applications without having to connect your device to a real secondary screen. Instead, the Android system will draw an overlay on top of the standard user interface that simulates this second display. Under Monitoring, you find some options that can prove invaluable for ensuring that your device runs smoothly.