Professional Android 4 Application Development
Developers, construct cellular Android apps utilizing Android 4
The fast-growing approval for Android smartphones and capsules creates an important possibilities for builders. in case you are an skilled developer, you can begin developing powerful cellular Android apps instantaneously with this expert advisor to Android four program improvement. Written via one in every of Google's lead Android developer advocates, this useful e-book walks you thru a chain of hands-on initiatives that illustrate the good points of the Android SDK. that incorporates the entire new APIs brought in Android three and four, together with construction for drugs, utilizing the motion Bar, wireless Direct, NFC Beam, and more.
- Shows skilled builders the best way to create cellular functions for Android smartphones and tablets
- Revised and accelerated to hide the entire Android SDK releases together with Android 4.0 (Ice Cream Sandwich), together with all up-to-date APIs, and the newest adjustments to the Android platform.
- Explains new and more desirable gains akin to drag and drop, fragments, the motion bar, superior multitouch help, new environmental sensor aid, significant advancements to the animation framework, and more than a few new communications strategies together with NFC and wireless direct.
- Provides useful suggestions on publishing and advertising your functions, most sensible practices for person event, and more
This ebook is helping you discover ways to grasp the layout, lifecycle, and UI of an Android app via functional workouts, which you could then use as a foundation for constructing your individual Android apps.
participant the knowledge saved and utilized by lots of those local purposes — equivalent to touch info — also are to be had to third-party functions. equally, your purposes can reply to occasions comparable to incoming calls. the precise make-up of the purposes on hand on new Android telephones is probably going to change in line with the producer and/or the telephone service or distributor. The open-source nature of Android implies that providers and OEMs can customise the person interface and the purposes.
clear out utilizing Intents to Broadcast occasions Broadcasting occasions with Intents Listening for pronounces with Broadcast Receivers Broadcasting Ordered Intents Broadcasting Sticky Intents Introducing the neighborhood Broadcast supervisor Introducing Pending Intents growing purpose Filters and Broadcast Receivers utilizing reason Filters to carrier Implicit Intents How Android Resolves motive Filters discovering and utilizing Intents got inside an job Passing on accountability making a choice on a touch instance utilizing.
Constants, akin to borders and font heights. To specify a size source, use the dimen tag, specifying the measurement price, by way of an identiﬁer describing the size of your measurement: c03.indd sixty seven ‰ px (screen pixels) ‰ in (physical inches) 4/11/2012 10:06:21 AM Meier c03.indd V1 - 02/11/2011 web page sixty eight sixty eight x bankruptcy three developing functions AND actions ‰ pt (physical issues) ‰ mm (physical millimeters) ‰ dp (density-independent pixels) ‰ sp (scale-independent pixels).
model — the objective API point, speciﬁed within the shape v