By James Steele, Nelson To
Are looking to start construction functions for Android, the world’s most popular, fast-growing cellular platform? Already development Android functions and wish to get well at it? This booklet brings jointly the entire professional guidance–and code–you’ll want!
Completely updated to mirror the latest and most generally used Android SDKs, The Android Developer’s Cookbook is the fundamental source for builders development apps for any Android gadget, from telephones to capsules.
Proven, modular recipes take you from absolutely the fundamentals to complex location-based providers, safeguard options, and function optimization. You’ll the right way to write apps from scratch, be sure interoperability, select the simplest strategies for universal difficulties, and steer clear of improvement pitfalls. assurance comprises:
* imposing threads, prone, receivers, and different historical past tasks
* delivering consumer alerts
* Organizing consumer interface layouts and views
* coping with user-initiated occasions akin to touches and gestures
* Recording and enjoying audio and video
* utilizing APIs to be had on Android devices
* Interacting with different units through SMS, internet looking, and social networking
* Storing facts successfully with SQLite and its alternatives
* getting access to place info through GPS
* utilizing location-related providers resembling the Google Maps API
* development speedier purposes with local code
* offering backup and fix with the Android Backup Manager
* trying out and debugging apps during the improvement cycle
Turn to The Android Developer’s Cookbook for confirmed, professional answers–and the code you want to enforce them. It’s all you must jumpstart any Android venture, and create high-value, feature-rich apps that promote!
Read or Download The Android Developer's Cookbook: Building Applications with the Android SDK (Developer's Library) PDF
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Additional info for The Android Developer's Cookbook: Building Applications with the Android SDK (Developer's Library)
Note that unlike other activities, implicit intents that reside in other applications do not need to be declared in the current application’s AndroidManifest file. When a new component is developed that meets the required implicit intent filter, it can be used in place of an Android internal intent. When a user selects a contact, the Android system finds all available activities with the proper intent filter for viewing contacts and asks the user to decide which one should be used. The steps to adding a button to a given layout and assigning an action to a button press are 1.
The steps for using RecognizerIntent are 1. Declare an intent with action ACTION_RECOGNIZE_SPEECH. 2. This can be set as either LANGUAGE_MODEL_FREE_FORM or LANGUAGE_MODEL_WEB_SEARCH. 3. The returned data bundle contains a list of strings with possible matches to the original text. This should be cast as an ArrayList for use later. 14. The RecognizerIntent activity is native to the Android system and does not need to be declared explicitly to be utilized. This can be easily implemented utilizing ListActivity, a subclass of Activity, and triggering an event based on what choice was made.