Learning Android Intents
Muhammad Usama bin Aftab, Wajahat Karim
Format: PDF / Kindle (mobi) / ePub
Explore and apply the power of intents in Android application development
About This Book
- Understand Android Intents to make application development quicker and easier
- Categorize and implement various kinds of Intents in your application
- Perform data manipulation within Android applications
Who This Book Is For
If you are a novice or an intermediate Android Developer who wants to expand their knowledge of Android Intents, this book is ideal for you. Readers are expected to have basic understanding of Android development, how to use different IDEs, and how to develop applications using Android APIs.
What You Will Learn
- Understand Android Intents and their importance in Android apps
- Get to grips with the different types of Intents and their implementation
- Discover data transfer methods in Android Intents along with their optimization and performance comparisons
- Explore the implementation of Intents while invoking Android Features in an application.
- Use Intent Filters and their sub-domains in order to perform various actions and sorting categories in Android Intents
- Catch different events while working with Broadcast Receiver and perform various actions
- Implement pending Intents and Intent Service, sending text to the Notification Panel, and much more
Android is an emerging technology with loads of apps in the Google Play Market. Till date, it is the biggest marvel in Smartphone technology, propelling a larger number of developers into Android application development. Intent is an essential part of any Android Application and no Android application is complete without using them. Features such as listening broadcasts, sending messages, sharing via social networks, notifications, hardware components including camera, sensors, Wi-Fi, and more, can be used in your applications by using Intents.
This practical guide focuses on using intents to make the best use of various features of Android platform. It is ideal for those developers who want to understand the backbone and the domain of Android Intents, its power, and the need for it inside an Android application. Practical, in-depth examples are used throughout the book, to help you understand the key concepts.
The book starts with introducing the very basic concepts of Android, and its various facts and figures such as different Android versions, their release dates, evolution of Android phones and so on. While covering the basic technical concepts, it proceeds from the easiest route of introducing Android Intents towards the more practical view of Android Intents in terms of components and features.
You will learn how to use different components and features such as transfer data between activities, invoke various features and components of Android, execute different in-built and custom-made services, use hardware and software components of Android device, and start Pending Intents & notifications. You will gain better theoretical knowledge of what is running behind the concepts of Android Intents, and practical knowledge of the mobile-efficient ways to perform a certain task using Android Intents.
Towards the end, you will have a clear vision and a practical grip on Android intents and its features. Learning Android Intents is a proper guide to give you the best knowledge of Intents.
developer can control the Activity lifecycle using callback methods. It is a good practice to use the onPause() and onResume() methods for data management, whether the activity remains foreground or not, and onCreate() and onDestroy() should be used for only initial data management and cleaning up the resources respectively. All callback methods except the onCreate() method take no parameter or argument. In case of a critical memory situation, if an activity is destroyed, then that instance state
summary of the benefits that we can take from the Android Intents. The scope lies in the various factors of Android Activities, services, data transfer, and many other things. We will see this in the following list: • Activity transition from one activity to another • Data transfer from one activity to another • Making connection with Wi-Fi and Bluetooth • Accessing Android Camera [ 34 ] Chapter 2 • GPS sensor to get current location • Sending SMS and MMS • Customizing mobile calls •
application framework provides developers with the access to Bluetooth functionality through Android Bluetooth APIs. [ 96 ] Chapter 4 The Cellular component No mobile phone is complete without a cellular component. Each Android phone has a cellular component for mobile communication through SMS, calls, and so on. The Android system provides very high, flexible APIs to utilize telephony and cellular components to create very interesting and innovative apps. Global Positioning System (GPS) and
a given point on the Earth and, in particular, to compute magnetic declination from the North. The geomagnetic field component uses the World Magnetic Model produced by United States National Geospatial-Intelligence Agency. The current model that is being used for the geomagnetic field is valid until 2015. Newer Android phones will have the newer version of the geomagnetic field. Sensor components Most Android devices have built-in sensors that measure motion, orientation, environment
is for Learning Android Intents is geared toward novice or intermediate developers who want to expand their knowledge of Android Intents. Readers are expected to have a basic understanding of Android development, how to use different Android IDEs, and how to develop applications using native Android SDK APIs. This book is useful for every Android application developer. Starting with the first few chapters, the reader will begin to work with the basics of intent, and even intermediate developers