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Android JSON Tutorial: Create and Parse JSON data

This tutorial describes how to use JSON with Android. JSON stands for (Java Script Object Notation). It is a simple and light-weight data interchange format that can be easily read by humans and machines. JSON is a text format that is language independent. It represents data in a text format so that can be easily parsed. Introduction to JSON JSON uses two different of ...

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Android SlidingPaneLayout: Tutorial

In this post, we want to show how to use SlidingPaneLayout. This is an interesting component that can be used when we want to have a multi-pane horizontal layout. This component is divided in two different parts: left side: The master part. It usually contains a list of values (i.e. Contacts and so on) right side: The detail part. It ...

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Android Image Filters

Introduction Image Filter allows you to add various effects on image. There are mainly two purpose of Image Processing: Image Understanding: It is used to identify content of image, weather image has human faces, objects (bus, train, etc.), measure dimension of objects,etc. OpenCV (Open Source Computer Vision Library) is one of the main library used for Image Understanding. Image Beautify : ...

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In Depth : Android Shutdown Sequence

What happened when I long press power button ? What is shutdown sequence ? How is it different from desktop linux shutdown sequence? How to change shutdown menu ? Many questions pop-up in mind when we think about Android shutdown sequence. Before you read about shutdown sequence I suggest you to read about boot sequence article. Android is linux based ...

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Android NotificationListenerService Example

Introduction NotificationListenerService is introduced in Android 4.3 (API 18). It allows an application to receive information about notifications as it creates or removes. NotificationListenerService class is derived from the Service class. It has two abstract methods namely 1. onNotificationPosted 2. onNotificationRemoved. To use NotificationListenerService, we need to create a java file which extends NotificationListenerService and implement two callback methods. Both ...

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Augmented Reality : Introduction of Metaio SD

Metaio SDK is advanced as compared to Vuforia SDK, Metaio SDK is developer friendly such that any beginner or novice developer can develop good quality of AR application. High-level system overview 1. Setup Metaio SDK 4.5 I assume that you already have Android SDK and NDK setup in computer. Step 1: Download Metaio SDK 4.5 for Android http://dev.metaio.com/sdk/getting-started/ Step 2: ...

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Introduction to Android Studio

Feeling good to be back at blog . Actually I have been managing GDG Ahmedabad, delivering android talks and managing workshops locally and outside my regions. Last month, I was quite busy in organizing “DevFest” event for the GDG Ahmedabad and then for the preparation of my 2 talks for the GDG Kathmandu DevFest. I was invited to deliver 2 ...

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Android Augmented Reality: Introduction of Vuforia SDK

The Vuforia™ SDK allows you to build vision-based augmented reality applications. It is available for Android, iOS and as an Extension to Unity – a cross-platform game engine. High-level system overview           Multiple trackables (tracking types): Image Targets Multi-Targets Cylinder Targets Word Targets Frame Markers Real-world Interactions Virtual Buttons 1. Setup Vuforia SDK v2.6 I assume ...

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