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How to Add Fingerprint Authentication in Android

In this tutorial, we’ll learn how add fingerprint authentication in an android app. With the FingerprintManager API, Google has created a native approach for fingerprint authentication across all Android devices. Developers can now authenticate their users on an app-by-app basis for everything from mobile purchases to app sign-in screens and more with just the tap of a […]


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How to avoid Force Close Error Dialog in Android

In this tutorial, we’ll use the Thread.UncaughtExceptionHandler to avoid force close error dialog in an Android app.   Theory on Application Crash Reports for Android (ACRA): All android developer must have faced force close issue while developing an application. As soon as a thread terminates due to an uncaught exception, JVM will query the thread […]


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Generate or Read Bar Code & Qr Code in Android using Zxing lib

In this tutorial, we’ll use the ZXing (Zebra Crossing) library to generate or read barcode & qrcode within an Android app. QR code (abbreviated from Quick Response Code) is the trademark for a type of matrix barcode (or two-dimensional barcode) first designed for the automotive industry in Japan. Bar codes are optical machine-readable labels attached to items […]


Firebase Realtime Database Integration in Android 2

This tutorial describes the usage of the Firebase Realtime Database service in Android. If you don’t know what is Firebase and how to setup in android studio, then please through this previous blog. So lets starts with Realtime Database service: To write your Firebase Realtime Database service, use the FirebaseDatabase API. The instructions in this page assume that you have […]


Firebase Authentication – Login & Signup in Android 7

This tutorial describes the usage of the Firebase Authentication service in Android. If you don’t know what is Firebase and how to setup in android studio, then please go-through this previous blog. Firebase’s built-in auth services that can handle user login entirely with client-side code, saving you time and the headache of operating your own […]


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Firebase Cloud Messaging (FCM) – Push Notification in Android

At I/O 2016, Google introduced an all new & updated version of Firebase, offering a comprehensive solution for creating a back-end infrastructure for mobile and the web. Initiallly, Firebase was a Mobile-Back-end-as-a-Service (MBaaS) but now Google has transformed it into a complete back-end solution for both mobile and web development. Firebase has one SDK and a […]