In this tutorial we are going to create a simple app to display the list of apps installed on a device . We’ll also have the option to filter the list to display only the apps installed by the user or only the system apps . You may also like …
Let me start with the truth – “ViewModel is a choice , not a compulsion” . You can use any architecture that works for you , and probably you have one ( if you don’t then please have one as bloating your UI components is the worst practice ) . …
In this post we are going to explore some of the problems that can be solved by using LiveData . A ViewModel must never reference a view, Lifecycle, or any class that may hold a reference to the activity context. A ViewModel lives longer than an Activity or a Fragment …
During the flow of any app we often need to prompt the user to make some decision e.g. Deleting a file , posting comment etc . Below is the most simple way to show a promt . Here we are using AlertDialog to show a single button dialog , we …
Lists are the most common ways of representing collections of similar data . Thus a RecyclerView is a widget that we Android developers have to deal with very frequently . Following are the steps involved in implementing a RecyclerView . In this tutorial we shall implement the recyclerview using Kotlin. …
How to start a new activity ? How to pass a value from an activity to the other ? Probably these questions have come to your mind if you have just started using Kotlin for developing android apps . By the end of this post you’ll have all the answers …
We no more need findViewById() again , as Kotlin Android Extensions is here . Probably you have used the Butterknife library to avoid writing findViewById() again and again . But with Kotlin Android Extensions plugin its even easier . The process can be summerized in three steps as below : …
Are you planning to use Kotlin for your next app , or excited to explore some Kotlin; but not sure where to start !! Let us start with a simple android activity . A simple activity Below is our MainActivity which does nothing except loading the layout from activity_main.xml layout …
1. Create a new android project 2. Set up Firebase Authentication for android 3. Check if the user is already logged in -Create instances of FirebaseAuth and FirebaseAuth.AuthStateListener (e.g. mAuth and mAuthStateListener repectively) -Add the mAuthStateListener to the mAuth object inside onStart() -Remove the auth state listener inside onStop() 4. …
Integration of social login is one of the most common tasks in app development , whether it is a mobile app or a website. Social login makes it easier for the user to login and try the app . Thus in this post we’ll learn to implement google login for …