Why Eclipse Is Dead 

Want to develop an app and use over 3 projects in your workspace? Then, you have to clean your project and restart Eclipse every 2 or 3 minutes. I want to upgrade Ant, you have to spend some more hours to get back your project to life. In case you want to make your app public than you need to close all other active apps as Eclipse will crash frequently. So, Android developers were looking for a more stable IDE and were pretty happy when Google announced Android Studio (AS) in 2013, and Eclipse gradually started to lose its market share and became outdated within one year.

Eclipse couldn't challenge Android Studio as it was designed in a different way at different times. App developers can use Eclipse for distinctive platforms or for a group of different programming languages, but it couldn't adapt absolutely to the world of android app development. However, AS is designed particularly for Android development and to accelerate the android application development process and making it simpler is the prime aim of this IDE.

Both are different IDE and are not related to each other.

It is your choice to use Eclipse or Android studio both are IDE to develop Android applications. Eclipse is old and established IDE for developers. Presently 95 percent app developers are using Eclipse to produce Android apps. Android Studio is new and is in beta version and in android developer site it has clearly mentioned that it is under development some features are not implemented and you may encounter bugs.

These are the feature which is available on Android Studio but not in Eclipse

1. Maven-based build dependencies

2. Build variants and multiple-APK generation (great for Android Wear).

3. Advanced Android code completion and refactoring.

If you are a beginner, start with Eclipse ADT and then gradually try to move to Gradle based Android Studio.

You should use Android Studio as it is the official environment for developing for Android. Configuring the SDK can be quite a pain in Eclipse. You can also take advantage of the Gradle dependency system and simply specify which libraries you would like to use and Android Studio will automatically fetch the jars from online remotes as required.

Android Studio if you are new and just starting out with Android development.

Eclipse with ADT if you are working on a mission-critical application.

However, with Android Studio maturing to become full-featured, soon it would become suitable for use in developing production applications too.

Any minor’s new projects starting right now should probably just go with Android Studio.

If you are a beginner, start with Eclipse ADT and then gradually try to move to Gradle based Android Studio.

Why Android Studio, because of its very developer friendly like fast development, both from the coding perspective and UI designing. Android Studio is a more intuitive framework for coding in Android. Eclipse is good for those who have been coding in that IDE until now.

Eclipse is also better if you are programming in other environments - plugins are available for numerous languages and external settings