Which among the following is/are the tool(s) that helps us in UI testing in Android? Apium Espresso Selendroid

All three tools mentioned - Apium, Espresso, and Selendroid - are used for UI testing in Android.

1. Apium: It is an open-source tool used for automating mobile, web, and hybrid applications on iOS mobile, Android mobile, and Windows desktop platforms. Apium supports platforms such as Android, iOS, and Windows desktop, making it a versatile tool for UI testing.

2. Espresso: This is a testing framework for Android which automatically synchronizes your test actions with the UI of your app. It also lets the test wait until all the background activities have finished. Espresso has an API that is small, predictable, easy to learn and built on top of the Android instrumentation framework.

3. Selendroid: It is a test automation framework which drives off the UI of Android native and hybrid applications (apps) and the mobile web. Tests are written using the Selenium 2 client API. Selendroid can be used on emulators and real devices and can be integrated as a node into the Selenium Grid for scaling and parallel testing.

So, all three tools - Apium, Espresso, and Selendroid - are used for UI testing in Android.