
firebaseproject import import 7.widget.RecyclerView import import import import public class ViewHolder extends RecyclerView. Implementation 'com.firebaseui:firebase-ui-database:0.4.0'ĪndroidTestImplementation ':runner:1.0.2'ĪndroidTestImplementation '.espresso:espresso-core:3.0.2'Īpply plugin: '-services'

Open android studio, create new project, and Write the below code in activitymain.

For that simply we need a button on the interface, when the button is pressed, a Toast message will be shown. First, you need to define a trigger point to pop up a Toast message in android. Implementation ':firebase-database:11.8.0' Example: Create a simple toast message in android. Implementation ':constraint-layout:1.1.0' Implementation fileTree(dir: 'libs', include: ) ProguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'

TestInstrumentationRunner ".AndroidJUnitRunner"
