https://steemitimages.com/DQmSqM7eLffLKKEpShcQFEqR4EQ1BpY3gfXrUdUgMXCJGiJ/maxresdefault.jpg

[English]

This time I will try some of my experiences regarding android. Do you know if we want to create an application that has backend process we must understand as with Authentication, Database, etc .. It's called service. But there are things that need us to do the process. Ever heard of Firebase? Yes, certainly many who heard it for people who like the android or indeed android programmers. Here I will try to explain what is Firebase and how to make make Simple Login android with firebase.

Firebase is a Service Platform created by Google.Inc for the convenience of developers. Interestingly it is not the plataform but the Backend Service (BaaS). So all the features provided are for the ease of the Backend process. The features are :

1. Firebase Analytics.
2. Firebase Cloud Messaging dan Notifications.
3. Firebase Authentication.
4. Firebase Remote Config.
5. Firebase Real Time Database.
6. Firebase Crash Reporting.

But at this time I will try to show how to use Authentication and Real Time Database on simple android login application. The first thing to do is create a project in android studio.

Then go to https://console.firebase.google.com/u/0/

then add project and project contents for example like in this picture:

https://steemitimages.com/DQmY4kxrhNnELmRsUXAPMrUoJ1z74w3bY4bPUeZkxTDg6s6/Screen%20Shot%202018-01-26%20at%2018.02.24.png

then select Add Firebase to your Android App, then will appear form like this :

https://steemitimages.com/DQmeVvkroQzs6WG2PrTwWPd5VAeBNkmkF563fTgoHgaWMby/Screen%20Shot%202018-01-26%20at%2018.15.30.png

Then fill in the data as shown below:
1. In the first column fill with the name of your Package project in Android Studio
2. In the second column fill with your App Name
3. In the third column fill with the SHA code of your Signing Project debug.

To get the code, open the right sidebar on Gradle and debug the signinReport file as shown below:

https://steemitimages.com/DQmZz9hXwNC51dm4DRxp8k5eZcKJtdqhdT4VEqgnxgdQu6W/Screen%20Shot%202018-01-26%20at%2018.12.15.png

Then see the debug results on the console android and you will get the code, look like the picture below:

https://steemitimages.com/DQme7AHy2fuhP9LthCDAnNCR6ghnVsZFQoSQEpBa8daaHC6/Screen%20Shot%202018-01-26%20at%2018.15.11.png

Then copy the code to the previous form and click Register App, then you will download the file google-service.json or you can follow the command as in the picture below.

https://steemitimages.com/DQmeREVpkq8yBCuVuFjxWzeAJ1EUGTSwz8nUxwFouM1khZf/Screen%20Shot%202018-01-26%20at%2018.16.13.png

So after doing the command as in the picture below, then click Continue. Then open the build.gradle (Project) file and add the line as shown below:

https://steemitimages.com/DQmVVMR1Dy5pwZYPm9N31gfLHQ44pErffaV9tAJ8ZzhTLas/Screen%20Shot%202018-01-26%20at%2018.19.16.png

Then open the build.gradle file (Module: app) and add the line as shown below:

https://steemitimages.com/DQmaVJQTwXjDCpMfgBSppx3z2XAJeLBHDk1BTS6CHUJdjYn/Screen%20Shot%202018-01-26%20at%2018.19.00.png

So after doing the steps above, then do not forget click Sync Now to sync your project again. And after that we can start using Firebase on your project.

Because at this time we will only try how to use Firebase Authentication and Database, then I will only display the script for register and login process. To design you can try it yourself. First of all initialize the classes that you want to use and place outside the onCreate method, see as illustrated below:

https://steemitimages.com/DQmVpajB14oKcgAqm1KQ1avPPewqY1TZYoNkt7N1aZqsc6U/Scree