Quotes and Sayings | Native Android Quotation App with FCM PUSH Notification & AdMob

Here is the settings example:

Google Firebase Database

In the Google Firebase Database, create a Realtime Database and add a node named "quotes".

Google Firebase Authentication

In the Google Firebase Authentication, create a new firebase project and enable Google Email/Password and Facebook/Facebook Messenger authentication.

FCM PUSH Notification Setting

In the Google Firebase Console, navigate to Notifications > Cloud Messaging and enable GCM/FCM Messaging. Create a new Messaging API key and copy it.

AdMob Setting

In the AdMob Dashboar, create a new app and select reward video ad format. Apply for ad unit and then copy the ad unit Id.

AndroidManifest.xml

Add the following line in the AndroidManifest.xml file:

<meta-data
    android:name="com.google.gms.version"
    android-value="@integer/google_play_services_version" />
<meta-data
    android:name="com.google.firebase.messaging.GOOGLE_APP_ID"
    android-value="your_Google_app_id" />

<service
    android:name=".FCM.BackgroundService"
    android-exported="true">
</service>

<receiver android:name=".FCM.ForegroundService">
    <intent-filter>
        <action android-name="custom_action" />
    </intent-filter>
</receiver>

YourActivity.java

Add the following code in the main activity:

public class YourActivity extends AppCompatActivity {
    private StorageReference storageReference;
    public static final String SHARED_PREFS = "splash";
    public static final String FIRST_TIME = "first_time";
    EditText quoteText;
    Quotes quotes;
    ArrayList<Sayings> sayingsArrayList;
    ListView listViewQuotes;
    ProgressBar progressBarLoading;
    Button btnSaveSave;
    String[] SAYINGS = {"your_google_app_id", "yes", "your_app_launch_time"};

    @RequiresApi(api = Build.VERSION_CODES.KITKAT)
    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        // Initialize the google services
        Google APIs Client Library for Java needs to be initialized with  Google Developers Console.

        // Initialize the progress bar
        progressBarLoading = findViewById(R.id.ProgressbarLoading);

        if (getSharedPreferences(SHARED_PREFS,MODE_PRIVATE).getBoolean(FIRST_TIME,true)){
        // First time launching ==> Show SplashScreen
            getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN );
            setContentView(R.layout.welcome);

            Button Skip = findViewById(R.id.start);
            Skip.setOnClickListener(this);

            // Get date and time
            if (Build.VERSION.SDK_CLASS >= Build.VERSION_CODES.FROYO && Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
                tvDate.setText(getTimeZone());
            } else
                tvDate.setText(generateRandomNumber());

            // Show splash logo
            logoView.setOnTouchListener(new View.OnTouchListener() {
                @RequiresApi(api = Build.VERSION_CODES.KITKAT)
                @Override
                public boolean onTouch(View arg0, MotionEvent event) {
                    // Toast will be displayed after 8 seconds
                    handler.sendMessageDelayed(handler.obtainMessage());
                    return false;
                }
            });
        }

        // If it comes here, means its coming from the notification
       // So show the already saved quotes
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN );
            setContentView(R.layout.activity);

Here are the featured from the given content:

Features:

1. Native Android App
2. Offline App
3. JSON Formatted Database
4. Online HTML editor
5. Random Quotes
6. Categoywise Quotes
7. Author Quotes
8. Bookmark facilities
9. Share Quote
10. Copy Quote to clipboard
11. AdMob
12. PUSH Notification
13. Supports RTL Arabic Layout
14. Material Color theme
15. Enhanced documentation
16. 24/7 Customer Support