> For the complete documentation index, see [llms.txt](https://docs.mfilterit.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.mfilterit.com/mfilterit-sdk/mfilterit-uninstall-tracking.md).

# mFilterIt Uninstall Tracking

This guide details the steps to integrate the MFilterIt Uninstall tracking into an Android App.

## Getting Started

Integrating the mFilterIt Uninstall Tracking solution into an app includes SDK integration and sharing FCM details with the SDK, and mFilterIt backend.

## Uninstall Tracking Integration

The  integration of this feature can be done by following below steps:

**Step 1** : Integrate the mFilterIt Android SDK and share the FCM token to the SDK.

**Step 2** :  In order integrate FCM into a project the below steps have to be taken.

1. Modify the AndroidManifest.xml and integrate firebase cloud massaging service. FCM setup guidelines are [here](https://firebase.google.com/docs/cloud-messaging/android/client). Below is a code snippet:

```
<!--firebase cloud messaging tags start-->
<service android:name=".MyFirebaseMessagingService">
    <intent-filter>
        <action android:name="com.google.firebase.MESSAGING_EVENT" />
    </intent-filter>
</service>
<meta-data
    android:name="firebase_analytics_collection_enabled"
    android:value="false" />
<!--firebase cloud messaging tags end-->
```

2\. Add following dependencies in build.gradle for app module:

```
compile 'com.google.firebase:firebase-core:16.0.5'
compile 'com.google.firebase:firebase-messaging:17.3.4'
```

3\. Add plugin for google-services in build.gradle for app module:

```
apply plugin: 'com.google.gms.google-services'
```

4\. Add google services dependencies in project build.gradle file:

```
buildscript {
    repositories {
        jcenter()
    }
    dependencies {
   classpath 'com.google.gms:google-services:4.0.1'
        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }

}
```

**Step 3** : Pass FCM token using this method:

```
MFilterIt.sendEvent(Context context, String vendorId,String eventArray,String eventType);
```

| Parameter  | Description                                                                                                                                                                                                                                                                                                                                                              |
| ---------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| context    | Context object returned by getApplicationContext                                                                                                                                                                                                                                                                                                                         |
| vendorId   | <p>This is a unique Vendor ID string allocated to the app developer.<br></p>                                                                                                                                                                                                                                                                                             |
| eventArray | <p>A JSON string that captures the array of events to be sent.</p><p></p><p> For example the below string sends two events called event1 and event2, with values value1 and value2     </p><p>"{ 'event1' : 'value1' , 'event2' : 'value2'}"  One of the keys in the event should be FCM\_TOKEN , which contains, fcm token generated by device running application.</p> |
| eventType  | This should be a hardcoded value passed as "UninstallEvent", for uninstall tracking.                                                                                                                                                                                                                                                                                     |

The below is a code snippet of how the  sendEvent API is invoked:

```
package com.mfilterit.demoapp;

import com.google.firebase.messaging.FirebaseMessagingService;
import com.google.firebase.messaging.RemoteMessage;
import com.mfilterit.MFilterIt;


public class MyFirebaseMessagingService extends FirebaseMessagingService {


    @Override
    public void onMessageReceived(RemoteMessage remoteMessage) {
        try{
        if (remoteMessage.getData().size() > 0) {
            Log.d("data:",remoteMessage.getData().toString());


        }
        }catch (Exception e){
            Log.d("error_term1");
        }
    }

    public void onNewToken(String s) {
    
        try{
    
    
            MFilterIt.sendEvent(this, "vendorId",s,"UninstallEvent");
    
        }
    catch (Exception e ){
            Log.d("error_term2");
        }
    }
}
```

**Step 4** : The below import statement needs to be added to the corresponding files (if needed).

`import com.mfilterit.MFilterIt;`

**Points to remember :**\
&#x20;In order for the mFilterIt System to track the uninstalls, the  Server Key and Sender Id need to be configured in the mFilterIt Dashboard.