Change Android app icon

To change the application icon based on the number of notifications in the notification center, follow the steps below.

1. Add a new icon to your project in the ‘mipmap’ folder.

2. Create a new Activity class.

import android.os.Bundle;
import androidx.appcompat.app.AppCompatActivity;

public class MainActivityAlias extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

    }
}

3. Create a class with the logic for changing the icon.

import android.content.ComponentName;
import android.content.Context;
import android.content.pm.PackageManager;

public class MyPushReceiver  {

    public static void changeAppIcon(Context context, int count) {
        PackageManager pm = context.getPackageManager();
        if (count > 0) {
            pm.setComponentEnabledSetting(
                    new ComponentName(context, "com.example.app.MainActivityAlias"),
                    PackageManager.COMPONENT_ENABLED_STATE_ENABLED,
                    PackageManager.DONT_KILL_APP
            );
            pm.setComponentEnabledSetting(
                    new ComponentName(context, "com.example.app.MainActivity"),
                    PackageManager.COMPONENT_ENABLED_STATE_DISABLED,
                    PackageManager.DONT_KILL_APP
            );
        } else {
            pm.setComponentEnabledSetting(
                    new ComponentName(context, "com.example.app.MainActivity"),
                    PackageManager.COMPONENT_ENABLED_STATE_ENABLED,
                    PackageManager.DONT_KILL_APP
            );
            pm.setComponentEnabledSetting(
                    new ComponentName(context, "com.example.app.MainActivityAlias"),
                    PackageManager.COMPONENT_ENABLED_STATE_DISABLED,
                    PackageManager.DONT_KILL_APP
            );
        }
    }
}

4. In your NotificationServiceExtension class, implement tracking for receiving/deleting push notifications.

@Override
public boolean onMessageReceived(final PushMessage message) {
  super.onMessageReceived(message);

  if (!message.isSilent()) {
    /**
     * In this example, a random number of notifications is simply indicated.
     * You need to implement the logic for counting notifications yourself.
     */
    int notificationCount = 1;

    if (getApplicationContext() != null) {
      MyPushReceiver.changeAppIcon(getApplicationContext(), notificationCount);
    }
  }
}

/**
* Pushwoosh callback for tracking push notification removal from Notification Center.
*/
@Override
protected void onMessageCanceled(PushMessage message) {
  super.onMessageCanceled(message);

  if (!message.isSilent()) {
    /**
    * In this example, a random number of notifications is simply indicated.
    * You need to implement the logic for counting notifications yourself.
    */
    int notificationCount = 0;

    if (getApplicationContext() != null) {
      MyPushReceiver.changeAppIcon(getApplicationContext(), notificationCount);
    }
  }
}

5. Done!

Example of how it looks on the device