show_in_forground doesn't work

I'm using RN 35.0 and Android 6.0. Below is my code.

```
componentDidMount() {
this.notificationUnsubscribe = FCM.on('notification', (notif) => {
// there are two parts of notif. notif.notification contains the notification payload, notif.data contains data payload
if(notif.local_notification){
//this is a local notification
}
if(notif.opened_from_tray){
//app is open/resumed because user clicked banner
}

console.log(notif)

// FCM.getBadgeNumber().then(number =>
// FCM.setBadgeNumber(number + 1)
// )

if (!notif.local_notification) {
FCM.presentLocalNotification({
title: "My Notification Title", // as FCM payload
body: notif.body, // as FCM payload (required)
sound: "default", // as FCM payload
priority: "high", // as FCM payload
click_action: "ACTION", // as FCM payload
large_icon: "ic_launcher", // Android only
icon: "ic_notification", // as FCM payload
color: "red", // Android only
vibrate: 300, // Android only default: 300, no vibration if you pass null
lights: true, // Android only, LED blinking (default false)
show_in_foreground: true, // notification when app is in foreground (local & remote)
})
}
})
```

**1. App is killed, Device is locked**
Notification appears in a banner

**2. App is killed, Device is unlocked**
Notification appears in the system tray

**3. App is in background**
Notification appears in the system tray

**4. App is in foreground**
Notification comes in but calling `FCM.presentLocalNotification({})` doesn't show any UI (I expected to see a banner or modal coming from bottom or top)

**Q1. How come notification only appears in system tray _silently_?**

Only in system tray

Banner comes down

**Q2. How do I show a banner while the user is using the app (foreground)?**
I thought calling `FCM.presentLocalNotification({})` will show a UI (either modal or banner) inside an app to notify the user. I saw your answers in F&Q:

> Use show_in_foreground attribute to tell app to show banner even if the app is in foreground. Warning: foreground banner won't show in android for remote notification due to limitation of FCM SDK. However you can create a local notification yourself. A pull is welcome to fix this.

When you say _you can create a local notification yourself._ what do you mean?