Xcode 11.4 introduced sending simulated push notification on iOS simulator

How to achieve that?

Answering my own question :P

Requirement: Xcode 11.4 beta or above

Method 1, Online tool

Use online tool to test push notifications, I personally found it more useful than methods below, it's more straightforward and does not require remembering simctl command

Website: http://pushplayground.com/

Method 2, Command line

There are 2 ways, both needed a JSON formatted with a valid Apple Push Notification Service payload with .apns extension

Example apns: (Save it as XXX.apns file)

{
    "aps":{
        "alert":"Test",
        "sound":"default",
        "badge":1
    }
}

Using simctl to send simulated notification

$ xcrun simctl push <SIMULATOR_DEVICE_ID> <YOUR_APP_BUNDLE_ID> <APNS_FILE_NAME>

Usage:

$ xcrun simctl push A0AF405F-FE73-45DA-8D7D-F1FE37821992 com.example.my-app test.apns

You can find the simulator device id with

xcrun simctl list

Example:

Method 3, Drag and Drop .apns file to simulator

When using drag and drop, you .apns file needed to include a key that indicates your app bundle id

Key name: Simulator Target Bundle

Value: Your app bundle id Example:

{
    "Simulator Target Bundle": "YOUR_APP_BUNDLE_ID",
    "aps":{
        "alert":"Test",
        "sound":"default",
        "badge":1
    }
}

After that, simply drag and drop the file into the simulator, and voilà!