Judge whether the other person's soul has been unloaded.

The methods to judge whether the other platform is uninstalled include checking whether the other platform is logged in or sending messages to the other platform.

1. See if the other party logs in: If a Soul user doesn't log in to soulapp for more than seven days, his personal homepage will be covered with dust, and friends can wipe it once every seven days, and after wiping the other party's mobile phone, they will receive SMS prompts.

2. Send a message to the other party: you can't send and receive messages after uninstalling, because you can't send a notification window after uninstalling yourself.