[enhancement] How to avoid problems with new threads being launched in Android

[kim-jinmo]

First of all, please understand that I used a translator because my English is not good.

When the app is already open, it opens a new thread.
The solution to this problem is to simply add the following code to user's AndroidManifest.xml:

<activity
            android:name="com.hiennv.flutter_callkit_incoming.TransparentActivity"
            android:launchMode="singleInstance"
            tools:replace="android:launchMode"/>

This way, you don't need to change the launchMode of MainActivity below to singleInstance.

I request developers to also add singleInstance to flutter_callkit_incoming project.

If you have any problems, please share them with us.