https://docs.mitmproxy.org/stable/howto-install-system-trusted-ca-android/

Using mitmproxy, it's possible to analyze HTTP(s) communication made by an application running in android emulator.

mitmproxy setup

To ease mitmproxy running, I'm using the following docker-compose.yml:

External mitmproxy docker volume needs to be created with the following command:
$ docker volume create mitmproxy

Once done, you can start mitmproxy:
$ docker-compose up

The mitmproxy web interface is available at http://localhost:8081

Once started, mitmproxy will generate a certificate which you have to retrieve.

$ mkdir /tmp/mycert
$ pushd /tmp/mycert
$ docker run --rm -u $(id -u) -v $(pwd):/out -v mitmproxy:/in alpine cp /in/mitmproxy-ca-cert.cer /out
$ cp mitmproxy-ca-cert.cer $(openssl x509 -inform PEM -subject_hash_old -in mitmproxy-ca-cert.cer | head -1).0

Android emulator setup

Proxy settings

To use your mitmproxy, you need to configure proxy settings in android emulator

Once you have done this settings, you can't anymore browse HTTPS webpage:

You need to install your generated mitmproxy certificate.

Permanent certificate installation using ADB

Please note that permanent certificate installation could only be done with a NON google play images.

Use the following commands to copy certificate to emulator (replace c8750f0d by the hashed name of mitmproxy-ca-cert.cer

$ adb root
$ adb shell "mount -o rw,remount /"
$ adb push c8750f0d.0 /system/etc/security/cacerts
$ adb shell "chmod 664 /system/etc/security/cacerts/c8750f0d.0"
$ adb reboot