It is generally hard to install kivy on Raspberry Pi. To Make Your Life Easier I have Made A Bash Script That Will Install Kivy On Your Raspberry Pi And Run A demo Script

Run The Following Command To Install Kivy On RPI
git clone git clone https://github.com/techcoder20/RPI-Kivy-Installer.git ~/RPI-Kivy-Installer && cd ~/RPI-Kivy-Installer && sudo chmod +x install.sh && ./install.sh

Run The Following Command To Uninstall Kivy
sudo chmod +x ~/RPI-Kivy-Installer/uninstall.sh && ./RPI-Kivy-Installer/uninstall.sh

📫 You can reach out to me at my discord server