I'm assuming you're a beginner because I made this video for kind of a beginner -_-
Android Authority tutorial: https://www.androidauthority.com/lets-build-custom-keyboard-android-832362/
Stackoverflow answer: https://stackoverflow.com/a/44939816
Code available at https://github.com/avitaker/iOSKeyboardClone.git
Chapters
00:00 - startup and setup
02:20 - Intro to project structure in Android
04:14 - Gradle, Resources, Java and Manifest
07:00 - Create a layout file
08:08 - Intro to resources by build variant and qualifier
11:35 - Create the dam file already
12:15 - Intro to layout editor
12:55 - KeyboardView layout
14:13 - Key preview layout
18:30 - Key layout
24:39 - Input Method service creation
32:30 - OnKeyboardActionListener implementation
37:00 - Run it!
37:03 - Troubleshooting
40:38 - Modify AndroidManifest.xml
44:10 - RUN IT! And it crashed
44:40 - Squashing a bug
45:20 - Please run it? Please?
