Force Android Studio to show light bulb

Are you talking about using Alt + Enter?

This link might help: https://www.jetbrains.com/idea/help/keyboard-shortcuts-you-cannot-miss.html

Pressing Alt + Enter results in the drop-down menu with correction options in this case:

1. In the Android studio Settings/Keymap "shortcut Ctrl+Alt+S"

search for usage of "Alt + Ent" as below image if its not assigned for any action plz go for No. 2

Android studio shortcuts

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2. In the Android studio Settings/Editor/Intentions.

Check whatever you want to show Intention in are checked or not as below photo

Intention

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3. Double check no.1 is working fine and you found usage of "Alt + Ent" shortcut

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[You can find the solution on official Jet brains website]

Intellij IDEA keyboard shortcuts

Intention actions