Android Incallui [2021] -

InCallUI must handle a hardware nightmare: the proximity sensor. A bug here causes "black screen of death" (can’t hang up) or "pocket dialing" (screen on during call).

A bug in One UI’s InCallUI might not exist in AOSP, making troubleshooting device-specific. android incallui

Incorporates features like automatic call recording directly into the UI within MIUI or HyperOS . InCallUI must handle a hardware nightmare: the proximity

Top Phones with Stock Android in 2026: Clean, Fast & Bloat-Free While often hidden in the background until a

"Enhanced InCall Experience with Smart Call Handling"

The is the core system component responsible for the visual interface you see while actively engaged in a phone call. It manages everything from the "Accept/Reject" sliders to the in-call keypad and speakerphone toggles. While often hidden in the background until a call occurs, it is one of the most critical parts of the Android telephony stack. What is InCallUI?

Since Android 6.0, any dialer app can implement the InCallService and replace the default call screen. This is how apps like Truecaller or Simple Dialer work.