AG Mouse app will let you use your phone as the air mouse for Samsung DeX mode with TV or monitor (not for Samsung DeX app for PC) and other Android Desktop mode.

*** IMPORTANT NOTICE: The "force desktop mode" option have been removed since Android 16. Therefore the mouse pointer can not go to external display in default Android desktop mode while SAMSUNG DeX mode is still fine to work with this app.

Features:
+ Mouse cursor movement follows the movement of your phone
+ Three basic mouse buttons: Left, Middle, Right
+ Scrolling up/down by swiping up/down on "MIDDLE" button
+ Left/right swiping by swiping left/right on the bottom area
+"Back button" function by swiping up/down on "RIGHT" button
+ Pinch-to-zoom on bottom half of app area to switch between "full screen" app to "mini floating" app window and vice versa
+ "Hold & Click" is a workaround solution for "drag and drop" or "long click" issue on Android 14 (Drag: touch and hold with one finger at the bottom area of this app then pressing on "Left" button. Drop: moving all fingers out of the phone screen and press "Left" button again)
+ Built-in keyboard (swiping up/down on "LEFT" button to show/hide keyboard)
+ "Black screen" button is to save power consumption (Tap on the button on top-right of the app user interface to make screen black. Swiping on the screen to get display back)
+ Automatically showing or hiding "AG Displays" app logo on an external display when opening or closing "AG Mouse" app respectively
+ Automatically closing app if there is no external display connected.

* Please see the phone screenshots/video.

This app does not require root access.

This app uses AccessibilityService API to read gyroscope sensor data to navigate the mouse cursor on the screen as the app feature. By pressing "Allow" button in the "Ask for permission" dialog when opening this app, user allows this app to use AccessibilityService API. Otherwise, pressing "Exit" button to deny and stop using it.

This app requires the API from Shizuku app. So user need to install Shizuku app on Google Play store as specified in below link.
Shizuku app: https://play.google.com/store/apps/details?id=moe.shizuku.privileged.api

The recommendation is to use this app for Samsung phones with the supporting DeX mode on Android 11 to 16 because it was tested very carefully on these devices and Android versions. However, the app can still work for other devices like Google Pixel... and other lower Android versions but not all of devices and Android versions were tested. (Please be noted that before buying it and please don't give bad comments/ratings due to using it on unrecommended devices and Android versions. Please email me if you need any technical support for using this app. My email address is in "App support" section.Thanks).

For other Desktop mode rather than Samsung DeX, this app need supports of "AG Displays" app for providing an apps launcher for Desktop on external screen. Please download "AG Displays" app on Google Play store as specified in below link.
"AG Displays" app: https://play.google.com/store/apps/details?id=com.htl.agdisplays

All other information about setup, usage, new features... can be known by watching videos in the below playlist
Video playlist: https://youtube.com/playlist?list=PL2l3YNL7akJ1c0T3yFO3EcwP_iRt7_X1_&si=kzPG58k7cgc6eafm

Subscribe my Youtube channel (https://www.youtube.com/@huynhtanloc2612) to know new added features for this app and other interesting things...

AG Mouse - Air mouse for DeX