Button Mapper: Remap your keys

Button Mapper revolutionizes how you interact with your device by allowing you to remap hardware buttons to launch any app, shortcut, or perform a custom action. With a simple single press, double press, or long press, you can customize your volume buttons and other hardware buttons to suit your needs.

Button Mapper supports remapping for most physical or capacitive keys and buttons, including volume buttons, some assist buttons, and capacitive home, back, and recent apps keys. It also extends its functionality to many gamepads, remotes, and other peripheral devices, making it a versatile tool for all your hardware customization needs.

While root access is not required for most actions, some advanced features may necessitate an adb command from a connected PC if your device is not rooted. Note that Button Mapper does not function when the screen is off unless your device is rooted or you execute an adb command.

Here are some examples of what you can achieve with Button Mapper:

• Long press to toggle your flashlight
• Remap your TV remote control
• Press to broadcast custom intents, scripts, or commands
• Long press to open the camera and take a photo
• Double tap to launch your favorite app or shortcut
• Double tap to open your notifications
• Swap your back and recent apps keys (capacitive buttons only!)
• Use your volume buttons to adjust screen brightness
• Long press to toggle "do not disturb" mode
• And much more

The pro version of Button Mapper unlocks additional features such as:

• Simulating keycodes (requires adb command or root)
• Swapping volume keys on orientation change
• Defaulting to ring volume on Android Pie or later
• Pocket detection
• Themes
• Changing back and recents buttons
• Customizing haptic feedback (vibration) on button press and long press

You can map a wide range of actions to your buttons or keys, including:

• Launching any app or shortcut
• Disabling the button
• Broadcasting intents (PRO)
• Running scripts (PRO)
• Camera shutter
• Turning the screen off
• Toggling the flashlight
• Quick settings
• Showing notifications
• Power dialog
• Taking screenshots
• Music controls: previous/next track and play/pause
• Adjusting volume or muting
• Last app switch
• Toggling do not disturb
• Adjusting brightness
• Now on tap (root)
• Menu button (root)
• Choosing custom keycode (root and PRO)
• Root command (root and PRO)
• Toggling WiFi
• Toggling Bluetooth
• Toggling rotation
• Clearing notifications
• Split screen
• Scrolling up/down (root)
• And many more...

Button Mapper supports a variety of buttons, including:

• Physical home, back, and recent apps/menu buttons
• Volume up
• Volume down
• Most camera buttons
• Many headset buttons
• Custom buttons on your phone, headphones, gamepads, TV remote, and other peripheral devices

Additional customization options include:

• Changing the long press or double tap duration
• Delaying initial button press for better double tap operation
• Disabling Button Mapper while using specific apps
• Plus many more customizations

For troubleshooting, ensure that the Button Mapper accessibility service is enabled and allowed to run in the background. Note that Button Mapper does not work with onscreen buttons (such as soft keys or the navigation bar) or the power button. The options available in the app depend on the buttons present on your phone, so not all phones will have home, back, and recents buttons.

Button Mapper uses Accessibility services to detect when physical or capacitive buttons are pressed on your device, allowing them to be remapped to custom actions. It does not monitor what you type, and it does not collect or share any of your personal information, ensuring your privacy is respected.

The app also uses the Device Administrator permission (BIND_DEVICE_ADMIN) to lock the screen if the "Turn screen off" action is selected. To remove this permission, open Button Mapper, click on the menu (three dots in the upper right corner), and select "Uninstall."