Demo mode for the status bar allows you to force the status bar into a fixed state, useful for taking screenshots with a consistent status bar state, or testing different status icon permutations. Demo mode is available in recent versions of Android.
Demo mode is protected behind a system setting. To enable it for a device, run:
adb shell settings put global sysui_demo_allowed 1
The protocol is based on broadcast intents, and thus can be driven via the command line (adb shell am broadcast) or an app (Context.sendBroadcast).
com.android.systemui.demo
Commands and subcommands (below) are sent as string extras in the broadcast intent.
Commands are sent as string extras with key command (required). Possible values are:
| Command | Subcommand | Argument | Description |
|---|---|---|---|
enter | Enters demo mode, bar state allowed to be modified (for convenience, any of the other non-exit commands will automatically flip demo mode on, no need to call this explicitly in practice) | ||
exit | Exits demo mode, bars back to their system-driven state | ||
battery | Control the battery display | ||
level | Sets the battery level (0 - 100) | ||
plugged | Sets charging state (true, false) | ||
network | Control the RSSI display | ||
airplane | show to show icon, any other value to hide | ||
fully | Sets MCS state to fully connected (true, false) | ||
wifi | show to show icon, any other value to hide | ||
level | Sets wifi level (null or 0-4) | ||
mobile | show to show icon, any other value to hide | ||
datatype | Values: 1x, 3g, 4g, e, g, h, lte, roam, any other value to hide | ||
level | Sets mobile signal strength level (null or 0-4) | ||
carriernetworkchange | Sets mobile signal icon to carrier network change UX when disconnected (show to show icon, any other value to hide) | ||
sims | Sets the number of sims (1-8) | ||
nosim | show to show icon, any other value to hide | ||
bars | Control the visual style of the bars (opaque, translucent, etc) | ||
mode | Sets the bars visual style (opaque, translucent, semi-transparent) | ||
status | Control the system status icons | ||
volume | Sets the icon in the volume slot (silent, vibrate, any other value to hide) | ||
bluetooth | Sets the icon in the bluetooth slot (connected, disconnected, any other value to hide) | ||
location | Sets the icon in the location slot (show, any other value to hide) | ||
alarm | Sets the icon in the alarm_clock slot (show, any other value to hide) | ||
sync | Sets the icon in the sync_active slot (show, any other value to hide) | ||
tty | Sets the icon in the tty slot (show, any other value to hide) | ||
eri | Sets the icon in the cdma_eri slot (show, any other value to hide) | ||
mute | Sets the icon in the mute slot (show, any other value to hide) | ||
speakerphone | Sets the icon in the speakerphone slot (show, any other value to hide) | ||
notifications | Control the notification icons | ||
visible | false to hide the notification icons, any other value to show | ||
clock | Control the clock display | ||
millis | Sets the time in millis | ||
hhmm | Sets the time in hh:mm |
Enter demo mode
adb shell am broadcast -a com.android.systemui.demo -e command enter
Exit demo mode
adb shell am broadcast -a com.android.systemui.demo -e command exit
Set the clock to 12:31
adb shell am broadcast -a com.android.systemui.demo -e command clock -e hhmm 1231
Set the wifi level to max
adb shell am broadcast -a com.android.systemui.demo -e command network -e wifi show -e level 4
Show the silent volume icon
adb shell am broadcast -a com.android.systemui.demo -e command status -e volume silent
Empty battery, and not charging (red exclamation point)
adb shell am broadcast -a com.android.systemui.demo -e command battery -e level 0 -e plugged false
Hide the notification icons
adb shell am broadcast -a com.android.systemui.demo -e command notifications -e visible false
Exit demo mode
adb shell am broadcast -a com.android.systemui.demo -e command exit
frameworks/base/tests/SystemUIDemoModeController
#!/bin/sh CMD=$1 if [[ $ADB == "" ]]; then ADB=adb fi if [[ $CMD != "on" && $CMD != "off" ]]; then echo "Usage: $0 [on|off] [hhmm]" >&2 exit fi if [[ "$2" != "" ]]; then HHMM="$2" fi $ADB root || exit $ADB wait-for-devices $ADB shell settings put global sysui_demo_allowed 1 if [ $CMD == "on" ]; then $ADB shell am broadcast -a com.android.systemui.demo -e command enter || exit if [[ "$HHMM" != "" ]]; then $ADB shell am broadcast -a com.android.systemui.demo -e command clock -e hhmm ${HHMM} fi $ADB shell am broadcast -a com.android.systemui.demo -e command battery -e plugged false $ADB shell am broadcast -a com.android.systemui.demo -e command battery -e level 100 $ADB shell am broadcast -a com.android.systemui.demo -e command network -e wifi show -e level 4 $ADB shell am broadcast -a com.android.systemui.demo -e command network -e mobile show -e datatype none -e level 4 $ADB shell am broadcast -a com.android.systemui.demo -e command notifications -e visible false elif [ $CMD == "off" ]; then $ADB shell am broadcast -a com.android.systemui.demo -e command exit fi