Device State

You can access cetain properties of the device state relating to power modes and locale information through the DeviceState interface

Time

You can check if the device currently has the auto time preference checked with the isAutoTimeEnabled flag:

var isAutoTimeEnabled:Boolean = SystemInfo.instance.deviceState.isAutoTimeEnabled;

Similarly you can check if the device currently has the auto time zone preference checked:

var isAutoTimeZoneEnabled:Boolean = SystemInfo.instance.deviceState.isAutoTimeZoneEnabled;

Device Idlde Mode

The isDeviceIdleMode flag returns true if the device is currently in idle mode.

This happens when a device has been sitting unused and unmoving for a sufficiently long period of time, so that it decides to go into a lower power-use state. This may involve things like turning off network access to apps.

var isDeviceIdleMode:Boolean = SystemInfo.instance.deviceState.isDeviceIdleMode;

You can listen for the DeviceStateEvent.IDLE_MODE_CHANGED to determine when the value of this flag changes:

SystemInfo.instance.deviceState.addEventListener( DeviceStateEvent.IDLE_MODE_CHANGED, idleModeChangedHandler );

Power Save Mode

The isPowerSaveMode flag returns true if the device is currently in power save mode. When in this mode, applications should reduce their functionality in order to conserve battery as much as possible.

var isPowerSaveMode:Boolean = SystemInfo.instance.deviceState.isPowerSaveMode;

You can listen for the DeviceStateEvent.POWER_SAVE_MODE_CHANGED to determine when the value of this flag changes:

SystemInfo.instance.deviceState.addEventListener( DeviceStateEvent.POWER_SAVE_MODE_CHANGED, powerSaveModeChangedHandler );