This API is available on Firefox OS for internal applications 仅。
Provides access to the device's settings.
SettingsManager.onsettingchange
References a Handler to manage change states of settings.
SettingsManager.createLock()
SettingsLock
object to safely access settings asynchronously.
SettingsManager.addObserver()
Allows to bind a function to any change on a given settings
SettingsManager.removeObserver()
addObserver
.
Not part of any specification yet; however, this API will be discuss at W3C as part of the System Applications Working Group .