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Added in API level 14

public static interface AccessibilityManager.AccessibilityStateChangeListener

android.view.accessibility.AccessibilityManager.AccessibilityStateChangeListener

系统可访问性状态的监听器。要监听设备上可访问状态的更改，请实现此界面并通过调用addAccessibilityStateChangeListener(AccessibilityManager.AccessibilityStateChangeListener)将其注册到系统中。

Public methods
`abstract void`	`onAccessibilityStateChanged(boolean enabled)` 当启用辅助功能状态更改时调用。

Added in API level 14

void onAccessibilityStateChanged (boolean enabled)

当启用辅助功能状态更改时调用。

Parameters
`enabled`	`boolean`: Whether accessibility is enabled.