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Added in API level 17

public static interface DisplayManager.DisplayListener

android.hardware.display.DisplayManager.DisplayListener

监听可用显示设备的更改。

Public methods
`abstract void`	`onDisplayAdded(int displayId)` 每当逻辑显示已被添加到系统时调用。
`abstract void`	`onDisplayChanged(int displayId)` 每当逻辑显示的属性发生变化时调用。
`abstract void`	`onDisplayRemoved(int displayId)` 每当逻辑显示已从系统中删除时调用。

Added in API level 17

void onDisplayAdded (int displayId)

每当逻辑显示已被添加到系统时调用。使用getDisplay(int)可获得有关显示的更多信息。

Parameters
`displayId`	`int`: The id of the logical display that was added.

Added in API level 17

void onDisplayChanged (int displayId)

每当逻辑显示的属性发生变化时调用。

Parameters
`displayId`	`int`: The id of the logical display that changed.

Added in API level 17

void onDisplayRemoved (int displayId)

每当逻辑显示已从系统中删除时调用。

Parameters
`displayId`	`int`: The id of the logical display that was removed.