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Added in API level 12

public static interface View.OnAttachStateChangeListener

android.view.View.OnAttachStateChangeListener

当该视图附加到窗口或从窗口分离时，将调用回调的接口定义。

Public methods
`abstract void`	`onViewAttachedToWindow(View v)` 当视图连接到窗口时调用。
`abstract void`	`onViewDetachedFromWindow(View v)` 当视图从窗口分离时调用。

Added in API level 12

void onViewAttachedToWindow (View v)

当视图连接到窗口时调用。

Parameters
`v`	`View`: The view that was attached

Added in API level 12

void onViewDetachedFromWindow (View v)

当视图从窗口分离时调用。

Parameters
`v`	`View`: The view that was detached