Set the keyboard height observer to this provider. The observer will be notified when the keyboard height has changed. For example when the keyboard i

Close the keyboard height provider, this provider will not be used anymore.

计算mChildOfContent可见高度 @return

Get the screen orientation @return the screen orientation

Popup window itself is as big as the window of the Activity. The keyboard can then be calculated by extracting the popup view bottom from the activity

Called when the keyboard height has changed, 0 means keyboard is closed, >= 1 means keyboard is opened. @param height The height of the keyboa

Start the KeyboardHeightProvider, this must be called after the onResume of the Activity. PopupWindows are not allowed to be registered before the onR

Construct a new KeyboardHeightProvider @param activity The parent activity

{@inheritDoc}

{@inheritDoc}