Android監控軟鍵盤變化執行個體

public class ResizeLayout extends FrameLayout {    private OnkeyboardShowListener mChangedListener;    private boolean misKeyboardshow = false;    private RRSharedPreferences preferences;    private int keyboardHeight = DipUtil.calcFromDip(Config.DEFAULT_KEYBOARD_HIGHT);    private final int THRESHOLD = 100;    /**     * @param context     * @param attrs     */    public ResizeLayout(Context context, AttributeSet attrs) {        super(context, attrs);        preferences = new RRSharedPreferences(context);    }        public static interface OnkeyboardShowListener {        public void onKeyboardShow();        public void onKeyboardHide();        public void onKeyboardShowOver();    }    @Override    protected void onSizeChanged(int w, int h, int oldw, int oldh) {        super.onSizeChanged(w, h, oldw, oldh);        if (oldh - h > THRESHOLD) { //鍵盤彈出了            misKeyboardshow = true;            keyboardHeight = oldh - h;            preferences.putIntValue(Config.KEYBOARD_HIGHT, keyboardHeight);            if (mChangedListener != null) {                mChangedListener.onKeyboardShow();            }        } else if (h < oldh && misKeyboardshow) { //鍵盤變高了            if (keyboardHeight == DipUtil.calcFromDip(Config.DEFAULT_KEYBOARD_HIGHT)) {                preferences.getIntValue(Config.KEYBOARD_HIGHT, DipUtil.calcFromDip(Config.DEFAULT_KEYBOARD_HIGHT));            }            if (keyboardHeight != DipUtil.calcFromDip(Config.DEFAULT_KEYBOARD_HIGHT)) {                keyboardHeight += oldh - h;                preferences.putIntValue(Config.KEYBOARD_HIGHT, keyboardHeight);            }            if (mChangedListener != null) {                mChangedListener.onKeyboardShow();            }        } else if (h - oldh > THRESHOLD) { //鍵盤隱藏了            misKeyboardshow = false;            if (mChangedListener != null) {                mChangedListener.onKeyboardHide();            }        } else if (h > oldh && misKeyboardshow) { //鍵盤收縮了            if (keyboardHeight == DipUtil.calcFromDip(Config.DEFAULT_KEYBOARD_HIGHT)) {                preferences.getIntValue(Config.KEYBOARD_HIGHT, DipUtil.calcFromDip(Config.DEFAULT_KEYBOARD_HIGHT));            }            if (keyboardHeight != DipUtil.calcFromDip(Config.DEFAULT_KEYBOARD_HIGHT)) {                keyboardHeight -= h - oldh;                preferences.putIntValue(Config.KEYBOARD_HIGHT, keyboardHeight);            }            if (mChangedListener != null) {                mChangedListener.onKeyboardShow();            }        }        CommonUtil.log("NCS", "keyboard height:"+ keyboardHeight);    }    @Override    protected void onLayout(boolean changed, int left, int top, int right,            int bottom) {        super.onLayout(changed, left, top, right, bottom);        CommonUtil.log("NCS", "top:" + top + "--bottom:" + bottom);        if (mChangedListener != null && misKeyboardshow) {            mChangedListener.onKeyboardShowOver();        }    }        public boolean isKeyboardShowing() {        return misKeyboardshow;    }    public void setOnKeyboardShowListener(OnkeyboardShowListener listener) {        mChangedListener = listener;    }}