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正文

	private boolean mHasInit = false;

	private boolean mHasKeyboard = false;

	private int mHeight;

    @Override

    protected void onLayout(boolean changed, int l, int t, int r, int b) {

    	// TODO Auto-generated method stub

    	super.onLayout(changed, l, t, r, b);

    	if(!mHasInit) {

			mHasInit = true;

			mHeight = b;

			System.out.println("mHeight= "+b);

		} else {

			mHeight = mHeight < b ? b : mHeight;

		}

		if(mHasInit && mHeight > b) {                  //mHeight代表键盘的真实高度 ,b代表在窗口中的高度 mHeight>b

			mHasKeyboard = true;

            Xlog.e(TAG, "bottomBar---------------->出来了");

		}

		if(mHasInit && mHasKeyboard && mHeight == b) {  // mHeight = b

			mHasKeyboard = false;

			cancelBottomBarAnimation();

            this.setVisibility(View.VISIBLE);

            mShowing = false;

            Xlog.e(TAG, "bottomBar---------------->隐藏了");

		}

    }