Andoir 判断软键盘是否弹出

前言
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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");
		}
    }