Android获取软键盘高度

    private var keyboardHeight = 0

    private fun observeKeyboardHeight() {
        val rootView: View = window.decorView.findViewById(android.R.id.content)
        rootView.viewTreeObserver.addOnGlobalLayoutListener(object :
            ViewTreeObserver.OnGlobalLayoutListener {

            private var isKeyboardVisible = false

            override fun onGlobalLayout() {
                val rect = Rect()
                rootView.getWindowVisibleDisplayFrame(rect)
                val screenHeight = rootView.rootView.height
                keyboardHeight = screenHeight - rect.bottom

                if (keyboardHeight > 150 && !isKeyboardVisible) {
                    isKeyboardVisible = true;
                    // 键盘弹出
                    Log.i("show....$keyboardHeight")
                    showedKeyboard(true)
                } else if (keyboardHeight <= 150 && isKeyboardVisible) {
                    isKeyboardVisible = false;
                    // 键盘隐藏
                    Log.i("hide....$keyboardHeight")
                    showedKeyboard(false)
                }
            }
        })
    }

某些设备需要同步配合获取底部导航栏高度：

    private fun getNavigationBarHeight(context: Context): Int {
        try {
            val resourceId =
                context.resources.getIdentifier("navigation_bar_height", "dimen", "android")
            return if (resourceId > 0) {
                context.resources.getDimensionPixelSize(resourceId)
            } else {
                0
            }
        } catch (e: Exception) {
            return 0
        }
    }