android判断是否显示虚拟按键及其高度问题

最近要做一个全局输入框，只能通过onGlobalLayout调整适应布局顶起键盘给予正确的高度，遇到国产虚拟按键可算是天坑。

问题在于很多只搜到了是否存在虚拟按键，但是随着全面屏手势等出现，这个虚拟按键是可以动态显示隐藏的，当隐藏的时候这个判断方法依然为true，如果大家知道除了小米之外的官方判断 欢迎补充

下面我的处理方法。

 

//diff为负数的时候说明减去虚拟按键的高度 变为了负数侧面证明虚拟按键已经隐藏

public static boolean isAbNoHasNavigationBar = false;

public static void addGlobalLayoutListener(final Activity activity) {
        final View decorView = activity.getWindow().getDecorView();
        final View contentView = activity.findViewById(Window.ID_ANDROID_CONTENT);
        final int navigationBarHeight = RomUtils.getNavigationBarHeight(activity);


        //小米是否显示了虚拟按键
        final boolean isXiaoMIhas = !xiaomiNavigationGestureEnabled(activity);

     

        ViewTreeObserver.OnGlobalLayoutListener listener = new ViewTreeObserver.OnGlobalLayoutListener() {
            @Override
            public void onGlobalLayout() {
                Rect r = new Rect();
                decorView.getWindowVisibleDisplayFrame(r);

                int height = getTrueHeight(decorView.getContext());
                int diff = height - r.bottom;
       

                
                //最坑的地方在于很多方法只能判断是否有虚拟按键这个功能，但是无法判断是否启用
                if (RomUtils.checkIsMiuiRom()) {
                    if (isXiaoMIhas) {
                         //显示虚拟按键
                        diff = diff - navigationBarHeight;
                        
                    }
                        
                } else {
                    if (isAbNoHasNavigationBar){
                        //此时在有虚拟键的情况下关闭了虚拟键
                    }else {
                        if(RomUtils.hasSoftKeys(activity.getWindow().getWindowManager()){
                            diff = diff - navigationBarHeight;
                        }
                    }
                }


                Log.i("rex", "diff:" + diff);
                if (diff < 0) {
                    isAbNoHasNavigationBar = true;
                }

                if (diff > 0) {
                    if (contentView.getPaddingBottom() != diff) {
                        contentView.setPadding(0, 0, 0, diff);
                    }
                } else {
                    if (contentView.getPaddingBottom() != 0) {
                        contentView.setPadding(0, 0, 0, 0);
                    }
                }
            }
        };

        decorView.getViewTreeObserver().addOnGlobalLayoutListener(listener);
    }

  private static final String XIAOMI_FULLSCREEN_GESTURE = "force_fsg_nav_bar";

    public static boolean xiaomiNavigationGestureEnabled(Context context) {
        int val = Settings.Global.getInt(context.getContentResolver(), XIAOMI_FULLSCREEN_GESTURE, 0);
        return val != 0;
    }