获取全面屏手机高度

public class FullScreenManager {

    /**
     * 获取状态栏高度
     * @param activity
     * @return
     */
    public static int getStatusBarHeight(Activity activity) {
        Resources resources = activity.getResources();
        int resourceId = resources.getIdentifier("status_bar_height", "dimen", "android");
        int height = resources.getDimensionPixelSize(resourceId);
        return height;
    }

    /**
     * 获取底部虚拟导航栏高度
     * @param activity
     * @return
     */
    public static int getNavigationBarHeight(Activity activity) {
        Resources resources = activity.getResources();
        int resourceId = resources.getIdentifier("navigation_bar_height", "dimen", "android");
        int height = resources.getDimensionPixelSize(resourceId);
        return height;
    }

    /**
     * 非全面屏下 虚拟按键是否打开
     * @param activity
     * @return
     */
    public static boolean isNavigationBarShown(Activity activity){
        //虚拟键的view,为空或者不可见时是隐藏状态
        View view  = activity.findViewById(android.R.id.navigationBarBackground);
        if(view == null){
            return false;
        }
        int visible = view.getVisibility();
        if(visible == View.GONE || visible == View.INVISIBLE){
            return false ;
        }else{
            return true;
        }
    }
}