// 设置沉浸式布局标志位if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {frameLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN| View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION);} else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {frameLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN| View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION);}// 设置状态栏背景颜色if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {Window window = getWindow();window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);window.setStatusBarColor(Color.TRANSPARENT); // 将状态栏设置为透明window.setNavigationBarColor(Color.BLACK);   // 设置导航栏颜色}