最简单的实现沉浸式状态栏,10行代码不到

setContentView(R.layout.activity_main);
        // 实现沉浸式状态栏
        //if (Build.VERSION.SDK_INT >= 21) {
//            View decorView = getWindow().getDecorView();
//            int option = View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN | View.SYSTEM_UI_FLAG_LAYOUT_STABLE;
//            decorView.setSystemUiVisibility(option);
//            getWindow().setStatusBarColor(Color.TRANSPARENT);
            // 半透明
           View decorView = getWindow().getDecorView();
           int option = View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN | View.SYSTEM_UI_FLAG_LAYOUT_STABLE;
           decorView.setSystemUiVisibility(option);
            getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
        }
// 下面看实际 是否需要
//ActionBar actionBar = getSupportActionBar();
//actionBar.hide();