private void initWindows() {
        Window window = getWindow();
        int color = getResources().getColor(android.R.color.holo_blue_light);
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            window.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS
                    | WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
            window.getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
                    | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
                    | View.SYSTEM_UI_FLAG_LAYOUT_STABLE);
            window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
            //設置狀態欄顏色
            window.setStatusBarColor(color);
            //設置導航欄顏色
            window.setNavigationBarColor(color);
            ViewGroup contentView = ((ViewGroup) findViewById(android.R.id.content));
            View childAt = contentView.getChildAt(0);
            if (childAt != null) {
                childAt.setFitsSystemWindows(true);
            }
        } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
            //透明狀態欄
            window.addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
            //透明導航欄
            window.addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
            //設置contentview為fitsSystemWindows
            ViewGroup contentView = (ViewGroup) findViewById(android.R.id.content);
            View childAt = contentView.getChildAt(0);
            if (childAt != null) {
                childAt.setFitsSystemWindows(true);
            }
            //給statusbar著色
            View view = new View(this);
            view.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, getStatusBarHeight(this)));
            view.setBackgroundColor(color);
            contentView.addView(view);
        }
    }

Android沈浸式狀態欄