if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
    Window window = getWindow();
    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);
    window.setStatusBarColor(Color.TRANSPARENT);
    window.setNavigationBarColor(Color.TRANSPARENT);
}

setTitleBarColor(status_bar, R.color.new_login_colors);

/**
 * @params status_bar 頂替狀態欄的view
 * @params color 狀態欄顏色
 */
public void setTitleBarColor(View status_bar, int color) {
    try {
        // 設置View的高度，因為每個型號的手機狀態欄高度都不相同
        status_bar.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT, ScreenUtils.getStatusHeight(this)));
        // 判斷SDK版本是否大於等於19，大於就讓他顯示，小於就要隱藏，不然低版本會多出來一個
        if (Build.VERSION.SDK_INT == Build.VERSION_CODES.KITKAT) {
            setTranslucentStatus(true);
            status_bar.setVisibility(View.VISIBLE);
        } else {
            status_bar.setVisibility(View.GONE);
        }
        // 為狀態欄著色
        SystemBarTintManager tintManager = new SystemBarTintManager(this);
        tintManager.setStatusBarTintEnabled(true);
        tintManager.setStatusBarTintResource(color);
    } catch (Exception e) {
        e.printStackTrace();
    }
}

@TargetApi(19)
private void setTranslucentStatus(boolean on) {
    try {
        Window win = getWindow();
        WindowManager.LayoutParams winParams = win.getAttributes();
        final int bits = WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS;
        if (on) {
            winParams.flags |= bits;
        } else {
            winParams.flags &= ~bits;
        }
        win.setAttributes(winParams);
    } catch (Exception e) {
        e.printStackTrace();
    }
}

安卓設置沈浸式狀態欄