来自fragment的android工具栏颜色变为蓝色

<style name="BlueToolbarTheme" parent="Theme.AppCompat.Light.DarkActionBar">
    <item name="colorPrimary">@color/blue</item>
    <item name="colorPrimaryDark">@color/dark_blue</item>
    <item name="colorAccent">@color/blue</item>
</style>

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    // Inflate the layout for this fragment
    View view = inflater.inflate(R.layout.fragment_layout, container, false);

    // 获取Toolbar实例
    Toolbar toolbar = view.findViewById(R.id.toolbar);
  
    // 设置工具栏的主题样式
    toolbar.getContext().setTheme(R.style.BlueToolbarTheme);
  
    // 其他工具栏的操作...
  
    return view;
}

<resources>
    <color name="blue">#2196F3</color>
    <color name="dark_blue">#1976D2</color>
</resources>