将片段附加到活动 [英] Attach a Fragment to the Activity

问题描述

我正在尝试通过使用以下代码将Fragment附加到我的MainActivity:

I am trying to attach a Fragment to my MainActivity programmatically by using the following code:

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    FragmentManager fragmentManager = getFragmentManager();
    FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
    MainFragment fragment = new MainFragment();
    fragmentTransaction.add(R.id.activity_main,fragment);
    fragmentTransaction.commit();


}

它给我一个错误:cannot resolve add method

可以在此处

推荐答案

替换您的代码:

FragmentManager fragmentManager = getFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
MainFragment fragment = new MainFragment();
fragmentTransaction.add(R.id.activity_main,fragment);
fragmentTransaction.commit();

通过这个:

Fragment fragment = new MainFragment();
getSupportFragmentManager.begintransaction.replace(R.id.container,fragment).commit;

这篇关于将片段附加到活动的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！