android之fragment

1:添加fragment,布局中要有frameLayout。

   Fragment fragment = new Fragment();
     getSupportFragmentManager().beginTransaction()
    .replace(R.id.content, fragment).commit();

 

2：在布局中直接添加fragment

      在Activity中如何得到布局中的Fragment
     FragmentManager fm = getSupportFragmentManager();
     Fragment fragment = fm.findFragmentById(R.id.fragment1);

 

3:FragmentTabHost (Activity中)

  FragmentTabHost mTabHost = (FragmentTabHost) findViewById(android.R.id.tabhost);
  mTabHost.setup(this, getSupportFragmentManager(), R.id.realtabcontent);

 

  FragmentTabHost (Fragment中)

  FragmentTabHost mTabHost = (FragmentTabHost) layout.findViewById(android.R.id.tabhost);
  mTabHost.setup(getActivity(), getChildFragmentManager(), R.id.realtabcontent);

 

添加fragment要Activity extends FragmentActivity