[练习-1] android studio 从Activity 进入 Fragment
从activity 进入到 fragment,使用系统自带的ListFragment
1,新建empty activity
2,新建Fragment(List)
3,activity_main.xml 修改为framlayout
<?xml version="1.0" encoding="utf-8"?> <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/fragment" android:layout_width="match_parent" android:layout_height="match_parent"> </FrameLayout>
4,在MainActivity.java 修改,新增见红色
public class MainActivity extends AppCompatActivity implements ItemFragment.OnListFragmentInteractionListener{ @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main);
// 新增传递ItemFrament ItemFragment f = ItemFragment.newInstance (1); getSupportFragmentManager().beginTransaction().add(R.id.fragment, f).commit(); }
// 实现接口 @Override public void onListFragmentInteraction(DummyContent.DummyItem item) { }
5,实现效果