我已经在我的android应用程序中实现了导航抽屉。但现在我希望当用户单击导航栏中的任何列表项时,能够使用片段更改布局。
到目前为止我得到的是:
XML
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/drawer_layout"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="match_parent">
<FrameLayout
android:id="@+id/content_frame"
android:layout_width="match_parent"
android:background="#000000"
android:layout_height="match_parent" >
</FrameLayout>
<ListView android:id="@+id/left_drawer"
android:layout_width="220dp"
android:layout_height="match_parent"
android:layout_gravity="start"
android:choiceMode="singleChoice"
android:divider="@android:color/transparent"
android:dividerHeight="0dp"
android:background="#111"/>
</android.support.v4.widget.DrawerLayout>
Java文件
public class MainActivity extends Activity {
final String[] data ={"one","two","three"};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, data);
final DrawerLayout drawer = (DrawerLayout)findViewById(R.id.drawer_layout);
final ListView navList = (ListView) findViewById(R.id.left_drawer);
navList.setAdapter(adapter);
navList.setOnItemClickListener(new AdapterView.OnItemClickListener(){
@Override
public void onItemClick(AdapterView<?> parent, View view, final int pos,long id){
drawer.setDrawerListener( new DrawerLayout.SimpleDrawerListener(){
@Override
public void onDrawerClosed(View drawerView){
super.onDrawerClosed(drawerView);
}
});
drawer.closeDrawer(navList);
}
});
}
}
使用上面的代码,我在我的应用程序中实现了导航抽屉,我在导航抽屉中看到了“一”、“二”和“三”个列表项,但是当我单击它们时,除了抽屉关闭之外什么都没有发生。
所以,我的问题是:
如何将片段功能添加到上述给定代码中?
我是初学者。提前谢谢!
最佳答案
一键式
selectItem(pos);
然后
public void selectItem(int position)
{
switch(position)
{
case 0:
// fragment1
// use fragment transaction and add the fragment to the container
FragmentManager fragmentManager = getFragmentManager()
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
Fragment1 fragment = new Fragment1();
fragmentTransaction.add(R.id.content_frame, fragment);
fragmentTransaction.commit();
break;
case 1:
// fragment2
break;
case 2:
// fragment2
break;
}
}