我不熟悉使用ViewPagers
和Fragments
在一起。我的应用程序ListView
启动时会根据传递的 id 将用户带到详细信息视图。我遇到的问题是详细信息视图的布局与列表视图不同。ViewPager
是在初始屏幕的布局上,所以在使用布局时ViewPager
会保留初始布局,它基本上只是底部的一个状态栏,当用户在细节视图时应该会消失。
这是我到目前为止所拥有的:
Main.xml(启动时的初始布局,带有状态栏)
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_height="fill_parent"
android:layout_width="fill_parent"
>
<!-- Footer -->
<TextView
android:id="@+id/status"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
/>
<!-- Footer -->
<android.support.v4.view.ViewPager
android:id="@+id/viewpager"
android:layout_height="match_parent"
android:layout_width="match_parent"
android:layout_above="@id/status
/>
</RelativeLayout>
主类
public class Main extends SherlockFragmentActivity
{
private static int NUMBER_OF_PAGES;
private ViewPager mViewPager;
private MyFragmentPagerAdapter mMyFragmentPagerAdapter;
private static List<Fragment> fragments;
@Override
public void onCreate(final Bundle icicle)
{
super.onCreate(icicle);
setContentView(R.layout.main);
mViewPager = (ViewPager)findViewById(R.id.viewpager);
mMyFragmentPagerAdapter = new MyFragmentPagerAdapter(getSupportFragmentManager());
mViewPager.setAdapter(mMyFragmentPagerAdapter);
NUMBER_OF_PAGES = 5;
fragments = new ArrayList<Fragment>();
fragments.add(new ListingFragment()); //initial screen that just a ListView
fragments.add(DetailsFragment.newInstance(1));
fragments.add(DetailsFragment.newInstance(2));
fragments.add(DetailsFragment.newInstance(3));
fragments.add(DetailsFragment.newInstance(4));
}
private static class MyFragmentPagerAdapter extends FragmentStatePagerAdapter {
public MyFragmentPagerAdapter(FragmentManager fm) {
super(fm);
}
@Override
public Fragment getItem(int index) {
return fragments.get(index);
}
@Override
public int getCount() {
return NUMBER_OF_PAGES;
}
}
}
Details.xml(没有状态栏的详细信息视图)
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:ads="http://schemas.android.com/apk/lib/com.google.ads"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<ListView android:id="@android:id/list"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
/>
</RelativeLayout>
DetailsFragment.class
public class DetailsFragment extends SherlockFragmentActivity
{
private int detailId;
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
}
@Override
public void onActivityCreated(final Bundle icicle)
{
super.onActivityCreated(icicle);
}
public static DetailsFragment newInstance(int id) {
DetailsFragment lf = new DetailsFragment();
Bundle bundle = new Bundle();
bundle.putInt("id", id);
lf.setArguments(bundle);
return lf;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.details, container, false);
detailId = getArguments().getInt("id");
return view;
}
}