我尝试将 ViewPager 用作 ListView 中的一行，但得到一个奇怪的行为 - 只有第一行有效，但是当我滚动列表时它消失了。当我滚动一个空行时，突然正在查看上面的行。似乎 Android 创建了一个寻呼机并将其用于所有行。
这是我在启动应用程序时看到的：
这是我的行布局：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@android:color/white"
android:orientation="vertical"
android:paddingBottom="2dp" >
<TextView
android:id="@+id/textViewFriendName"
style="@style/TextStyle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/myFriendsBg"
android:paddingBottom="5dp"
android:paddingTop="5dp"
android:text="TextView" />
<View style="@style/DividerHorizontalStyle_gray" />
<android.support.v4.view.ViewPager
android:id="@+id/pagerMyFriendHabits"
android:layout_width="match_parent"
android:layout_height="@dimen/DefaultImageHeight" />
<View style="@style/DividerHorizontalStyle" />
</LinearLayout>
这是我的列表适配器：
public class MyFriendsAdapter extends BaseAdapter implements OnClickListener {
private ArrayList<UiD_UserFriend> mItems;
private Context mContext;
private FragmentManager mFragmentManager;
public MyFriendsAdapter(Context context, ArrayList<UiD_UserFriend> items, FragmentManager fragmentManager) {
mContext = context;
mItems = items;
mFragmentManager = fragmentManager;
}
@Override
public int getCount() {
return mItems.size();
}
@Override
public Object getItem(int position) {
return mItems.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View currentView, ViewGroup viewGroup) {
Holder holder = null;
if (currentView == null) {
currentView = View.inflate(mContext, R.layout.view_list_item_myfriends, null);
holder = new Holder();
holder.textViewUserName = (TextView) currentView.findViewById(R.id.textViewFriendName);
holder.mMyFriendspager = (ViewPager) currentView.findViewById(R.id.pagerMyFriendHabits);
currentView.setTag(holder);
} else {
holder = (Holder) currentView.getTag();
}
holder.textViewUserName.setText(mItems.get(position).getmName());
MyFriendPagerAdapter tempMyFriendPagerAdapter = new MyFriendPagerAdapter(mFragmentManager, mItems.get(position).getFriendHabits());
holder.mMyFriendspager.setAdapter(tempMyFriendPagerAdapter);
return currentView;
}
class Holder {
TextView textViewUserName;
ViewPager mMyFriendspager;
}
}
这是我的寻呼机适配器：
public class MyFriendPagerAdapter extends FragmentPagerAdapter {
private ArrayList<UiD_Habit> mHabits;
public MyFriendPagerAdapter(FragmentManager fm, ArrayList<UiD_Habit> habits) {
super(fm);
mHabits = habits;
}
@Override
public Fragment getItem(int index) {
return new FragmentMyFriendPage(mHabits.get(index));
}
@Override
public int getCount() {
return mHabits.size();
}
}