【发布时间】：2016-02-11 17:42:46
【问题描述】：
所以我知道这已被多次回答，例如Fragment Inside Fragment。按照帖子中的建议，我正在使用getChildFragmentManager() 的支持库。问题是我的viewpager 的片段尽管被充气却没有出现。我的标签（带有图标）显示得非常好。以下是相关代码：
对话框片段：
public class DialogFragment extends DialogFragment {
private static final String ARG_PAGE = "ARG_PAGE";
private int mPage;
private HotSpot hotSpot;
private Gson gson = new Gson();
private Map nonEmptyPerks;
private TabLayout tabLayout;
private ViewPager viewPager;
public DialogFragment() {
// Empty constructor required for DialogFragment
}
public static PerkDetailDialogFragment newInstance(int page, String hotSpotJson) {
Bundle args = new Bundle();
args.putInt(ARG_PAGE, page);
args.putString("HOTSPOTDETAILED", hotSpotJson);
PerkDetailDialogFragment fragment = new PerkDetailDialogFragment();
fragment.setArguments(args);
return fragment;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mPage = getArguments().getInt(ARG_PAGE);
String json = getArguments().getString("HOTSPOTDETAILED");
hotSpot = gson.fromJson(json, HotSpot.class);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup parent, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_dialog, parent, false);
// Get the ViewPager and set it's PagerAdapter so that it can display items
viewPager = (ViewPager) view.findViewById(R.id.viewpager);
tabLayout = (TabLayout) view.findViewById(R.id.perkSelector);
return view;
}
@Override
public void onViewCreated(View view, Bundle savedInstanceState) {
nonEmptyPerks = getNonEmptyPerks(hotSpot.getPerks());
PerkFragmentPagerAdapter pagerAdapter =
new PerkFragmentPagerAdapter(getChildFragmentManager(), nonEmptyPerks.size());
viewPager.setAdapter(pagerAdapter);
// Give the TabLayout the ViewPager
tabLayout.setupWithViewPager(viewPager);
// ..... More code here
}
@Override
public void onStart() {
super.onStart();
getDialog().getWindow().setLayout(
RelativeLayout.LayoutParams.MATCH_PARENT, RelativeLayout.LayoutParams.MATCH_PARENT);
}
public class PerkFragmentPagerAdapter extends FragmentPagerAdapter {
private int pageCount;
public PerkFragmentPagerAdapter(FragmentManager fm, int pageCount) {
super(fm);
this.pageCount = pageCount;
}
@Override
public int getCount() {
return pageCount;
}
@Override
public Fragment getItem(int position) {
String perk = "temp";
return PerkFragment.newInstance(position + 1, perk);
}
}
}
PerkFragment：
public class PerkFragment extends Fragment {
private static final String ARG_PAGE = "ARG_PAGE";
private static final String ARG_PERK_DESCRIPTION = "PERK_DESCRIPTION";
private int mPage;
private String perkDescription;
public static PerkFragment newInstance(int page, String perk) {
Bundle args = new Bundle();
args.putInt(ARG_PAGE, page);
args.putString(ARG_PERK_DESCRIPTION, perk);
PerkFragment fragment = new PerkFragment();
fragment.setArguments(args);
return fragment;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mPage = getArguments().getInt(ARG_PAGE);
perkDescription = getArguments().getString(ARG_PERK_DESCRIPTION);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_perk, container, false);
TextView perkDescriptionTextView = (TextView) view.findViewById(R.id.perkDescription);
perkDescriptionTextView.setText(perkDescription);
return view;
}
}
fragment_dialog.xml：
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="@+id/hotSpotImg"
android:layout_width="match_parent"
android:layout_height="250dp"
android:scaleType="centerCrop"
android:src="@drawable/img_venue_placeholder" />
<ImageView
android:id="@+id/iconBackArrow"
android:layout_width="50dp"
android:layout_height="60dp"
android:layout_alignStart="@+id/hotSpotImg"
android:layout_alignTop="@+id/hotSpotImg"
android:src="@drawable/img_back_arrow_shadow" />
<ImageView
android:id="@+id/iconGPS"
android:layout_width="50dp"
android:layout_height="60dp"
android:layout_alignBottom="@+id/hotSpotImg"
android:layout_alignStart="@+id/hotSpotImg"
android:src="@drawable/img_gps" />
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="@+id/hotSpotImg">
<TextView
android:id="@+id/memberSpace"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_marginBottom="10dp"
android:layout_marginTop="10dp"
android:text="@string/member_space"
android:textAllCaps="true"
android:textColor="@color/grey_2"
android:textSize="16sp" />
<com.test.test.helpers.LetterSpacingTextView
android:id="@+id/hotSpotName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/memberSpace"
android:layout_centerHorizontal="true"
android:layout_marginBottom="10dp"
android:text="That filler info"
android:textAlignment="center"
android:textAllCaps="true"
android:textColor="@color/black"
android:textSize="22sp" />
<android.support.design.widget.TabLayout
android:id="@+id/perkSelector"
style="@style/MyCustomTabLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@id/hotSpotName"
android:layout_marginBottom="10dp"
app:tabGravity="center" />
<android.support.v4.view.ViewPager
android:id="@+id/viewpager"
android:layout_width="match_parent"
android:layout_height="0dp" />
<ScrollView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="@+id/checkIn"
android:layout_below="@id/perkSelector"
android:layout_centerHorizontal="true">
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingEnd="20dp"
android:paddingStart="20dp">
<TextView
android:id="@+id/hotSpotHours"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_marginTop="20dp"
android:text="@string/hours"
android:textColor="@color/grey"
android:textSize="14sp" />
<TextView
android:id="@+id/hotSpotDescription"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/hotSpotHours"
android:layout_marginTop="20dp"
android:lineSpacingExtra="10dp"
android:text="FILLER DESCRIPTION"
android:textAlignment="center"
android:textColor="@color/grey"
android:textSize="16sp" />
</RelativeLayout>
</ScrollView>
<TextView
android:id="@+id/checkIn"
android:layout_width="200dp"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:layout_marginBottom="10dp"
android:layout_marginTop="10dp"
android:background="@drawable/text_view_button"
android:clickable="true"
android:text="@string/check_in"
android:textAlignment="center"
android:textAllCaps="true" />
</RelativeLayout>
</RelativeLayout>
fragment_perk.xml：
<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/perkDescription"
style="@style/MyCustomTextAppearance"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="PERK FILLER"
android:textColor="@color/magnises_grey"
android:textSize="18sp" />
【问题讨论】：
-
删除 onCreate 方法并将他们的代码放入** onCreateView** 它将被修复
-
为您的 DialogFragment
-
如果你对两个片段都这样做会很好。不建议在 fragment 中调用 onCreate
-
我在
onCreateView()中检索数据非常好...这与片段无关。
标签： android android-fragments android-viewpager android-tablayout