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Ich bin fest mit dem Scrollen in einem Fragment in ein Tablayout. Das ist meine MainActivity KlasseScrollen in Fragment funktioniert nicht in einem TabLayout
public class Mainctivity extends AppCompatActivity {
private TabLayout tabLayout;
private ViewPager viewPager;
ViewPagerAdapter viewPagerAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
viewPager = (ViewPager) findViewById(R.id.viewpager);
setupViewPager();
tabLayout = (TabLayout) findViewById(R.id.tabs);
tabLayout.setViewPager(TabLayout.GRAVITY_FILL);
tabLayout.setupWithViewPager(viewPager);
}
private void setupViewPager() {
viewPagerAdapter = new ViewPagerAdapter(getSupportFragmentManager());
String [] tabNames = new String[{"Technology","World","Life"} ;
int [] tabTopicIds = new int[]{1,2,3} ;
for(int i=0; i< 7; i++)
{
OneFragment homeFeed = new OneFragment();
Bundle homeArgs = new Bundle();
homeArgs.putString("PAGE_NUMBER",""+tabTopicIds[i]);
homeFeed.setArguments(homeArgs);
viewPagerAdapter.addFragment(homeFeed, tabNames[i]);
}
viewPager.setAdapter(viewPagerAdapter);
}
class ViewPagerAdapter extends FragmentPagerAdapter {
private final List<Fragment> mFragmentList = new ArrayList<>();
private final List<String> mFragmentTitleList = new ArrayList<>();
public ViewPagerAdapter(FragmentManager manager) {
super(manager);
}
@Override
public Fragment getItem(int position) {
return mFragmentList.get(position);
}
@Override
public int getCount() {
return mFragmentList.size();
}
public void addFragment(Fragment fragment, String title) {
mFragmentList.add(fragment);
mFragmentTitleList.add(title);
}
@Override
public CharSequence getPageTitle(int position) {
return mFragmentTitleList.get(position);
}
}
}
Und hier ist mein activity_main Layout.
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout 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">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="@color/colorPrimary"
app:layout_scrollFlags="scroll|enterAlways"
app:popupTheme="@style/ThemeOverlay.AppCompat.Light" />
<android.support.design.widget.TabLayout
android:id="@+id/tabs"
android:layout_width="match_parent"
android:layout_height="48dip"
android:background="@color/white"
app:tabIndicatorColor="@color/colorPrimary"
app:pstsIndicatorHeight="3dip"
app:pstsTextAllCaps="false"
app:tabPaddingStart="2dp"
app:tabPaddingEnd="2dp"
app:tabGravity="fill"/>
<android.support.v4.view.ViewPager
android:id="@+id/viewpager"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior" />
</android.support.design.widget.AppBarLayout>
</android.support.design.widget.CoordinatorLayout>
Für jedes Register gibt es eine FragmentOne Klasse mit viewPager zugeordnet ist, und das ist onCreateView Methode der FragmentOne
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View mainView = inflater.inflate(R.layout.activity_main, container, false);
listView = (ListView) mainView.findViewById(R.id.list);
feedItems = new ArrayList<FeedItem>();
listAdapter = new FeedListAdapter(getActivity(), feedItems);
listView.setAdapter(listAdapter);
listView.setOnScrollListener(new EndlessScrollListener() {
@Override
public boolean onLoadMore(int page, int totalItemsCount) {
if(totalItemsCount > 150) return false;
return true;
}
@Override
public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
if(!isLoading && firstVisibleItem + visibleItemCount >= totalItemCount && totalItemCount<MAX_ITEM_IN_LIST){
requestToServer(); // request for next items
}
}
});
return mainView;
}
Layout FragmentOne
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/swipe_refresh_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<ListView
android:id="@+id/list"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:divider="@android:color/darker_gray"
android:background="@color/white"
android:dividerHeight="1.0sp"/>
</LinearLayout>
Here I listView.setOnScrollListener in Listview von FragmentOne hinzufügen aber funktioniert nicht scrollen. Aber wenn ich FragmentOne ein anderes Layout wie LinearLayout außer Tablayout einfügen, funktioniert es gut.
in Layout FragmentOne machen Eltern Linearlayout Höhe Match – Pavya
Sie den Code in viewpager AppBarLayout in activity_main.xml gesetzt worden. Schneiden Sie den ViewPager aus und fügen Sie ihn außerhalb von AppBarLayout ein. Hoffe es löst es. –