嗨，我需要创建像 whatsapp 这样的布局，它滚动操作栏但不滚动 tabLayout。我使用 viewpager 在其中加载片段。在片段中，我添加了 listview 但在 Listview 上滚动该操作栏不在那里滚动。使用一些关于stackoverflow的教程，我知道为此需要使用nestedScrollView，它对我有用。但它停止滚动列表视图。我为此使用了此代码。
activity_my.xml
<?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:id="@+id/main_content"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.design.widget.AppBarLayout
android:id="@+id/appbar"
android:layout_width="match_parent"
android:layout_height="200dp"
android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">
<android.support.design.widget.CollapsingToolbarLayout
android:id="@+id/collapsing_toolbar"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_scrollFlags="scroll|exitUntilCollapsed"></android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<FrameLayout
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:layout_gravity="bottom"
app:layout_anchor="@+id/appbar"
app:layout_anchorGravity="bottom"
app:layout_collapseMode="none">
<ImageView
android:id="@+id/tabBg"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/primary"
android:scaleType="fitXY" />
<android.support.design.widget.TabLayout
android:id="@+id/tabs"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:layout_gravity="bottom"
android:background="#00000000"
app:layout_anchor="@+id/appbar"
app:layout_anchorGravity="bottom"
app:layout_collapseMode="none"
app:tabGravity="fill"
app:tabIndicatorColor="#fff"
app:tabIndicatorHeight="2dp"
app:tabMode="scrollable"
app:tabSelectedTextColor="#fff"
app:tabTextColor="#fff" />
</FrameLayout>
<android.support.v4.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginTop="?attr/actionBarSize"
app:layout_behavior="@string/appbar_scrolling_view_behavior">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:minHeight="1000dp"
android:orientation="vertical">
<android.support.v4.view.ViewPager
android:id="@+id/pager"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"/>
</LinearLayout>
</android.support.v4.widget.NestedScrollView>
<!--<android.support.v4.view.ViewPager
android:id="@+id/pager"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginTop="?attr/actionBarSize"
app:layout_behavior="@string/appbar_scrolling_view_behavior" />-->
</android.support.design.widget.CoordinatorLayout>
我的活动.java
public class MyActivity extends AppCompatActivity {
private TabLayout tabLayout;
private ViewPager viewPager;
ArrayList<Fragment> fragmentArrayList;
TabAdapter tabAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_my);
/*Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
getSupportActionBar().setDisplayHomeAsUpEnabled(false);*/
viewPager = (ViewPager) findViewById(R.id.pager);
setupViewPager(viewPager);
tabLayout = (TabLayout) findViewById(R.id.tabs);
tabLayout.setupWithViewPager(viewPager);
}
private void setupViewPager(ViewPager viewPager) {
TabAdapter adapter = new TabAdapter(getSupportFragmentManager());
adapter.addFragment(new OneFragment(), "ONE");
adapter.addFragment(new OneFragment(), "TWO");
adapter.addFragment(new OneFragment(), "THREE");
viewPager.setAdapter(adapter);
}
}
FragmentOne.java
public class OneFragment extends Fragment {
ListView listTest;
ArrayList<String> itemList;
ArrayAdapter<String> adapter;
public OneFragment() {
// Required empty public constructor
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_one, container, false);
listTest = (ListView) view.findViewById(R.id.listTest);
itemList = new ArrayList<>();
for (int i = 0; i < 50; i++) {
itemList.add("Item : " + i);
}
adapter = new ArrayAdapter<String>(getActivity(), android.R.layout.simple_list_item_1, itemList);
listTest.setAdapter(adapter);
return view;
}
}
fragment_one.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ListView
android:id="@+id/listTest"
android:layout_width="match_parent"
android:layout_height="match_parent"></ListView>
</RelativeLayout>
我使用了 LinearLayout monHeight = 1000dp，因为如果我在 nestedScrollView 中使用 android:fillViewPort="true" 并从 LinearLayout 中删除 minHeight ，那么 listview 会显示但不会滚动。现在它滚动但直到 1000dp 然后其他项目不显示。