Question

我想做这个post中描述的内容，但是我无法获得隐藏和滚动显示的功能。一切都在显示，抽屉菜单，标题视图和列表视图，但是当我上下滚动列表视图时，标题视图保持不变，不会隐藏和显示列表视图正在滚动。我已经查找了一些其他帖子，例如这些解决方案，但没有一个帮助。

Android design library CoordinatorLayout, AppBarLayout and DrawerLayout

DrawerLayout + CollapsingToolbar + Fragments; Toolbar won't collapse or show image

我有一个包含抽屉菜单和片段的活动。在Fragment中，我想要显示的CoordinatorLayout和AppBarLayout显示并隐藏列表视图滚动的标题视图。

以DrawerLayout作为根视图的Activity布局，其中包含主内容的FrameLayout和抽屉菜单内容的RelativeLayout。

<android.support.v4.widget.DrawerLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/drawer_layout"
    android:layout_height="match_parent"
    android:layout_width="match_parent"
    android:fitsSystemWindows="true">

    <FrameLayout
        android:id="@+id/content_frame"
        android:layout_height="match_parent"
        android:layout_width="match_parent"
        android:clickable="true"/>


    <RelativeLayout
        android:id="@+id/left_drawer"
        android:layout_height="match_parent"
        android:layout_width="280dp"
        android:layout_gravity="start"
        android:background="#eee">

        <RelativeLayout
            android:id="@+id/sliding_menu_logo_container"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:background="#eee">
            <ImageView
                android:id="@+id/sliding_menu_logo"
                android:layout_width="100dp"
                android:layout_height="100dp"
                android:layout_margin="20dp"
                android:layout_centerInParent="true"
                android:scaleType="centerInside"
                android:src="@drawable/ic_launcher" />
        </RelativeLayout>
        <ListView
            android:id="@+id/list"
            android:layout_height="wrap_content"
            android:layout_width="match_parent"
            android:layout_alignParentBottom="true"
            android:layout_below="@id/sliding_menu_logo_container"
            android:clipToPadding="true"
            android:divider="@null"
            android:dividerHeight="0dp"
            android:drawSelectorOnTop="false"
            android:fastScrollEnabled="false"
            android:scrollbarStyle="outsideOverlay" />
    </RelativeLayout>

</android.support.v4.widget.DrawerLayout>

片段布局，我希望在列表视图向上滚动时隐藏标题视图，并在列表视图向下滚动时显示标题视图。

<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:id="@+id/my_appbar_container"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical"
            android:background="#eee"
            app:layout_scrollFlags="scroll|enterAlways|exitUntilCollapsed">
            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:orientation="horizontal">
                <TextView
                    android:layout_width="0dp"
                    android:layout_height="wrap_content"
                    android:layout_weight="5"
                    android:text="First Name"/>
                <EditText
                    android:layout_width="0dp"
                    android:layout_height="wrap_content"
                    android:layout_weight="5"/>
            </LinearLayout>
            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:orientation="horizontal">
                <TextView
                    android:layout_width="0dp"
                    android:layout_height="wrap_content"
                    android:layout_weight="5"
                    android:text="Last Name"/>
                <EditText
                    android:layout_width="0dp"
                    android:layout_height="wrap_content"
                    android:layout_weight="5"/>
            </LinearLayout>
        </LinearLayout>
    </android.support.design.widget.AppBarLayout>
    <FrameLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:layout_behavior="@string/appbar_scrolling_view_behavior">
        <ListView
            android:id="@+id/rv_numbers"
            android:layout_width="match_parent"
            android:layout_height="match_parent"/>
    </FrameLayout>
</android.support.design.widget.CoordinatorLayout>

应用主题是

Theme.AppCompat.Light.DarkActionBar

活动类

public class ScrollingActivity4 extends AppCompatActivity {

    protected DrawerLayout drawerLayout;
    RelativeLayout leftDrawerView;
    protected ActionBarDrawerToggle drawerToggle;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_scrolling4);

        ScrollingActivity4Fragment scrollingActivity4Fragment = new ScrollingActivity4Fragment();
        getFragmentManager()
                .beginTransaction()
                .replace(R.id.content_frame, scrollingActivity4Fragment, "tag_scrollingActivity4Fragment")
                .addToBackStack(null)
                .commit();
    }

    @Override
    protected void onPostCreate(Bundle savedInstanceState) {
        super.onPostCreate(savedInstanceState);

        drawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);

        ActionBar actionBar = getSupportActionBar();
        actionBar.setDisplayHomeAsUpEnabled(true);
        actionBar.setDisplayShowHomeEnabled(true);
        actionBar.setDisplayShowTitleEnabled(false);
        actionBar.setDisplayUseLogoEnabled(true);
        actionBar.setHomeAsUpIndicator(R.drawable.ic_launcher);


        if (drawerToggle == null) {
            drawerToggle = new ActionBarDrawerToggle(this, drawerLayout, R.drawable.ic_launcher, R.string.drawer_open, R.string.drawer_close) {
                public void onDrawerClosed(View view) {
                }

                public void onDrawerOpened(View drawerView) {

                }

                public void onDrawerSlide (View drawerView, float slideOffset) {
                }

                public void onDrawerStateChanged(int newState) {

                }

            };
            drawerLayout.setDrawerListener(drawerToggle);
        }

        drawerToggle.syncState();

        leftDrawerView = (RelativeLayout) findViewById(R.id.left_drawer);
        ListView rvNumbers = (ListView) findViewById(R.id.list);

        String [] numbers = {"One", "Two", "Three", "Four", "Five", "Six", "Seven", "Eight", "Nine"};
        ItemArrayAdapter itemArrayAdapter = new ItemArrayAdapter(this, R.layout.list_item, numbers);
        rvNumbers.setAdapter(itemArrayAdapter);
    }

    @Override
    public boolean onOptionsItemSelected (MenuItem item) {
        // The action bar home/up action should open or close the drawer.
        // ActionBarDrawerToggle will take care of this.
        if (drawerToggle.onOptionsItemSelected(item)) {
            return true;
        }
        // Handle action buttons
        switch (item.getItemId()) {
            default:
                return super.onOptionsItemSelected(item);
        }
    }

    public class ItemArrayAdapter extends ArrayAdapter<String> {
        String[] itemList;
        private int listItemLayout;
        public ItemArrayAdapter(Context context, int layoutId, String[] itemList) {
            super(context, layoutId, itemList);
            listItemLayout = layoutId;
            this.itemList = itemList;
        }

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            int pos = position;
            String item = getItem(pos);

            ViewHolder viewHolder;
            if (convertView == null) {
                viewHolder = new ViewHolder();
                LayoutInflater inflater = LayoutInflater.from(getContext());
                convertView = inflater.inflate(listItemLayout, parent, false);
                viewHolder.item = (TextView) convertView.findViewById(R.id.tv_number);
                convertView.setTag(viewHolder);
            } else {
                viewHolder = (ViewHolder) convertView.getTag();
            }

            viewHolder.item.setText(item);
            return convertView;
        }
        class ViewHolder {
            TextView item;
        }
    }
}

片段类

public class ScrollingActivity4Fragment extends Fragment {
    LinearLayout llHeader;
    ListView rvNumbers;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.activity_scrolling4_fragment, container, false);

        llHeader = (LinearLayout) view.findViewById(R.id.ll_header);
        rvNumbers = (ListView) view.findViewById(R.id.rv_numbers);

        String [] numbers = {"One", "Two", "Three", "Four", "Five", "Six", "Seven", "Eight", "Nine"};

        ItemArrayAdapter itemArrayAdapter = new ItemArrayAdapter(getActivity(), R.layout.list_item, numbers);
        rvNumbers.setAdapter(itemArrayAdapter);

        return view;
    }

    public class ItemArrayAdapter extends ArrayAdapter<String> {
        String[] itemList;
        private int listItemLayout;
        public ItemArrayAdapter(Context context, int layoutId, String[] itemList) {
            super(context, layoutId, itemList);
            listItemLayout = layoutId;
            this.itemList = itemList;
        }

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            int pos = position;
            String item = getItem(pos);

            ViewHolder viewHolder;
            if (convertView == null) {
                viewHolder = new ViewHolder();
                LayoutInflater inflater = LayoutInflater.from(getContext());
                convertView = inflater.inflate(listItemLayout, parent, false);
                viewHolder.item = (TextView) convertView.findViewById(R.id.tv_number);
                convertView.setTag(viewHolder); // view lookup cache stored in tag
            } else {
                viewHolder = (ViewHolder) convertView.getTag();
            }

            viewHolder.item.setText(item);
            return convertView;
        }
        class ViewHolder {
            TextView item;
        }
    }


}

Answer 1

根据这篇帖子：ScrollingViewBehavior for ListView，CoordinatorLayout仅适用于RecyclerView和NestedScrollView，因此我建议您将ListView更改为{{1} }}

DrawerLayout CoordinatorLayout AppBarLayout Fragment没有在Scroll

1 个答案: