xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:fitsSystemWindows="true"
    android:layout_height="match_parent">
    <android.support.design.widget.AppBarLayout
        android:id="@+id/app_bar"
        android:fitsSystemWindows="true"
        android:layout_width="match_parent"

        android:layout_height="250dp">
        <android.support.design.widget.CollapsingToolbarLayout
            android:id="@+id/ctl"
            app:collapsedTitleGravity="center"
            android:fitsSystemWindows="true"

            app:contentScrim="@color/colorGray"
            android:layout_width="match_parent"
            app:layout_scrollFlags="scroll|exitUntilCollapsed"
            android:layout_height="match_parent">
            <ImageView
                android:scaleType="fitXY"
                android:id="@+id/iv_ribao_particulars"
                android:layout_width="match_parent"
                android:layout_height="match_parent" />
            <TextView
                android:id="@+id/tv_collapsin"
                android:textColor="@color/colorWhite"
                android:layout_width="wrap_content"
                android:layout_gravity="start|bottom"
                android:layout_margin="8dp"
                android:textSize="13sp"
                android:layout_height="wrap_content" />
            <android.support.v7.widget.Toolbar
                android:id="@+id/view_toolbar"
                android:layout_width="match_parent"
                android:layout_height="?attr/actionBarSize"
                app:layout_collapseMode="pin"
               />
        </android.support.design.widget.CollapsingToolbarLayout>
    </android.support.design.widget.AppBarLayout>

    <android.support.v4.widget.NestedScrollView
        android:id="@+id/nsv_scroller"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:overScrollMode="never"
        android:scrollbars="vertical"
        app:layout_behavior="@string/appbar_scrolling_view_behavior">
        <FrameLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent">
            <WebView
                android:id="@+id/view_main"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:isScrollContainer="false"
                android:overScrollMode="never"
                android:scrollbars="vertical"/>
        </FrameLayout>
    </android.support.v4.widget.NestedScrollView>
    <FrameLayout
        android:id="@+id/ll_detail_bottom"
        android:layout_gravity="bottom"
        android:background="@android:color/white"
        android:layout_width="match_parent"
        android:layout_height="60dp">
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:padding="6dp"
            android:orientation="horizontal"
            >
            <android.support.v4.widget.Space
                android:layout_width="0dp"
                android:layout_height="1dp"
                android:layout_weight="2"/>
            <TextView
                android:id="@+id/tv_detail_bottom_like"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:textColor="@color/colorBlack"
                android:drawableTop="@mipmap/ic_daily_like"
                android:drawablePadding="3dp"
                android:text="437个赞"/>
            <android.support.v4.widget.Space
                android:layout_width="0dp"
                android:layout_height="1dp"
                android:layout_weight="3"/>
            <TextView
                android:id="@+id/tv_detail_bottom_comment"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:textColor="@color/colorBlack"
                android:drawableTop="@mipmap/ic_daily_comment"
                android:drawablePadding="3dp"
                android:text="55条评论"/>
            <android.support.v4.widget.Space
                android:layout_width="0dp"
                android:layout_height="1dp"
                android:layout_weight="3"/>
            <TextView
                android:id="@+id/tv_detail_bottom_share"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:textColor="@color/colorBlack"
                android:drawableTop="@mipmap/ic_daily_share"
                android:drawablePadding="3dp"
                android:text="分享"/>
            <android.support.v4.widget.Space
                android:layout_width="0dp"
                android:layout_height="1dp"
                android:layout_weight="2"/>
        </LinearLayout>
        <TextView
            android:layout_width="match_parent"
            android:layout_height="0.5dp"
            android:layout_gravity="top"
            android:background="#e8e8e8"/>
    </FrameLayout>
    <android.support.design.widget.FloatingActionButton
        android:id="@+id/fab_like"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_margin="30dp"
         android:src="@drawable/selector_like"
        app:elevation="6dp"
        app:pressedTranslationZ="12dp"
        app:layout_anchor="@id/app_bar"
        app:layout_anchorGravity="bottom|end" />
</android.support.design.widget.CoordinatorLayout>

java 代码

    @BindView(R.id.iv_ribao_particulars)
    ImageView ivRibaoParticulars;
    @BindView(R.id.app_bar)
    AppBarLayout appBar;

    @BindView(R.id.nsv_scroller)
    NestedScrollView nsvScroller;
    @BindView(R.id.tv_detail_bottom_like)
    TextView tvDetailBottomLike;
    @BindView(R.id.tv_detail_bottom_comment)
    TextView tvDetailBottomComment;
    @BindView(R.id.tv_detail_bottom_share)
    TextView tvDetailBottomShare;
    @BindView(R.id.ll_detail_bottom)
    FrameLayout llDetailBottom;
    @BindView(R.id.fab_like)
    FloatingActionButton fabLike;
    @BindView(R.id.view_main)
    WebView viewMain;
    @BindView(R.id.tv_collapsin)
    TextView tvCollapsin;
    @BindView(R.id.ctl)
    CollapsingToolbarLayout ctl;
    @BindView(R.id.view_toolbar)
    Toolbar viewToolbar;
    boolean isBottomShow = true;
    @Override
    public <T> void getHttpResult(T t) {
        ZhihuDetailBean t1 = (ZhihuDetailBean) t;
        String title = t1.getTitle();
        Glide.with(this).load(t1.getImage()).into(ivRibaoParticulars);
      ctl.setTitle(title);
        tvCollapsin.setText(t1.getGa_prefix());
        //折叠前的颜色
        ctl.setExpandedTitleColor(getResources().getColor(R.color.colorWhite));
        //折叠后的颜色
        ctl.setCollapsedTitleTextColor(getResources().getColor(R.color.colorBlack));
        WebViewClient webViewClient = new WebViewClient();
        viewMain.setWebViewClient(webViewClient);
        String htmlData = HtmlUtil.createHtmlData(t1.getBody(), t1.getCss(), t1.getJs());
        viewMain.loadData(htmlData, HtmlUtil.MIME_TYPE, HtmlUtil.ENCODING);



    }

    @Override
    protected int getLayout() {
        return R.layout.layout_ribao_particulars;
    }

    @Override
    protected void initView() {

    }

    @Override
    protected void initData() {
        Intent intent = getIntent();
        int id = intent.getIntExtra("id", 0);
        String img = intent.getStringExtra("img");

        
        ((RibaoPresenter) persenter).getItemDatas(id);
        //  设置滑动监听 下拉隐藏 上拉显示
        nsvScroller.setOnScrollChangeListener(new NestedScrollView.OnScrollChangeListener() {
            @Override
            public void onScrollChange(NestedScrollView v, int scrollX, int scrollY, int oldScrollX, int oldScrollY) {
                if(scrollY - oldScrollY > 0 && isBottomShow) {  //下移隐藏
                    isBottomShow = false;
                    llDetailBottom.animate().translationY(llDetailBottom.getHeight());
                } else if(scrollY - oldScrollY < 0 && !isBottomShow){    //上移出现
                    isBottomShow = true;
                    llDetailBottom.animate().translationY(0);
                }
            }
        });


    }

    @Override
    protected IPersenter initPersenter() {
        return new RibaoPresenter();
    }


    @OnClick({R.id.tv_detail_bottom_like, R.id.tv_detail_bottom_comment, R.id
            .tv_detail_bottom_share})
    public void onViewClicked(View view) {
        switch (view.getId()) {
            case R.id.tv_detail_bottom_like:
                break;
            case R.id.tv_detail_bottom_comment:
                break;
            case R.id.tv_detail_bottom_share:
                break;
        }
    }

html工具类

public class HtmlUtil
{

    //css样式,隐藏header
    private static final String HIDE_HEADER_STYLE = "<style>div.headline{display:none;}</style>";

    //css style tag,需要格式化
    private static final String NEEDED_FORMAT_CSS_TAG = "<link rel=\"stylesheet\" type=\"text/css\" href=\"%s\"/>";

    // js script tag,需要格式化
    private static final String NEEDED_FORMAT_JS_TAG = "<script src=\"%s\"></script>";

    public static final String MIME_TYPE = "text/html; charset=utf-8";

    public static final String ENCODING = "utf-8";

    private HtmlUtil()
    {

    }

    /**
     * 根据css链接生成Link标签
     *
     * @param url String
     * @return String
     */
    public static String createCssTag(String url)
    {

        return String.format(NEEDED_FORMAT_CSS_TAG, url);
    }

    /**
     * 根据多个css链接生成Link标签
     *
     * @param urls List<String>
     * @return String
     */
    public static String createCssTag(List<String> urls)
    {

        final StringBuilder sb = new StringBuilder();
        for (String url : urls)
        {
            sb.append(createCssTag(url));
        }
        return sb.toString();
    }

    /**
     * 根据js链接生成Script标签
     *
     * @param url String
     * @return String
     */
    public static String createJsTag(String url)
    {

        return String.format(NEEDED_FORMAT_JS_TAG, url);
    }

    /**
     * 根据多个js链接生成Script标签
     *
     * @param urls List<String>
     * @return String
     */
    public static String createJsTag(List<String> urls)
    {

        final StringBuilder sb = new StringBuilder();
        for (String url : urls)
        {
            sb.append(createJsTag(url));
        }
        return sb.toString();
    }

    /**
     * 根据样式标签,html字符串,js标签
     * 生成完整的HTML文档
     */

    public static String createHtmlData(String html, List<String> cssList, List<String> jsList)
    {
        final String css = HtmlUtil.createCssTag(cssList);
        final String js = HtmlUtil.createJsTag(jsList);
        return css.concat(HIDE_HEADER_STYLE).concat(html).concat(js);
    }
}