Question

我一起使用CollapsingToolbarLayout，RecyclerView和SwipeRefreshLayout：

XML：

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

<android.support.design.widget.CoordinatorLayout
    android:id="@+id/coordinator_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true">

<android.support.design.widget.AppBarLayout
    android:id="@+id/appbar"
    android:layout_width="match_parent"
    android:layout_height="@dimen/collapse_toolbar_height"
    android:fitsSystemWindows="true"
    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:contentScrim="?attr/colorPrimary"
        android:fitsSystemWindows="true"
        app:expandedTitleMarginStart="48dp"
        app:expandedTitleMarginEnd="64dp"
        app:layout_scrollFlags="scroll|exitUntilCollapsed">

        <ImageView
            android:id="@+id/toolbar_image"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:scaleType="centerCrop"
            android:fitsSystemWindows="true"
            app:layout_collapseMode="parallax" />

        <include
            layout="@layout/activity_main_toolbar"/>

    </android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>

    <android.support.v4.widget.SwipeRefreshLayout
        android:id="@+id/swipe_container"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:layout_behavior="@string/appbar_scrolling_view_behavior">

        <cz.yetanotherview.webcamviewer.app.helper.EmptyRecyclerView
            android:id="@+id/mainList"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:scrollbars="vertical" />
    </android.support.v4.widget.SwipeRefreshLayout>

    <android.support.design.widget.FloatingActionButton
        android:id="@+id/floating_action_button"
        android:layout_height="wrap_content"
        android:layout_width="wrap_content"
        app:layout_anchor="@id/appbar"
        app:layout_anchorGravity="bottom|right|end"
        android:layout_margin="16dp"
        app:fabSize="mini"
        android:src="@drawable/ic_action_edit"
        android:onClick="assignSelectedWebCamsToCategory"/>

    <com.github.clans.fab.FloatingActionMenu
        android:id="@+id/floating_action_menu"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_gravity="bottom|end"
        android:paddingRight="10dp"
        android:paddingBottom="8dp"
        android:paddingLeft="10dp"
        fab:menu_shadowColor="#37000000"
        fab:menu_colorNormal="#DA4336"
        fab:menu_colorPressed="#E75043"
        fab:menu_colorRipple="#99FFFFFF"
        fab:menu_icon="@drawable/fab_add"
        fab:menu_buttonSpacing="10dp"
        fab:menu_labels_textColor="@color/very_dark_grey"
        fab:menu_labels_textSize="14sp"
        fab:menu_labels_colorNormal="@color/white"
        fab:menu_labels_colorPressed="@color/next_grey"
        fab:menu_labels_colorRipple="#99FFFFFF"
        fab:menu_labels_margin="8dp"
        fab:menu_backgroundColor="@color/black_transparent">

        <com.github.clans.fab.FloatingActionButton
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/ic_action_content_import"
            fab:fab_size="mini"
            fab:fab_label="@string/pref_import_from_server"
            fab:fab_colorNormal="@color/white"
            app:fab_colorPressed="@color/next_grey"
            app:fab_colorRipple="#99FFFFFF"
            android:onClick="showSelectionDialog"/>

        <com.github.clans.fab.FloatingActionButton
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/ic_action_content_manually"
            fab:fab_size="mini"
            fab:fab_label="@string/create_manually"
            fab:fab_colorNormal="@color/white"
            app:fab_colorPressed="@color/next_grey"
            app:fab_colorRipple="#99FFFFFF"
            android:onClick="showAddDialog"/>

        <com.github.clans.fab.FloatingActionButton
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/ic_action_content_suggestion"
            fab:fab_size="mini"
            fab:fab_label="@string/submit_suggestion"
            fab:fab_colorNormal="@color/white"
            app:fab_colorPressed="@color/next_grey"
            app:fab_colorRipple="#99FFFFFF"
            android:onClick="showSuggestionDialog"/>

    </com.github.clans.fab.FloatingActionMenu>
</android.support.design.widget.CoordinatorLayout>

<include
    layout="@layout/activity_main_drawer"/>
</android.support.v4.widget.DrawerLayout>

代码：

    swipeRefreshLayout = (SwipeRefreshLayout) findViewById(R.id.swipe_container);
    swipeRefreshLayout.setOnRefreshListener(this);

如果折叠工具栏布局完全展开并且滚动视图（recyclerview）位于顶部，如何仅允许刷卡操作？与Google+或收件箱应用程序类似的行为。

错误：

enter image description here

不可

enter image description here

Answer 1

更新：此问题已在最新版本的支持库（23.1.1+）中得到解决。如果您使用的是旧版本的支持库，请升级或继续阅读。

如果您使用旧版本的支持库，请在AppBarLayout中添加偏移更改侦听器，以启用或禁用滑动以相应地刷新布局。其他代码可在此处获取：

https://gist.github.com/blackcj/001a90c7775765ad5212

相关变化：

public class MainActivity extends AppCompatActivity implements AppBarLayout.OnOffsetChangedListener {
    ...

    private AppBarLayout appBarLayout;
    private SwipeRefreshLayout mSwipeRefreshLayout;

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

        ...
        mSwipeRefreshLayout = (SwipeRefreshLayout) findViewById(R.id.contentView);
        appBarLayout = (AppBarLayout) findViewById(R.id.appBarLayout);

    }

    @Override
    public void onOffsetChanged(AppBarLayout appBarLayout, int i) {
        //The Refresh must be only active when the offset is zero :
        mSwipeRefreshLayout.setEnabled(i == 0);
    }

    @Override
    protected void onResume() {
        super.onResume();
        appBarLayout.addOnOffsetChangedListener(this);
    }

    @Override
    protected void onPause() {
        super.onPause();
        appBarLayout.removeOnOffsetChangedListener(this);
    }
}

Answer 2

最后，

我发现SwipeRefreshLayout在支持库版本 23.1.1 中没有任何“黑客”。

只需在您的布局中使用：

 <android.support.v4.widget.SwipeRefreshLayout
    android:id="@+id/swipe_refresh_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    app:layout_behavior="@string/appbar_scrolling_view_behavior">

        <android.support.v7.widget.RecyclerView
            android:id="@+id/recycler_view"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:scrollbars="vertical" />
</android.support.v4.widget.SwipeRefreshLayout>

并在代码中：

SwipeRefreshLayout swipeRefreshLayout = (SwipeRefreshLayout) findViewById(R.id.swipe_refresh_layout);
swipeRefreshLayout.setColorSchemeResources(R.color.green, R.color.red, R.color.yellow);
swipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
    @Override
    public void onRefresh() {
       //Your refresh code here
    }
});

不要忘记使用：

swipeRefreshLayout.setRefreshing(false);

使用代码逻辑后;）

Answer 3

如果我理解正确，您只想在扩展工具栏后才开始刷新，对吧？因此首先需要打开CollapsingToolbarLayout，然后开始刷新。我通过以下代码管理它：

     <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/coordinator_layout"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:fitsSystemWindows="true">

        <android.support.design.widget.AppBarLayout
            android:id="@+id/app_bar_layout"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:fitsSystemWindows="true"
            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="wrap_content"
                android:fitsSystemWindows="true"
                app:layout_scrollFlags="scroll|enterAlways|enterAlwaysCollapsed">

                <LinearLayout
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:orientation="vertical">
                      <!--PUT HERE WHAT EVER YOU WANT TO COLLAPSE, A TOOLBAR, ETC...-->
                </LinearLayout>
            </android.support.design.widget.CollapsingToolbarLayout>
        </android.support.design.widget.AppBarLayout>
     <android.support.v4.widget.SwipeRefreshLayout
        android:id="@+id/swipe_refresh_layout"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:layout_behavior="@string/appbar_scrolling_view_behavior">

            <android.support.v7.widget.RecyclerView
                android:id="@+id/recycler_view"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:clipToPadding="false"
                android:fadeScrollbars="false"
                android:scrollbars="vertical"
                app:layout_behavior="@string/appbar_scrolling_view_behavior" />
    </android.support.v4.widget.SwipeRefreshLayout>
</android.support.design.widget.CoordinatorLayout>

然后，在您的片段/活动中，使其实现AppBarLayout.OnOffsetChangedListener（现在，当工具栏完全展开时，将启用刷新）：

    @Override
    public void onOffsetChanged(AppBarLayout appBarLayout, int verticalOffset) {
        if (collapsingToolbarLayout.getHeight() + verticalOffset < 2 * ViewCompat.getMinimumHeight(collapsingToolbarLayout)) {
            swipeRefreshLayout.setEnabled(false);
        } else {
            swipeRefreshLayout.setEnabled(true);
        }
    }

覆盖onPause（）＆amp; onResume（）与@blackcj一样回答：

  @Override
    public void onResume() {
        super.onResume();
        appBarLayout.addOnOffsetChangedListener(this);
    }

    @Override
    public void onPause() {
        super.onPause();
        appBarLayout.removeOnOffsetChangedListener(this);
    }

然后将LinearLayoutManager设置为recyclerView：

    LinearLayoutManager layoutManager = new LinearLayoutManager(getActivity());
    layoutManager.setOrientation(LinearLayoutManager.VERTICAL);
    recyclerView.setLayoutManager(layoutManager);

对我而言，这是一个魅力，第一个appBarlayout得到扩展，只有swipeRefreshLayout触发刷新。

Answer 4

我必须使RecyclerView成为SwipeRefreshLayout的主要子项，以便使用支持库23.2.0删除该问题。无法解决在SwipeRefreshLayout

中包含包含布局的问题

<android.support.v4.widget.SwipeRefreshLayout
        android:id="@+id/my_swipeRefreshLayout"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <!--<include layout="@layout/my_RecyclerView_layout"/> issue for me here -->

        <android.support.v7.widget.RecyclerView
            android:id="@+id/my_recyclerView"
            android:layout_width="match_parent"
            android:layout_height="match_parent">
        </android.support.v7.widget.RecyclerView>

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

Answer 5

它对我来说与 offsetChangedListener 一起使用，只是性能更好的 kotlin onOffsetChanged() 实现

val toEnable = verticalOffset == 0
if (!swipeRefresh.isEnabled.xor(toEnable)) return
swipeRefresh.isEnabled = toEnable

Answer 6

Above Answer 非常适合AppCompatActivity，但如果您使用Fragment，那么以下代码段会对您有所帮助。

只需将NestedScrollView放入fragment

的xml中

<android.support.v4.widget.NestedScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_gravity="fill_vertical"
    android:clipToPadding="false"
    android:isScrollContainer="false"
    app:layout_behavior="@string/appbar_scrolling_view_behavior">

    <!-- A RecyclerView with some commonly used attributes -->
        <android.support.v4.widget.SwipeRefreshLayout xmlns:android="http://schemas.android.com/apk/res/android"
            android:id="@+id/album_timeline_swipe_refresh_layout"
            android:layout_width="match_parent"
            android:layout_height="match_parent">

            <android.support.v7.widget.RecyclerView
                android:id="@+id/album_timeline_recyclerview"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:clickable="true" />
        </android.support.v4.widget.SwipeRefreshLayout>

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

Android：CollapsingToolbarLayout和SwipeRefreshLayout卡住了

6 个答案: