Java android.widget.FrameLayout无法强制转换为com.ramotion.foldingcell.foldingcell_Java_Android

Java android.widget.FrameLayout无法强制转换为com.ramotion.foldingcell.foldingcell

java android

Java android.widget.FrameLayout无法强制转换为com.ramotion.foldingcell.foldingcell,java,android,Java,Android,我有一个框架布局，我想在其中有一个Foldercell，但我有这个错误，我不知道如何解决它 E/AndroidRuntime: FATAL EXCEPTION: main Process: com.xbxvxe.rndfy, PID: 25023 java.lang.ClassCastException: android.widget.FrameLayout cannot be cast to com.ramotion.fo

我有一个框架布局，我想在其中有一个Foldercell，但我有这个错误，我不知道如何解决它

E/AndroidRuntime: FATAL EXCEPTION: main
                  Process: com.xbxvxe.rndfy, PID: 25023
                  java.lang.ClassCastException: android.widget.FrameLayout cannot be cast to com.ramotion.foldingcell.FoldingCell
                      at com.xbxvxe.rndfy.fragment.FoldingCellListAdapter.getView(FoldingCellListAdapter.java:52)
                      at android.widget.AbsListView.obtainView(AbsListView.java:2365)
                      at android.widget.ListView.measureHeightOfChildren(ListView.java:1408)
                      at android.widget.ListView.onMeasure(ListView.java:1315)
                      at android.view.View.measure(View.java:22071)
                      at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6602)
                      at android.widget.FrameLayout.onMeasure(FrameLayout.java:185)
                      at android.view.View.measure(View.java:22071)
                      at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6602)
                      at android.widget.FrameLayout.onMeasure(FrameLayout.java:185)
                      at android.support.v7.widget.ContentFrameLayout.onMeasure(ContentFrameLayout.java:141)
                      at android.view.View.measure(View.java:22071)
                      at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6602)
                      at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1514)
                      at android.widget.LinearLayout.measureVertical(LinearLayout.java:806)
                      at android.widget.LinearLayout.onMeasure(LinearLayout.java:685)
                      at android.view.View.measure(View.java:22071)
                      at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6602)
                      at android.widget.FrameLayout.onMeasure(FrameLayout.java:185)
                      at android.view.View.measure(View.java:22071)
                      at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6602)
                      at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1514)
                      at android.widget.LinearLayout.measureVertical(LinearLayout.java:806)
                      at android.widget.LinearLayout.onMeasure(LinearLayout.java:685)
                      at android.view.View.measure(View.java:22071)
                      at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6602)
                      at android.widget.FrameLayout.onMeasure(FrameLayout.java:185)
                      at com.android.internal.policy.DecorView.onMeasure(DecorView.java:724)
                      at android.view.View.measure(View.java:22071)
                      at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:2422)
                      at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1504)
                      at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1761)
                      at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1392)
                      at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6752)
                      at android.view.Choreographer$CallbackRecord.run(Choreographer.java:911)
                      at android.view.Choreographer.doCallbacks(Choreographer.java:723)
                      at android.view.Choreographer.doFrame(Choreographer.java:658)
                      at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:897)
                      at android.os.Handler.handleCallback(Handler.java:790)
                      at android.os.Handler.dispatchMessage(Handler.java:99)
                      at android.os.Looper.loop(Looper.java:164)
                      at android.app.ActivityThread.main(ActivityThread.java:6494)
                      at java.lang.reflect.Method.invoke(Native Method)
                      at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
                      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)

我这行有错误

cell = (FoldingCell) vi.inflate(R.layout.fragment_manageusers, parent, false);

我的课是这样的：

public class FoldingCellListAdapter extends ArrayAdapter<Item> {

    private HashSet<Integer> unfoldedIndexes = new HashSet<>();
    private View.OnClickListener defaultRequestBtnClickListener;

    public FoldingCellListAdapter(Context context, List<Item> objects) {
        super(context, 0, objects);
    }

    @SuppressLint("ResourceType")
    @NonNull
    @Override
    public View getView(int position, View convertView, @NonNull ViewGroup parent) {
        // get item for selected view
        Item item = getItem(position);
        // if cell is exists - reuse it, if not - create the new one from resource
        FoldingCell cell = (FoldingCell) convertView;

        ViewHolder viewHolder;
        if (cell == null) {
            viewHolder = new ViewHolder();

            //original
            LayoutInflater vi = LayoutInflater.from(getContext());
            cell = (FoldingCell) vi.inflate(R.layout.fragment_manageusers, parent, false);

            // binding view parts to view holder
            viewHolder.price = cell.findViewById(R.id.title_price);
            viewHolder.time = cell.findViewById(R.id.title_time_label);
            viewHolder.date = cell.findViewById(R.id.title_date_label);
            viewHolder.fromAddress = cell.findViewById(R.id.title_from_address);
            viewHolder.toAddress = cell.findViewById(R.id.title_to_address);
            viewHolder.requestsCount = cell.findViewById(R.id.title_requests_count);
            viewHolder.pledgePrice = cell.findViewById(R.id.title_pledge);
            viewHolder.contentRequestBtn = cell.findViewById(R.id.content_request_btn);
            cell.setTag(viewHolder);
        } else {
            // for existing cell set valid valid state(without animation)
            if (unfoldedIndexes.contains(position)) {
                cell.unfold(true);
            } else {
                cell.fold(true);
            }
            viewHolder = (ViewHolder) cell.getTag();
        }

        if (null == item)
            return cell;

        // bind data from selected element to view through view holder
        viewHolder.price.setText(item.getPrice());
        viewHolder.time.setText(item.getTime());
        viewHolder.date.setText(item.getDate());
        viewHolder.fromAddress.setText(item.getFromAddress());
        viewHolder.toAddress.setText(item.getToAddress());
        viewHolder.requestsCount.setText(String.valueOf(item.getRequestsCount()));
        viewHolder.pledgePrice.setText(item.getPledgePrice());

        // set custom btn handler for list item from that item
        if (item.getRequestBtnClickListener() != null) {
            viewHolder.contentRequestBtn.setOnClickListener(item.getRequestBtnClickListener());
        } else {
            // (optionally) add "default" handler if no handler found in item
            viewHolder.contentRequestBtn.setOnClickListener(defaultRequestBtnClickListener);
        }

        return cell;
    }


    // simple methods for register cell state changes
    public void registerToggle(int position) {
        if (unfoldedIndexes.contains(position))
            registerFold(position);
        else
            registerUnfold(position);
    }

    public void registerFold(int position) {
        unfoldedIndexes.remove(position);
    }

    public void registerUnfold(int position) {
        unfoldedIndexes.add(position);
    }

    public View.OnClickListener getDefaultRequestBtnClickListener() {
        return defaultRequestBtnClickListener;
    }

    public void setDefaultRequestBtnClickListener(View.OnClickListener defaultRequestBtnClickListener) {
        this.defaultRequestBtnClickListener = defaultRequestBtnClickListener;
    }

    // View lookup cache
    private static class ViewHolder {
        TextView price;
        TextView contentRequestBtn;
        TextView pledgePrice;
        TextView fromAddress;
        TextView toAddress;
        TextView requestsCount;
        TextView date;
        TextView time;
    }
}

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:id="@+id/fragment_manageusers"
    android:layout_height="wrap_content">

    <ListView xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:tools="http://schemas.android.com/tools"
        android:id="@+id/listUsers"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="@drawable/background"
        android:clipChildren="false"
        android:clipToPadding="false"
        android:divider="@android:color/transparent"
        android:dividerHeight="10dp"
        android:paddingBottom="@dimen/activity_vertical_margin"
        android:paddingLeft="@dimen/activity_horizontal_margin"
        android:paddingRight="@dimen/activity_horizontal_margin"
        android:paddingTop="@dimen/activity_vertical_margin"
        android:scrollbars="none"
        tools:context=".fragment.ManageusersFragment"/>

    <com.ramotion.foldingcell.FoldingCell xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:folding-cell="http://schemas.android.com/apk/res-auto"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/cell"
        folding-cell:additionalFlipsCount="2"
        folding-cell:animationDuration="1300"
        folding-cell:backSideColor="@color/bgBackSideColor"
        folding-cell:cameraHeight="30">

        <!-- CONTENT (UNFOLDED) LAYOUT (MUST BE AT LEAST 2x times BIGGER than content layout bellow)-->
        <include layout="@layout/cell_content_layout" />

        <!-- TITLE (FOLDED) LAYOUT (MUST BE AT LEAST 2x times SMALLER than content layout above) -->
        <include layout="@layout/cell_title_layout" />

    </com.ramotion.foldingcell.FoldingCell>


</FrameLayout>

公共类FoldingCellListAdapter扩展了ArrayAdapter{
私有HashSet unfoldedIndex=新HashSet（）；
private View.OnClickListener DefaultRequestBtclClickListener；
公共FoldingCellListAdapter（上下文、列表对象）{
超级（上下文，0，对象）；
}
@SuppressLint（“资源类型”）
@非空
@凌驾
公共视图getView（int位置，视图转换视图，@NonNull视图组父级）{
//获取所选视图的项目
项目=获取项目（位置）；
//如果单元存在-重用它，如果不存在-从资源创建新的单元
FoldingCell=（FoldingCell）convertView；
持票人持票人；
if（单元格==null）{
viewHolder=新的viewHolder（）；
//原创的
LayoutInflater vi=LayoutInflater.from（getContext（））；
单元格=（折叠单元格）vi.充气（R.layout.fragment\u manageusers，父级，false）；
//将视图零件绑定到视图保持架
viewHolder.price=cell.findviewbyd（R.id.title\u price）；
viewHolder.time=cell.findViewById（R.id.title\u time\u标签）；
viewHolder.date=cell.findViewById（R.id.title\u date\u标签）；
viewHolder.fromAddress=cell.findViewById（R.id.title\u from\u address）；
viewHolder.toAddress=cell.findViewById（R.id.title\u to\u地址）；
viewHolder.requestscont=cell.findViewById（R.id.title\u requests\u count）；
viewHolder.price=cell.findViewById（R.id.title\u质押）；
viewHolder.contentRequestBtn=cell.findviewbyd（R.id.content\u request\u btn）；
cell.setTag（viewHolder）；
}否则{
//对于现有单元集有效状态（无动画）
if（展开索引包含（位置））{
单元展开（真）；
}否则{
细胞折叠（真）；
}
viewHolder=（viewHolder）cell.getTag（）；
}
if（null==项）
返回单元；
//通过视图保持器将选定元素中的数据绑定到视图
viewHolder.price.setText（item.getPrice（））；
viewHolder.time.setText（item.getTime（））；
viewHolder.date.setText（item.getDate（））；
viewHolder.fromAddress.setText（item.getFromAddress（））；
viewHolder.toAddress.setText（item.getToAddress（））；
viewHolder.requestscont.setText（String.valueOf（item.getrequestscont（））；
viewHolder.swarePrice.setText（item.getSwarePrice（））；
//为该项中的列表项设置自定义btn处理程序
if（item.getRequestBtnClickListener（）！=null）{
viewHolder.contentRequestBtn.setOnClickListener（item.getRequestBtnClickListener（））；
}否则{
//（可选）如果在项中未找到处理程序，则添加“默认”处理程序
viewHolder.contentRequestBtn.setOnClickListener（defaultrequestbtnclickllistener）；
}
返回单元；
}
//寄存器单元状态更改的简单方法
公共无效寄存器日志（内部位置）{
if（展开索引包含（位置））
注册文件夹（位置）；
其他的
注册信息（位置）；
}
公共无效注册表文件夹（整型位置）{
展开索引。移除（位置）；
}
公共无效注册表文件夹（整型位置）{
展开索引。添加（位置）；
}
public View.OnClickListener GetDefaultRequestBtclClickListener（）{
返回DefaultRequestBtclListener；
}
public void setDefaultRequestBtclClickListener（View.OnClickListener DefaultRequestBtclListener）{
this.defaultRequestBtnClickListener=defaultRequestBtnClickListener；
}
//视图查找缓存
私有静态类视图持有者{
文本视图价格；
文本视图内容请求BTN；
TextView质权价格；
TextView fromAddress；
文本视图地址；
文本视图请求；
文本查看日期；
文本查看时间；
}
}

我的布局是这样的：

public class FoldingCellListAdapter extends ArrayAdapter<Item> {

    private HashSet<Integer> unfoldedIndexes = new HashSet<>();
    private View.OnClickListener defaultRequestBtnClickListener;

    public FoldingCellListAdapter(Context context, List<Item> objects) {
        super(context, 0, objects);
    }

    @SuppressLint("ResourceType")
    @NonNull
    @Override
    public View getView(int position, View convertView, @NonNull ViewGroup parent) {
        // get item for selected view
        Item item = getItem(position);
        // if cell is exists - reuse it, if not - create the new one from resource
        FoldingCell cell = (FoldingCell) convertView;

        ViewHolder viewHolder;
        if (cell == null) {
            viewHolder = new ViewHolder();

            //original
            LayoutInflater vi = LayoutInflater.from(getContext());
            cell = (FoldingCell) vi.inflate(R.layout.fragment_manageusers, parent, false);

            // binding view parts to view holder
            viewHolder.price = cell.findViewById(R.id.title_price);
            viewHolder.time = cell.findViewById(R.id.title_time_label);
            viewHolder.date = cell.findViewById(R.id.title_date_label);
            viewHolder.fromAddress = cell.findViewById(R.id.title_from_address);
            viewHolder.toAddress = cell.findViewById(R.id.title_to_address);
            viewHolder.requestsCount = cell.findViewById(R.id.title_requests_count);
            viewHolder.pledgePrice = cell.findViewById(R.id.title_pledge);
            viewHolder.contentRequestBtn = cell.findViewById(R.id.content_request_btn);
            cell.setTag(viewHolder);
        } else {
            // for existing cell set valid valid state(without animation)
            if (unfoldedIndexes.contains(position)) {
                cell.unfold(true);
            } else {
                cell.fold(true);
            }
            viewHolder = (ViewHolder) cell.getTag();
        }

        if (null == item)
            return cell;

        // bind data from selected element to view through view holder
        viewHolder.price.setText(item.getPrice());
        viewHolder.time.setText(item.getTime());
        viewHolder.date.setText(item.getDate());
        viewHolder.fromAddress.setText(item.getFromAddress());
        viewHolder.toAddress.setText(item.getToAddress());
        viewHolder.requestsCount.setText(String.valueOf(item.getRequestsCount()));
        viewHolder.pledgePrice.setText(item.getPledgePrice());

        // set custom btn handler for list item from that item
        if (item.getRequestBtnClickListener() != null) {
            viewHolder.contentRequestBtn.setOnClickListener(item.getRequestBtnClickListener());
        } else {
            // (optionally) add "default" handler if no handler found in item
            viewHolder.contentRequestBtn.setOnClickListener(defaultRequestBtnClickListener);
        }

        return cell;
    }


    // simple methods for register cell state changes
    public void registerToggle(int position) {
        if (unfoldedIndexes.contains(position))
            registerFold(position);
        else
            registerUnfold(position);
    }

    public void registerFold(int position) {
        unfoldedIndexes.remove(position);
    }

    public void registerUnfold(int position) {
        unfoldedIndexes.add(position);
    }

    public View.OnClickListener getDefaultRequestBtnClickListener() {
        return defaultRequestBtnClickListener;
    }

    public void setDefaultRequestBtnClickListener(View.OnClickListener defaultRequestBtnClickListener) {
        this.defaultRequestBtnClickListener = defaultRequestBtnClickListener;
    }

    // View lookup cache
    private static class ViewHolder {
        TextView price;
        TextView contentRequestBtn;
        TextView pledgePrice;
        TextView fromAddress;
        TextView toAddress;
        TextView requestsCount;
        TextView date;
        TextView time;
    }
}

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:id="@+id/fragment_manageusers"
    android:layout_height="wrap_content">

    <ListView xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:tools="http://schemas.android.com/tools"
        android:id="@+id/listUsers"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="@drawable/background"
        android:clipChildren="false"
        android:clipToPadding="false"
        android:divider="@android:color/transparent"
        android:dividerHeight="10dp"
        android:paddingBottom="@dimen/activity_vertical_margin"
        android:paddingLeft="@dimen/activity_horizontal_margin"
        android:paddingRight="@dimen/activity_horizontal_margin"
        android:paddingTop="@dimen/activity_vertical_margin"
        android:scrollbars="none"
        tools:context=".fragment.ManageusersFragment"/>

    <com.ramotion.foldingcell.FoldingCell xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:folding-cell="http://schemas.android.com/apk/res-auto"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/cell"
        folding-cell:additionalFlipsCount="2"
        folding-cell:animationDuration="1300"
        folding-cell:backSideColor="@color/bgBackSideColor"
        folding-cell:cameraHeight="30">

        <!-- CONTENT (UNFOLDED) LAYOUT (MUST BE AT LEAST 2x times BIGGER than content layout bellow)-->
        <include layout="@layout/cell_content_layout" />

        <!-- TITLE (FOLDED) LAYOUT (MUST BE AT LEAST 2x times SMALLER than content layout above) -->
        <include layout="@layout/cell_title_layout" />

    </com.ramotion.foldingcell.FoldingCell>


</FrameLayout>

更新

// View lookup cache
private static class ViewHolder {
    TextView price;
    TextView contentRequestBtn;
    TextView pledgePrice;
    TextView fromAddress;
    TextView toAddress;
    TextView requestsCount;
    TextView date;
    TextView time;
    // Add FoldingCell here
    FoldingCell foldingCell;
}

更新2

将
```
fragment\u manageusers
```
布局拆分为两个布局

fragmentusers.xml包含

ListView

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:id="@+id/fragment_manageusers"
android:layout_height="wrap_content">

<ListView xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/listUsers"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@drawable/background"
    android:clipChildren="false"
    android:clipToPadding="false"
    android:divider="@android:color/transparent"
    android:dividerHeight="10dp"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:scrollbars="none"
    tools:context=".fragment.ManageusersFragment"/>

 </FrameLayout>

list\u item\u manageruser.xml包含列表项行视图的列表项，该行视图将膨胀covertView列表视图项

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:id="@+id/fragment_manageusers"
android:layout_height="wrap_content">
<com.ramotion.foldingcell.FoldingCell xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:folding-cell="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:id="@+id/cell"
    folding-cell:additionalFlipsCount="2"
    folding-cell:animationDuration="1300"
    folding-cell:backSideColor="@color/bgBackSideColor"
    folding-cell:cameraHeight="30">

    <!-- CONTENT (UNFOLDED) LAYOUT (MUST BE AT LEAST 2x times BIGGER than content layout bellow)-->
    <include layout="@layout/cell_content_layout" />

    <!-- TITLE (FOLDED) LAYOUT (MUST BE AT LEAST 2x times SMALLER than content layout above) -->
    <include layout="@layout/cell_title_layout" />

</com.ramotion.foldingcell.FoldingCell>
 </FrameLayout>

此行的含义

FoldingCell cell=（FoldingCell）convertView此代码在许多级别上都有很多错误。请再次尝试阅读您正在阅读的教程。@KhaledLela convertView用于重用旧视图，因为正如您所知，适配器允许您使用新数据重用某些视图。它还可以通过不重新创建已经创建的视图来优化性能，因为我已经创建了一个视图，通过始终返回到我的drawer@mudit_sen这不是我要学的教程，我想将折叠单元格视图与我的代码集成在一起，但它与我的代码在很多级别上都不兼容，我不知道如何解决它。这是您在问题中添加的布局文件，并且在列表视图中为该项充气。我无法删除这一行“FoldingCell=（FoldingCell）convertView；”，因为它是一个类，我需要它来获得我在最后使用的折叠和展开运动，就像if（unfoldingDexes.contains（position））{cell.unfold（true）；}unfold（boolean）是一个方法，它需要在某个地方声明，这是使用line FoldingCell=（FoldingCell）con