ListView的OnItemClickListener点击事件失效问题求助

问题背景 #

使用ListView组件时，列表项点击后无法触发OnItemClickListener的onItemClick方法，无法跳转至详情Fragment。列表项仅包含继承自AppCompatTextView的自定义TextView，无按钮类交互组件，相关代码及布局如下：

ListView初始化代码 #

listView.setAdapter(adapter);
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
    @Override
    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
        Toast.makeText(getContext(), "dwdwdwdw", Toast.LENGTH_SHORT).show();
        selectRow(position);
    }
});
listView.setOnScrollListener(new AbsListView.OnScrollListener() {.....

fragment_listview布局 #

<?xml version="1.0" encoding="utf-8"?>
<androidx.swiperefreshlayout.widget.SwipeRefreshLayout              
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/swipeRefreshLayout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@drawable/background">

    <ListView
        android:id="@+id/listView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:divider="@null" />

</androidx.swiperefreshlayout.widget.SwipeRefreshLayout>

列表项布局 #

<?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="wrap_content"
    android:background="@drawable/listview_background"
    android:padding="10dp">

    <....MainFontTextView
        android:id="@+id/nameTextView"
        style="@style/black_text_view"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentRight="true"
        android:singleLine="true"
        android:text="New Text" />
    <!-- 另外4个TextView -->
</RelativeLayout>

Adapter代码 #

public class BasePagingAdapter extends ArrayAdapter<Object> {

protected final static int EMPTY_TYPE = 0;
protected final static int LOADING_TYPE = 1;
protected final static int ITEM_TYPE = 2;

protected ArrayList<?> items;
protected boolean showLoadingRow;

public ArrayList<?> getItems() {
    return items;
}

public boolean isShowLoadingRow() {
    return showLoadingRow;
}

public void setShowLoadingRow(boolean showLoadingRow) {
    this.showLoadingRow = showLoadingRow;
}

public BasePagingAdapter(Context context, int resource, ArrayList<?> items) {
    super(context, resource);
    this.items = items;
}

protected static class EmptyViewHolder {
    TextView emptyTextView;
}

protected static class LoadingViewHolder {
    TextView loadingTextView;
}

@Override
public View getView(int position, View convertView, ViewGroup parent) {
    View row = convertView;

    if (getItemViewType(position) == EMPTY_TYPE) {
        EmptyViewHolder holder;
        if (row == null || !(row.getTag() instanceof EmptyViewHolder)) {
            LayoutInflater inflater = LayoutInflater.from(getContext());
            row = inflater.inflate(R.layout.row_empty, parent, false);

            holder = new EmptyViewHolder();
            holder.emptyTextView = row.findViewById(R.id.emptyTextView);

            row.setTag(holder);
        }

    } else if (getItemViewType(position) == LOADING_TYPE) {
        LoadingViewHolder holder;
        if (row == null || !(row.getTag() instanceof LoadingViewHolder)) {
            LayoutInflater inflater = LayoutInflater.from(getContext());
            row = inflater.inflate(R.layout.row_loading, parent, false);

            holder = new LoadingViewHolder();
            holder.loadingTextView = row.findViewById(R.id.loadingTextView);

            row.setTag(holder);
        }
        holder = (LoadingViewHolder) row.getTag();
        holder.loadingTextView.setText(String.format(getContext().getString(R.string.list_loading_more), Constants.PAGE_SIZE));
    }

    return row;
}

@Override
public int getCount() {
    if (items.size() > 0) {
        if (showLoadingRow) {
            return items.size() + 1;
        } else {
            return items.size();
        }
    } else {
        return 1;
    }
}

@Override
public int getViewTypeCount() {
    return 3;
}

@Override
public int getItemViewType(int position) {
    if (items.size() == 0) {
        return EMPTY_TYPE;
    } else if (items.size() == position) {
        return LOADING_TYPE;
    } else {
        return ITEM_TYPE;
    }
}

@Override
public boolean isEnabled(int position) {
    return items.size() != 0 && position != items.size();
}

public void updateItems(ArrayList<?> items) {
    this.items = items;
    notifyDataSetChanged();
}
}

问题原因 #

1. Adapter的getView方法未处理ITEM_TYPE：在getView中仅实现了EMPTY_TYPE和LOADING_TYPE的视图加载逻辑，完全漏掉了ITEM_TYPE（正常列表项）的处理，导致实际展示的列表项视图未被正确初始化，点击事件无法触发。
2. 自定义TextView可能拦截焦点：如果自定义TextView设置了android:focusable="true"或android:clickable="true"，会抢占ListView项的焦点，导致父布局的点击事件无法传递。

解决方案 #

1. 补全Adapter的getView方法中ITEM_TYPE的处理逻辑 #

在getView方法中添加ITEM_TYPE的分支，加载对应的列表项布局，并初始化ViewHolder：

@Override
public View getView(int position, View convertView, ViewGroup parent) {
    View row = convertView;

    if (getItemViewType(position) == EMPTY_TYPE) {
        // 原EMPTY_TYPE处理逻辑不变
        EmptyViewHolder holder;
        if (row == null || !(row.getTag() instanceof EmptyViewHolder)) {
            LayoutInflater inflater = LayoutInflater.from(getContext());
            row = inflater.inflate(R.layout.row_empty, parent, false);

            holder = new EmptyViewHolder();
            holder.emptyTextView = row.findViewById(R.id.emptyTextView);

            row.setTag(holder);
        }

    } else if (getItemViewType(position) == LOADING_TYPE) {
        // 原LOADING_TYPE处理逻辑不变
        LoadingViewHolder holder;
        if (row == null || !(row.getTag() instanceof LoadingViewHolder)) {
            LayoutInflater inflater = LayoutInflater.from(getContext());
            row = inflater.inflate(R.layout.row_loading, parent, false);

            holder = new LoadingViewHolder();
            holder.loadingTextView = row.findViewById(R.id.loadingTextView);

            row.setTag(holder);
        }
        holder = (LoadingViewHolder) row.getTag();
        holder.loadingTextView.setText(String.format(getContext().getString(R.string.list_loading_more), Constants.PAGE_SIZE));
    } else if (getItemViewType(position) == ITEM_TYPE) {
        // 添加ITEM_TYPE的处理逻辑
        // 假设你的列表项布局是R.layout.list_item_layout，根据实际修改
        ItemViewHolder holder;
        if (row == null || !(row.getTag() instanceof ItemViewHolder)) {
            LayoutInflater inflater = LayoutInflater.from(getContext());
            row = inflater.inflate(R.layout.list_item_layout, parent, false);

            holder = new ItemViewHolder();
            holder.nameTextView = row.findViewById(R.id.nameTextView);
            // 初始化其他4个TextView

            row.setTag(holder);
        }
        holder = (ItemViewHolder) row.getTag();
        // 绑定数据到视图，比如：
        Object item = items.get(position);
        holder.nameTextView.setText(item.toString());
        // 设置其他TextView的数据
    }

    return row;
}

// 添加ItemViewHolder类
protected static class ItemViewHolder {
    MainFontTextView nameTextView;
    // 声明其他4个TextView
}

2. 检查并修改自定义TextView的焦点属性 #

确保列表项中的所有自定义TextView没有设置android:focusable="true"或android:clickable="true"，如果有，改为false：

<....MainFontTextView
    android:id="@+id/nameTextView"
    style="@style/black_text_view"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentLeft="true"
    android:layout_alignParentRight="true"
    android:singleLine="true"
    android:text="New Text"
    android:focusable="false"
    android:clickable="false" />

3. 确认isEnabled方法逻辑正确性 #

当前Adapter的isEnabled方法逻辑正确，仅对正常列表项启用点击事件，无需修改：

@Override
public boolean isEnabled(int position) {
    return items.size() != 0 && position != items.size();
}

完成以上修改后，ListView的列表项点击事件应该能正常触发，进而执行跳转至详情Fragment的逻辑。

内容的提问来源于stack exchange，提问作者Dazai