我已经创建了一个自定义列表视图,每个元素有一个webview。
我的问题是,当我点击一个元素时,它接受了错误的元素位置。
这是我的自定义列表视图

public class ListViewCustomAdapter extends BaseAdapter {
public ArrayList<String> mywebview;
public Activity context;
public LayoutInflater inflater;

public ListViewCustomAdapter(Activity context, ArrayList<String> mywebview) {
    //super();
    this.mywebview = new ArrayList<String>();
    this.context = context;
    this.mywebview = mywebview;
    this.inflater = (LayoutInflater) context
            .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}

@Override
public int getCount() {
    return mywebview.size();
}

@Override
public String getItem(int position) {
    return mywebview.get(position);
}

@Override
public long getItemId(int position) {
    return position;
}

public static class ViewHolder {
    WebView mywebviewholder;
}

@Override
public View getView(int position, View convertView, ViewGroup parent) {
    ViewHolder holder;
    if (convertView == null) {
        holder = new ViewHolder();
        convertView = inflater.inflate(R.layout.mylistview2, null, false);
        holder.mywebviewholder = (WebView) convertView
                .findViewById(R.id.weblistview);

        holder.mywebviewholder
                .setOnTouchListener(new my.student.application.WebViewClickListener(
                        holder.mywebviewholder, parent, position));
        convertView.setTag(holder);
    } else {
        holder = (ViewHolder) convertView.getTag();
    }
    holder.mywebviewholder.loadDataWithBaseURL("", mywebview.get(position)
            .toString(), "text/html", "UTF-8", "");
    return convertView;
}

我的WebView单击侦听器
public class WebViewClickListener implements View.OnTouchListener {
private int position;
private ViewGroup vg;
private WebView wv;

public WebViewClickListener(WebView wv, ViewGroup vg, int position) {
    this.vg = vg;
    this.position = position;
    this.wv = wv;
}

public boolean onTouch(View v, MotionEvent event) {
    int action = event.getAction();
    switch (action) {
    case MotionEvent.ACTION_CANCEL:
        return true;
    case MotionEvent.ACTION_UP:
        sendClick();
        return true;
    }
    return false;
}

public void sendClick() {
    ListView lv = (ListView) vg;
    lv.performItemClick(wv, position, 0);
}

谢谢你的帮助
编辑:我发现了一些奇怪的事情。如果在listview.xml中更改了webview的高度大小,当我单击某个元素时,它将更改该元素的位置
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent" android:layout_height="wrap_content"
android:orientation="vertical" android:padding="3dip">
<WebView android:id="@+id/weblistview" android:layout_width="fill_parent"
    android:layout_height="200dip"></WebView>

有了这个高度,如果我有5个元素的顺序是:2 1 0 2 1
我真的不知道问题在哪里

最佳答案

getView()中,您正在将触摸监听器设置为支架中的视图。该代码只对列表中的第一个可见元素调用(当convertViewnull时)
您应该在返回convertView之前将侦听器设置为当前项,因此您的代码应该如下所示:

@Override
public View getView(int position, View convertView, ViewGroup parent) {
    ViewHolder holder;
    if (convertView == null) {
        holder = new ViewHolder();
        convertView = inflater.inflate(R.layout.mylistview2, null, false);
        holder.mywebviewholder = (WebView) convertView
                .findViewById(R.id.weblistview);
        convertView.setTag(holder);
    } else {
        holder = (ViewHolder) convertView.getTag();
    }
    holder.mywebviewholder
                .setOnTouchListener(new my.student.application.WebViewClickListener(
                        holder.mywebviewholder, parent, position));
    holder.mywebviewholder.loadDataWithBaseURL("", mywebview.get(position)
            .toString(), "text/html", "UTF-8", "");
    return convertView;
}

holder的想法是避免通过xml搜索每个findviewbyid。

07-28 01:11
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