，将焦点更改为所有小部件的错误，例如textview或按钮，如：

Question

我需要点击列表项而不是单独的textview或图像视图。我的活动代码调用适配器如下：

@Override
    public void onRequestTaskCompleted(String response) {
        // TODO Auto-generated method stub

        locList = new ArrayList<LocationData>();
        locList = LocationData.getDataFromJSONArray(response);
        list = (ListView) findViewById(R.id.locationlist_listview);

        adapter = new LocationListAdapter(this, locList);

        list.setAdapter(adapter);
    }

适配器类如下：

public class LocationListAdapter extends BaseAdapter  {
    Context context;
    ArrayList<LocationData> data;
    LayoutInflater inflater;
    ViewHolder holder;


    private LayoutInflater mLayoutInflater;

    public LocationListAdapter(Context context, ArrayList<LocationData> arrayList
            ) {

        this.context = context;
        data = arrayList;
        // get the layout inflater
        mLayoutInflater = (LayoutInflater) context
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    }

    @Override
    public int getCount() {

        return data.size();
    }

    @Override
    public Object getItem(int position) {

        return null;
    }

    @Override
    public long getItemId(int arg0) {

        return 0;
    }

    private class ViewHolder {

        TextView locName,locAddress;
        ImageView locPic;

    }


    @Override
    public View getView(final int position, View convertView, ViewGroup arg2) {
        // TODO Auto-generated method stub

        if (convertView == null) {
            holder = new ViewHolder();

            convertView = mLayoutInflater.inflate(
                    R.layout.locationlist_listitem, null);

            holder.locName = (TextView) convertView
                    .findViewById(R.id.loclistitem_name);
            holder.locAddress = (TextView) convertView
                    .findViewById(R.id.loclistitem_address);
            holder.locPic = (ImageView) convertView
                    .findViewById(R.id.loclistitem_pic);

            convertView.setTag(holder);
        } else {

            holder = (ViewHolder) convertView.getTag();

        }


        holder.locName.setText(data.get(position).getLocationName());
        holder.locName.setId(data.get(position).getLocationId());
        holder.locAddress.setText(data.get(position).getAddress1().concat(data.get(position).getAddress2()));           

        holder.locPic.setBackgroundResource(R.drawable.songs);

        return convertView;

    }

如果设置onclick任何textview它工作正常但我需要整个列表项可点击。我从活动中调用我的适配器之前尝试了list.setOnItemClickListener，但这并不起作用。以下是我试过的内容

list.setOnItemClickListener(new OnItemClickListener() {

            @Override
            public void onItemClick(AdapterView<?> parent, View view,
                    int position, long id) {

                LocationData lc = new LocationData();
                lc = locList.get(position);
                int locId = lc.getLocationId();
                AppSession sInstance = AppSession.getInstance();
                sInstance.setLocId(locId);
            }
        });

ListItem XML：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://splashurl.com/m22ydvb
    android:id="@+id/itemdisplaylist_layout"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:minHeight="@dimen/loclist_item_minumum_height"
    android:orientation="horizontal"
    android:weightSum="1" >

    <ImageView
        android:id="@+id/loclistitem_pic"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:layout_weight="0.2"
        android:contentDescription="@null" />

    <LinearLayout
        android:layout_width="0dp"
        android:layout_height="match_parent"
        android:layout_weight="0.7"
        android:orientation="vertical"
        android:weightSum="1" >

        <TextView
            android:id="@+id/loclistitem_name"
            android:layout_width="match_parent"
            android:layout_height="0dp"
            android:layout_weight="0.3"
            android:textColor="@color/loclistitem_text"
            android:textIsSelectable="true" >
        </TextView>

        <TextView
            android:id="@+id/loclistitem_address"
            android:layout_width="match_parent"
            android:layout_height="0dp"
            android:layout_weight="0.5"
            android:textIsSelectable="true" >
        </TextView>             

</LinearLayout>

更改了GetView方法：

@Override
    public View getView(final int position, View convertView, ViewGroup arg2) {
        // TODO Auto-generated method stub

        if (convertView == null) {
            holder = new ViewHolder();

            convertView = mLayoutInflater.inflate(
                    R.layout.locationlist_listitem, null);

            holder.locName = (TextView) convertView
                    .findViewById(R.id.loclistitem_name);
            holder.locAddress = (TextView) convertView
                    .findViewById(R.id.loclistitem_address);

            holder.locPic = (ImageView) convertView
                    .findViewById(R.id.loclistitem_pic);



            convertView.setTag(holder);
        } else {

            holder = (ViewHolder) convertView.getTag();

        }
        holder.locName.setTag(position);

        holder.locName.setText(data.get(position).getLocationName());

        holder.locName.setId(data.get(position).getLocationId());
        holder.locAddress.setText(data.get(position).getAddress1().concat(data.get(position).getAddress2()));

        holder.locPic.setBackgroundResource(R.drawable.songs);
        convertView.setOnClickListener(this);

        return convertView;

    }

    @Override
    public void onClick(View v) {
            int position = (Integer)v.findViewById(R.id.loclistitem_name).getTag();
            Log.d("list item clicked on :" , Integer.toString(position));

        }

此外，我尝试实现从适配器到活动的回调，但这也不起作用。可能是我没有正确行事。

我已经阅读了很多类似的帖子并尝试了很多东西，但似乎错过了以正确的方式实现它的东西。

请告知。

Answer 1

@Override
public View getView(final int position, View convertView, ViewGroup arg2) {
    // TODO Auto-generated method stub

    if (convertView == null) {
        holder = new ViewHolder();

        convertView = mLayoutInflater.inflate(
                R.layout.locationlist_listitem, null);

        holder.locName = (TextView) convertView
                .findViewById(R.id.loclistitem_name);
        holder.locAddress = (TextView) convertView
                .findViewById(R.id.loclistitem_address);
        holder.locPic = (ImageView) convertView
                .findViewById(R.id.loclistitem_pic);

        convertView.setTag(holder);
    } else {

        holder = (ViewHolder) convertView.getTag();

    }


    holder.locName.setText(data.get(position).getLocationName());
    holder.locName.setId(data.get(position).getLocationId());
    holder.locAddress.setText(data.get(position).getAddress1().concat(data.get(position).getAddress2()));           

    holder.locPic.setBackgroundResource(R.drawable.songs);

    // apply on your getview like this for image view also

    holder.locName.setOnclickListener(){
    }     

    return convertView;

}

Answer 2

您可以在convertView方法中设置getView的点击监听器。

使用以下代码：

convertView.setOnClickListener(this); 
// you need implements OnClickListener on your Adapter class or you can use (new onClick.....) instead of `this`

获取点击项目的位置，您可以使用TAG。喜欢以下代码：

holder.locName.setTag(position);  // paste this after else method in getView

然后在onClick方法中：

@Override
public void onClick(View v) {
        int position = (Integer)v.findViewById(R.id.loclistitem_name).getTag();
        Log.d("list item clicked on :" , Integer.toString(position));

    }

所以你的getView必须像下面的代码一样：

 @Override
    public View getView(final int position, View convertView, ViewGroup arg2) {
        // TODO Auto-generated method stub

        if (convertView == null) {
            holder = new ViewHolder();

            convertView = mLayoutInflater.inflate(
                    R.layout.locationlist_listitem, null);

            holder.locName = (TextView) convertView
                    .findViewById(R.id.loclistitem_name);
            holder.locAddress = (TextView) convertView
                    .findViewById(R.id.loclistitem_address);
            holder.locPic = (ImageView) convertView
                    .findViewById(R.id.loclistitem_pic);

            convertView.setTag(holder);
        } else {

            holder = (ViewHolder) convertView.getTag();

        }

        holder.locName.setTag(position);

        holder.locName.setText(data.get(position).getLocationName());
        holder.locName.setId(data.get(position).getLocationId());
        holder.locAddress.setText(data.get(position).getAddress1().concat(data.get(position).getAddress2()));           

        holder.locPic.setBackgroundResource(R.drawable.songs);

        convertView.setOnClickListener(this);
        return convertView;

    }

通过这种方式，您在Activity类中不需要list.setOnItemClickListener。

另一种方式：

只要ListView元素中存在按钮或ImageButtons等可点击元素，它们就会控制点击事件。因此，ListView无法获得接受点击事件的机会。

<强>溶液

设置imageButton's属性：

 android:focusable="false"

或者您可以添加：

 android:descendantFocusability="blocksDescendants"

到父版面

然后，您可以在活动类

上使用list.setOnItemClickListener

Answer 3

在您的充气机布局中

，将焦点更改为所有小部件的错误，例如textview或按钮，如：

android:focusable="false"
android:focusableInTouchMode="false"

并在充气机的父布局中添加：

android:descendantFocusability="blocksDescendants"

现在您的列表视图项目可聚焦，当您点击listitem时它就可以使用。

列表查看项目可点击

3 个答案:

，将焦点更改为所有小部件的错误，例如textview或按钮，如：