ListView:textIsSelectable和onItemClick

Question

上下文

我有一个列表视图,其中行基本上由两个TextView(标题和内容)组成.

第二个TextView可以有一个长文本,所以我设置maxLines="6".当用户点击该行时,我将其删除maxLines以显示全文.

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

        TextView content = (TextView ) view.findViewById(R.id.content);

        int limit = getResources().getInteger(R.integer.default_max_lines);

        if (content.getMaxLines() > limit) {
            content.setMaxLines(limit);
        }
        else {
            content.setMaxLines(Integer.MAX_VALUE);
        }
    }

问题

以上代码效果很好.我希望能够选择我的第二个TextView(内容),所以我设置android:textIsSelectable="true"(也尝试以编程方式设置).

但是我无法扩展/折叠我的TextView,因为onItemClick不再调用它

这是因为textIsSelectable捕获了所有点击事件......来自Android doc:

当您调用此方法来设置textIsSelectable的值时,它会将可聚焦标记,focusableInTouchMode,clickable和longClickable设置为相同的值.这些标志对应于android:focusable,android:focusableInTouchMode,android:clickable和android:longClickable属性.要将任何这些标志还原到先前设置的状态,请调用以下一种或多种方法:setFocusable(),setFocusableInTouchMode(),setClickable()或setLongClickable().

我尝试将这些标志设置为false,setTextIsSelectable(true)但我没有设法让它工作.

那么,任何想法如何使用textIsSelectable和onItemClick？

PS:仅支持Android> 4.0.

Answer 1

使用下面的代码它将 100% 工作

public class CustomAdapter extends ArrayAdapter<Sample> {

public ArrayList<Sample> mlist;
public Context context;
public LayoutInflater inflater;

public CustomAdapter(Context context, int resource, ArrayList<Sample> mlist) {
    super(context, resource);
    this.mlist = mlist;
    this.context = context;
    inflater = (LayoutInflater) context
            .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}

@Override
public int getPosition(Sample item) {
    return super.getPosition(item);
}

@Override
public Sample getItem(int position) {
    return mlist.get(position);
}

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

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

@Override
public View getView(int position, View convertView, ViewGroup parent) {
    convertView = inflater.inflate(R.layout.listitem, null);
    TextView text1 = (TextView) convertView.findViewById(R.id.item1);
    TextView text2 = (TextView) convertView.findViewById(R.id.item2);
    text1.setText(mlist.get(position).getListitem1());
    text2.setText(mlist.get(position).getListitem2());
    text2.setOnClickListener(new OnClickListener() {
        @Override
        public void onClick(View v) {
            // you just put your Logic here And use this custom adapter to
            // load your Data By using this particular custom adapter to
            // your listview

        }
    });
    return convertView;
}

  }

您只需在 Mainactivity 中使用此代码

mAdapter = new CustomAdapter(this, R.layout.listitem, mListItems);
  mPullRefreshListView = (PullToRefreshListView) findViewById(R.id.pull_refresh_list);
mPullRefreshListView.setAdapter(mAdapter);