在ListView的ArrayAdapter中使用Linkify会导致RuntimeException

Question

我有一个TextView在我ArrayAdapter可能包含一些超链接.对于我使用的那些链接Linkify:

public View getView(int position, View convertView, ViewGroup parent) {
    View rowView = convertView;
    if (rowView == null) {
        rowView = inflater.inflate(R.layout.list_item_2, null);
        holder = new ViewHolder();

        holder.content = (TextView) rowView.findViewById(R.id.postContent);
        holder.date = (TextView) rowView.findViewById(R.id.postDate);

        rowView.setTag(holder);
    } else {
        holder = (ViewHolder) rowView.getTag();
    }

    holder.content.setText(contents.get(position));
    holder.date.setText(dates.get(position));

    Linkify.addLinks(holder.content, Linkify.ALL);

    return rowView;
}

但是因为Linkify在ArrayAdapter中添加了,我得到一个例外说:

08-05 16:42:16.715: E/AndroidRuntime(20598): FATAL EXCEPTION: main
08-05 16:42:16.715: E/AndroidRuntime(20598): android.util.AndroidRuntimeException: Calling startActivity() from outside of an Activity  context requires the FLAG_ACTIVITY_NEW_TASK flag. Is this really what you want?
08-05 16:42:16.715: E/AndroidRuntime(20598):    at android.app.ContextImpl.startActivity(ContextImpl.java:921)
08-05 16:42:16.715: E/AndroidRuntime(20598):    at android.content.ContextWrapper.startActivity(ContextWrapper.java:283)
08-05 16:42:16.715: E/AndroidRuntime(20598):    at android.text.style.URLSpan.onClick(URLSpan.java:62)

我怎样才能做到这一点？我想不出另类.

Answer 1

查看日志中的异常,您似乎在分配时使用了应用程序上下文ArrayAdapter.例如,如果您的代码与以下内容类似:

    listView.setAdapter(new ArrayAdapter<String>(context,
            android.R.layout.simple_list_item_1,
            data) {
        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            // ...
        }
    });

您必须使用应用程序上下文初始化上面的上下文变量,如下所示:

    Context context = getApplicationContext();

为避免错误,您应该使用您的Activity实例初始化它:

    Context context = this;

或者,如果您的代码位于Fragment:

    Context context = getActivity();