我的TextView
中有一个ArrayAdapter
,可能包含一些超链接。对于这些链接,我使用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;
}
但是因为在ArrayAdapter中添加了Linkify
,我得到一个例外说明:
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)
我该如何使这项工作?我无法想到另一种选择。
答案 0 :(得分:5)
查看日志中的异常,您似乎在分配ArrayAdapter
时使用了应用程序上下文。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Activity
实例进行初始化:
Context context = this;
或者,如果您的代码位于Fragment
:
Context context = getActivity();
答案 1 :(得分:0)
如果您有兴趣打开链接,可以使用
String text = "<a href=\"http://www.google.co.in/\">Google</a>";
holder.content.setText(Html.fromHtml(text));
holder.content.setMovementMethod(LinkMovementMethod.getInstance());
这可以在ListView中正常工作。
答案 2 :(得分:0)
在使用适配器
绑定列表时,在Activity.Java中YourAdapter yourAdapter = new YourAdapter(YourCurrentActivityName.this, YourArrayList);
yourListView.setAdapter(yourAdapter);
在构造函数中的YourAdapter.java中,确保它的活动不是上下文
public YourAdapter(Activity context, YourArrayList list){
this.context = context;
this.list = list;
}
并且,在适配器中使用此代码作为Linkify的textview。
holder.yourTextView.setLinksClickable(true);
holder.yourTextView.setMovementMethod(LinkMovementMethod.getInstance());
Linkify.addLinks(holder.yourTextView, Linkify.ALL);
holder.yourTextView.setAutoLinkMask(Linkify.ALL);