我有一个网络浏览器应用程序。AutoCompleteTextView 充当 Url 文本框，并在应用程序启动时获取列表（光标类型）。下面的代码运行良好，但我不知道使用 AsyncTask 是否正确。
那么，AutoCompleteTextView 会在应用程序启动时冻结吗？我通过 Eclipse 线程监视器监控线程，AsyncTask#1 线程在完成后保持等待状态。那么我该如何关闭线程？？？
代码：
public class BrowserActivity extends StandOutWindow {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//Build the layout
LayoutInflater inflater = (LayoutInflater) getSystemService(LAYOUT_INFLATER_SERVICE);
View v = inflater.inflate(R.layout.activity_browser, frame, true);
AutoCompleteTextView txtUrl = (AutoCompleteTextView) v.findViewById(R.id.txtUrl);
//Run the async task
BrowserDataTask bdTask = new BrowserDataTask();
bdTask.execute(txtUrl);
}
//A method belong to BrowserActivity class and reusable.
public Cursor getBrowserData() {
String[] projection = new String[] { "_id", Browser.BookmarkColumns.TITLE,
Browser.BookmarkColumns.URL };
Cursor mCur = getContentResolver().query(android.provider.Browser.BOOKMARKS_URI,
projection, null, null, null);
return mCur;
}
//Sub Class of BrowserActivity
private class BrowserDataTask extends AsyncTask<AutoCompleteTextView, Integer, Cursor>
{
private AutoCompleteTextView m_acText;
@Override
protected Cursor doInBackground(AutoCompleteTextView...params) {
m_acText = params[0];
return getBrowserData();
}
@Override
protected void onProgressUpdate(Integer... progress) {
super.onProgressUpdate(progress);
}
@Override
protected void onPostExecute(Cursor result) {
//UrlAdapter, custome Cursor Adapter from other class.
UrlAdapter adapter = new UrlAdapter(BrowserActivity.this, result);
m_acText.setAdapter(adapter);
}
}
}