java-MainActivity中的setListAdapter

MainActivity中的setListAdapter

嘿，MainActivity中onPostExecute(string result)方法爆出了一個錯誤：

"The method setListAdapter(CustomAdapter) is undefined for the type MainActivity.getTweets"

MainActivity.java

public class Main Activity extends Activity {
    ArrayList<TweetDetailClass> tweets = new ArrayList<TweetDetailClass>();

    protected void onCreate(Bundle savedInstanceState) { .. }

    public boolean onCreateOptionsMenu(Menu menu) { .. }

    public void searchTwitter(View view){
        ...
        new GetTweets().execute(searchURL);
    }

    public class GetTweets extends AsyncTask<String, Void, String>{
        protected String doInBackground(String... twitterURL){ .. }
        protected void onPostExecute(String result) {
             setListAdapter(new CustomAdapter(MainActivity.this, R.layout.listview, tweets));
        }
    }  
}

CustomAdapter Constructor 中的代碼如下：

CustomAdapter(Context c, int textView, ArrayList<TweetDetailClass> data){
    //_data = data;
    //_c = c;
    super(c, textView, data);
    this._data = data;
}

最佳回答：

setListAdapter()只有在Activity 繼承ListActivity時才能用。你的xml布局文件肯定包含ListView 對象，id是 "@android:id/list"。

如果滿足繼承條件的話，可以這樣

yourListView.setAdapter(new CustomAdapter(MainActivity.this, R.layout.listview, tweets));