我試圖在後臺運行函數doTask()時崩潰。我正在嘗試使用新線程(new Runnable(){}),它僅適用於此部分: handlerForBar.post(new Runnable(){public void run(){doTask();}}) 但progressBar出現時doTask()的工作已完成。所以我認爲AsyncTask可以工作,但它崩潰了。 *的.java的AsyncTask在doInBackground中崩潰,添加到列表視圖
public void doTask()
{
ListView listView = (ListView)findViewById(R.id.list);
myArray = new ArrayList<HashMap<String,Object>>();
HashMap<String, Object> hash_map;
hash_map = new HashMap<String, Object>();
hash_map.put(NICK_KEY, "nick");
myArray.add(hash_map);
listView.setAdapter(new myListAdapter(myArray,this));
new myListAdapter(myArray,this).notifyDataSetChanged();
}
private class myThread extends AsyncTask<String, Void, String> {
@Override
protected String doInBackground(String... params) {
doTask(); //try, catch also FC
return null;
}
...
}
結構:
> public class mainActivity extends Activity{}
> public void onCreate()
> new myThread().execute("");
> public void doTask()
> private class myThread extends AsyncTask<String, Void, String>{}
> protected String doInBackground()
> doTask()
> private class myListView extends BaseAdapter