如何將數據從後臺線程檢索到aysnctask中的UI線程？

我已經從我的API獲取數據，但我不知道如何將這個獲取的數據分配給我的適配器？如何將數據從後臺線程檢索到aysnctask中的UI線程？

問題：

如何設置取出的數據到陣列上方界定？

如何設置適配器？

公共類FetchLists擴展的AsyncTask <> {

public List<MailChimpList> listTitles = new ArrayList<>(); 

    @Override 
    protected List<MailChimpList> doInBackground(Integer... params) { 
     int count = params[0]; 
     int offset = params[1]; 

     String urlString = "https://us14.api.mailchimp.com/lists?apikey=efb918ee8791215bac4c8a3a8a77-us14" 

     urlString = urlString + "&count=" + count + "&offset=" + offset; 

     try { 
      URL url = new URL(urlString); 
      HttpURLConnection connection = (HttpURLConnection) url.openConnection(); 
      connection.setRequestMethod("GET"); 
      InputStream stream = connection.getInputStream(); 
      BufferedReader reader = new BufferedReader(new InputStreamReader(stream)); 
      String line = reader.readLine(); 
      String response = ""; 
      while (line != null) { 
       response += line; 
       line = reader.readLine(); 
      } 

      JSONObject object = new JSONObject(response); 

      JSONArray lists = object.getJSONArray("lists"); 

      for (int i = 0; i < lists.length(); i++) { 
       JSONObject listData = (JSONObject) lists.get(i); 
       MailChimpList mailChimpList = new MailChimpList(); 
       mailChimpList.id = listData.getString("id"); 
       mailChimpList.title = listData.getString("name"); 

       String id = listData.getString("id"); 
       String title = listData.getString("name"); 

       Log.d("ashutosh","id are: "+id); 
       Log.d("ashutosh","list name are: "+title); 

       listTitles.add(mailChimpList); 
      } 

     } catch (Exception e) { 
      e.printStackTrace(); 
     } 

     return listTitles; 
    } 

@Override 
protected void onPostExecute(List<MailChimpList> mailChimpLists) { 

}

}

來源

2017-02-26 Avada Kedavra

裏面你線程可以使用可運行的，因爲你正在使用異步，你可以在你onPostExecute方法 – Arshad

我知道設置適配器！但是如何？ –

檢查下面的答案 – Arshad

@Override 
protected void onPostExecute(List<MailChimpList> mailChimpLists) { 
    MyCustomAdapter adapter = new MyCustomAdapter(context, mailChimpLists); 
    myListView.setAdapter(adapter); 
}

當你的列表自定義列表，你需要編寫一個客戶適配器

你可以聲明你的ListView作爲全局變量，它可以在post執行中被訪問。

來源

2017-02-26 17:02:33 Arshad

如何將數據從後臺線程檢索到aysnctask中的UI線程？

回答

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