我的排序列表視圖的意圖將無法正常工作

-1

我有一個json數組，我使用for循環來循環每個對象以獲取作者姓名。如果作者姓名與我輸入的作者姓名相同，則該姓名將添加到數組列表中。然後使用陣列適配器調整此數組列表。我的排序列表視圖的意圖將無法正常工作

但這裏是我的問題 - 我正在使用此方法來搜索json數組以查找匹配項。

private void updateListView() { 
    ArrayList<String> arrayList = new ArrayList<String>(); 

    try { 
     JSONArray jsonArray = mBlogData.getJSONArray("posts"); 


     for (int i = 0 ; i <jsonArray.length() ; i++) { 
      JSONObject post = jsonArray.getJSONObject(i); 
      String stringPost = post.getString(KEY_AUTHOR); 
      Log.v(TAG , stringPost); 
      if (stringPost.equals("Guil Hernandez")) { 
       arrayList.add(stringPost); 
      } else { 
       Log.v(TAG , "no match " + stringPost); 
      } 
     } 

     ArrayAdapter<String> adapter = new ArrayAdapter<String>(MyActivity.this , android.R.layout.simple_list_item_1, 
       arrayList); 
     setListAdapter(adapter);

所以現在我有我的過濾數據....我想爲每個結果做一個意圖。所以我這樣做

@Override 
protected void onListItemClick(ListView l, View v, int position, long id) { 
    super.onListItemClick(l, v, position, id); 

    JSONArray jsonArrayy = null; 

    try { 
     jsonArrayy = mBlogData.getJSONArray("posts"); 
     JSONObject jPost = jsonArrayy.getJSONObject(position); 
     String url = jPost.getString("url"); 

     Intent intent = new Intent(Intent.ACTION_VIEW); 
     intent.setData(Uri.parse(url)); 
     startActivity(intent); 

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

但因爲數據被過濾掉....它打開了錯誤的網址！我不知道如何設置我的意圖，所以它會得到過濾數據的網址...請幫助。如果這是令人困惑的完整代碼和JSON數據將在下面列出，並隨時問我任何問題！謝謝。

public class MyActivity extends ListActivity { 

public final static String TAG = MyActivity.class.getSimpleName(); 



protected JSONObject mBlogData; 

private final String KEY_AUTHOR = "author"; 
private final String KEY_TITLE = "title"; 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_my); 

    if (networkIsAvailable()) { 
     GetNameData getNameData = new GetNameData(); 
     getNameData.execute(); 
    } 
} 

@Override 
protected void onListItemClick(ListView l, View v, int position, long id) { 
    super.onListItemClick(l, v, position, id); 

    JSONArray jsonArrayy = null; 

    try { 
     jsonArrayy = mBlogData.getJSONArray("posts"); 
     JSONObject jPost = jsonArrayy.getJSONObject(position); 
     String url = jPost.getString("url"); 

     Intent intent = new Intent(Intent.ACTION_VIEW); 
     intent.setData(Uri.parse(url)); 
     startActivity(intent); 

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

private boolean networkIsAvailable() { 
    boolean isOn = false; 
    ConnectivityManager manager = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE); 
    NetworkInfo networkInfo = manager.getActiveNetworkInfo(); 
    if (networkInfo != null && networkInfo.isConnected()) { 
     isOn = true; 
    } 
    return isOn; 
} 

private void updateListView() { 
    ArrayList<String> arrayList = new ArrayList<String>(); 

    try { 
     JSONArray jsonArray = mBlogData.getJSONArray("posts"); 


     for (int i = 0 ; i <jsonArray.length() ; i++) { 
      JSONObject post = jsonArray.getJSONObject(i); 
      String stringPost = post.getString(KEY_AUTHOR); 
      Log.v(TAG , stringPost); 
      if (stringPost.equals("Guil Hernandez")) { 
       arrayList.add(stringPost); 
      } else { 
       Log.v(TAG , "no match " + stringPost); 
      } 
     } 

     ArrayAdapter<String> adapter = new ArrayAdapter<String>(MyActivity.this , android.R.layout.simple_list_item_1, 
       arrayList); 
     setListAdapter(adapter); 



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

} 

private class GetNameData extends AsyncTask< Object , Void , JSONObject> { 

    @Override 
    protected JSONObject doInBackground(Object... objects) { 

     int responseCode = -1; 

     JSONObject jsonResponse = null; 

     try { 
      URL bloFeedUrl = new URL("http://blog.teamtreehouse.com/api/get_recent_summary/?count=20"); 
      HttpURLConnection connection = (HttpURLConnection) bloFeedUrl.openConnection(); 
      connection.connect(); 

      responseCode = connection.getResponseCode(); 

      if (responseCode == 200) { 
       InputStream inputStream = connection.getInputStream(); 
       StringBuilder builder = new StringBuilder(); 
       byte[] array = new byte[8092]; 
       int read = 0; 

       while ((read = inputStream.read(array)) != -1) { 
        builder.append(new String(array, 0, read)); 
       } 

       jsonResponse = new JSONObject(builder.toString()); 
      } 

     } catch (MalformedURLException e) { 
      e.printStackTrace(); 
     } catch (IOException e) { 
      e.printStackTrace(); 
     } catch (JSONException e) { 
      e.printStackTrace(); 
     } 
     return jsonResponse; 
    } 

    @Override 
    protected void onPostExecute(JSONObject jsonObject) { 
     mBlogData = jsonObject; 
     updateListView(); 
     } 
    } 
}

JSON

{ 
status: "ok", 
count: 20, 
count_total: 1949, 
pages: 98, 
posts: [ 
{ 
id: 24680, 
url: "http://blog.teamtreehouse.com/create-sticky-navigation", 
title: "How to Create a Sticky Navigation", 
date: "2015-02-05 14:44:13", 
author: "Guil Hernandez", 
thumbnail: "http://blog.teamtreehouse.com/wp-content/uploads/2015/01/sticky-150x150.jpg" 
},

ECT ......

來源

2015-02-09 Evan Dix

您可以創建另一個列表並保存你想要的網址，你arrayList怎麼做。然後在列表項點擊做到這一點：

@Override 
protected void onListItemClick(ListView l, View v, int position, long id) { 
    super.onListItemClick(l, v, position, id); 

     String url = urlsList.get(position); // your new urls list 

     Intent intent = new Intent(Intent.ACTION_VIEW); 
     intent.setData(Uri.parse(url)); 
     startActivity(intent); 
}

來源

2015-02-09 22:31:47 kelvincer

在ListView的順序是不是你正在使用的陣列中的一樣，因爲你過濾數據，這樣你就可以保持網址後，它如果你使用對象會更好。

來源

2015-02-09 22:36:22

這是我想出的解決方案。這是嚴重的馬虎。請告訴我，如果你有更好的主意/建議

@Override 
protected void onListItemClick(ListView l, View v, int position, long id) { 
    super.onListItemClick(l, v, position, id); 

    JSONArray jsonArrayy = null; 
    ArrayList<String> urlList = new ArrayList<String>(); 

    try { 
     jsonArrayy = mBlogData.getJSONArray("posts"); 

     for (int i = 0 ; i < jsonArrayy.length() ; i++) { 
      JSONObject post = jsonArrayy.getJSONObject(i); 
      String stringPost = post.getString(KEY_AUTHOR); 
      String url = post.getString("url"); 
      Log.v(TAG , stringPost); 
      if (stringPost.equals(mName)) { 

       urlList.add(url); 
      } else { 
       Log.v(TAG , "no match " + stringPost); 
      } 

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

    String urlTwo = urlList.get(position); 



    // try { 
    // jsonArrayy = mBlogData.getJSONArray("posts"); 
     // JSONObject jPost = jsonArrayy.getJSONObject(position); 
     // String url = jPost.getString("url"); 

     Intent intent = new Intent(Intent.ACTION_VIEW); 
     intent.setData(Uri.parse(urlTwo)); 
     startActivity(intent); 


}

來源

2015-02-09 22:53:08

我的排序列表視圖的意圖將無法正常工作

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