Android ListView內存使用

Question

我不知道問題出在哪裏，因爲我來到了這裏。

指令：

我有一個ListView，我從互聯網獲取的數據。 在URL中，我有一個JSON字符串，但沒有問題。我從URL中免費獲得數據，並且還有一個Image URL，我將它們與Picasso一起加載到帶有其他數據的ListView中。

將問題

我有3點導航。每當用戶按其中一個按鈕時，我從屬於該項目的URL加載信息（example.php？json = 1），所以我不更改頁面，我只是刪除適配器（list.clear）並重新加載數據。

問題

每次當我按下導航同一項目時，存儲器得到更高1MB。

實施例的存儲器使用是80MB和當我按下導航 「例1」 它得到81MB，和當我按下它得到82MB等

代碼

MainActivity.java

private void loadGames(final String title, String pageUrl, final boolean reset) { 
    if(reset) resetGames(); 
    RequestQueue queue = Volley.newRequestQueue(this); 
    StringRequest stringRequest = new StringRequest(Request.Method.GET, pageUrl, new Response.Listener<String>() { 
     @Override 
     public void onResponse(String response) { 

      if(response.length() > 0) { 
       Gson gson = new GsonBuilder().create(); 
       RootObject object = gson.fromJson(response, RootObject.class); 

       for (int i = 0; i < object.result.size(); i++) { 

        ... BLA BLA BLA 

        articles.add(new ArticleItem(object.result.get(i).id, object.result.get(i).title, (int) days, object.result.get(i).value, object.result.get(i).picURL, object.result.get(i).url, object.result.get(i).promoter, object.result.get(i).description, object.result.get(i).participationDate, participated)); 
        listAdapter.notifyDataSetChanged(); 
       } 
       if(reset) YoYo.with(Techniques.BounceInUp).duration(1500).playOn(articleView); 
      } 
     } 
    }, new Response.ErrorListener() { 
     @Override 
     public void onErrorResponse(VolleyError error) { 

     } 
    }); 
    queue.add(stringRequest); 
    actionBar.setPageTitle(title); 
} 

編輯

ArticleAdapter.java

public class ArticleAdapter extends ArrayAdapter<ArticleItem> { 

    private LayoutInflater inflater; 
    private List<ArticleItem> articles; 

    public ArticleAdapter(Context context, List<ArticleItem> articles) { 
     super(context, 0, articles); 
     inflater = LayoutInflater.from(getContext()); 
     this.articles = articles; 
    } 

    @Override 
    public View getView(final int position, View convertView, ViewGroup parent) { 

     View view; 
     if(convertView == null) { 
      view = inflater.inflate(R.layout.article_layout, null); 
     } else { 
      view = convertView; 
     } 

     TextView title = (TextView) view.findViewById(R.id.title); 
     title.setText(articles.get(position).getTitle()); 

     TextView days = (TextView) view.findViewById(R.id.days); 

     TextView desc = (TextView) view.findViewById(R.id.desc); 
     desc.setText("Promoter: " + articles.get(position).getPromoter()); 

     Picasso.with(getContext()).load(R.drawable.ablaufzeit_weiss).into((ImageView)view.findViewById(R.id.letzte_chance_icon)); 
     Picasso.with(getContext()).load(R.drawable.gesamtwert_weiss).into((ImageView)view.findViewById(R.id.geld_icon)); 

     int amount = articles.get(position).getDays(); 
     String tage = (amount > 1) ? "Days" : "Day"; 
     days.setText("In " + amount + " " + tage); 
     if(amount == 0) 
      days.setText("Ends today"); 
     else if(amount < 0) 
      days.setText("End"); 

     TextView worth = (TextView) view.findViewById(R.id.worth); 
     worth.setText(articles.get(position).getWorth() + " €"); 

     ImageView image = (ImageView) view.findViewById(R.id.image); 
     Picasso.with(getContext()).load(articles.get(position).getImgUrl()).placeholder(R.drawable.placeholder).into(image); 

     ViewGroup articleInfo = (ViewGroup) view.findViewById(R.id.article_info); 
     articleInfo.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View v) { 
       AlertDialog.Builder builder = new AlertDialog.Builder(getContext()); 
       builder.setTitle(Html.fromHtml("<font color='black'>" + articles.get(position).getTitle() + "</font>")); 
       builder.setMessage(articles.get(position).getDesc()) 
         .setPositiveButton(R.string.ok, new DialogInterface.OnClickListener() { 
          public void onClick(DialogInterface dialog, int id) { 

          } 
         }); 
       builder.create().show(); 
      } 
     }); 

     if(articles.get(position).isParticipated()) { 
      view.findViewById(R.id.participated).setVisibility(View.VISIBLE); 
      TextView participatedText = (TextView) view.findViewById(R.id.participated_text); 
      participatedText.setTypeface(FontCache.get("Action_Man.ttf", getContext())); 
      participatedText.setText("Participated\nam " + articles.get(position).getParticipationDate()); 
     } else { 
      view.findViewById(R.id.participated).setVisibility(View.GONE); 
     } 
     return view; 
    } 
} 

resetGames（）

private void resetGames() { 
    articles.clear(); 
    listAdapter.notifyDataSetChanged(); 
} 

Answer 1

你應該有應用

每次調用loadGames（一次一個quene）創建新實例

RequestQueue queue = Volley.newRequestQueue(this); 

Cr eate Quene經理

public class QueueManager { 

private static final String TAG = QueueManager.class.getName(); 
private static QueueManager queueManager; 
private Context ctx; 
private RequestQueue requestQueue; 

private QueueManager(Context context) { 
    ctx = context.getApplicationContext(); 
    requestQueue = Volley.newRequestQueue(ctx); 
    HttpsURLConnection.setDefaultHostnameVerifier(new HostnameVerifier() { 

     @Override 
     public boolean verify(String hostname, SSLSession session) { 

      return true; 
     } 
    }); 
} 

public static synchronized QueueManager getInstance(Context context) { 
    if (queueManager == null) { 
     queueManager = new QueueManager(context); 
    } 
    return queueManager; 
} 

public RequestQueue getRequestQueue() { 
    return requestQueue; 
} 

的活動，你可以訪問

quene = QueueManager.getInstance(this).getRequestQueue();