即使在使用单个实例之后仍然排出OutOfMemoryError

我使用Timer进行重复请求。过了一段时间，我得到了OutOfMemoryError。我扩展Application类以获得单个实例。但我仍然得到错误和应用程序崩溃。清除缓存后，它会再次运行。即使在使用单个实例之后仍然排出OutOfMemoryError

我编程清空缓存每隔几秒钟，但是当我这样做时，我得到NegativeArraySizeException。我在做单实例的事情是错的吗？

public ArrayList getCo_ordinates(String deviceId) { 
     String URL_CO_ORDINATES = "http://192.168.1.42:8080/image/getDevicePosition?deviceId=" + deviceId; 
      myApplication.getRequestQueue().start(); 

     final JsonArrayRequest request = new JsonArrayRequest(URL_CO_ORDINATES, new Response.Listener<JSONArray>() { 
      @Override 
      public void onResponse(JSONArray response) { 

       try { 

        for (int i = 0; i < response.length(); i++) { 

         X = response.getJSONObject(i).getString("xCoordinate"); 
         Y = response.getJSONObject(i).getString("yCoodinate"); 
         System.out.println("xCoordinate" + X); 
         System.out.println("yCoodinate" + Y); 
        if(isCoordinateDifferent()) { 
         addTap(Integer.parseInt(X), Integer.parseInt(Y)); 
        }else { 
        } 
        updateNewCoordinates(Integer.parseInt(X),Integer.parseInt(Y)); 
        } 
       } catch (Exception e) { 
        e.printStackTrace(); 
        Toast.makeText(context, "" + e, Toast.LENGTH_SHORT).show(); 
       } 

      } 
     }, new Response.ErrorListener() { 
      @Override 
      public void onErrorResponse(VolleyError volleyError) { 
       Toast.makeText(getApplicationContext(), "Could Not connect to server", Toast.LENGTH_LONG).show(); 

      } 
     }) 
     { 
      @Override 
      protected Map<String, String> getParams() { 
       Map<String, String> params = new HashMap<String, String>(); 
       String deviceID = Build.SERIAL; 
       params.put("Content-Type", "application/json; charset=utf-8"); 

       return params; 
      } 
     }; 
     myApplication.addToRequestQueue(request); 
    return null; 
}

应用程序类：

public class MyApplication extends Application { 
private int cacheClearCount=0; 
private static MyApplication myApplication; 
private int installCount = 0; 
private RequestQueue requestQueue; 
@Override 
public void onCreate() { 
    super.onCreate(); 
    myApplication = this; 
    requestQueue = Volley.newRequestQueue(getApplicationContext()); 
} 

public MyApplication(){ 

} 

public int getCacheClearCount() { 
    return cacheClearCount; 

} 

public RequestQueue getRequestQueue() { 
    return requestQueue; 
} 

public <T> void addToRequestQueue(Request<T> request, String tag) { 
    getRequestQueue().add(request); 
} 

public <T> void addToRequestQueue(Request<T> request) { 
    getRequestQueue().add(request); 
} 

public void cancelPendingRequest(Object tag) { 
    getRequestQueue().cancelAll(tag); 
} 

public void setCacheClearCount(int cacheClearCount) { 
    this.cacheClearCount = cacheClearCount; 
} 

public static MyApplication getInstance() { 
    return myApplication; 
}

来源

2016-04-29 boo

试试这个答案...... http://stackoverflow.com/a/17679457/3678308 –

@ ExceptionLover..the错误发生是因为我发送重复的请求..我认为链接的位图错误 – boo

可能是你是对的...！！！ –

也许是因为你一再创造新String秒。改为使用StringBuffer。

来源

2016-05-02 10:17:06 Abhi

即使在使用单个实例之后仍然排出OutOfMemoryError

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