如何使排球緩存在1分鐘內過期

Question

我遇到了排球緩存問題。有什麼辦法可以在一分鐘後刪除緩存並使其請求新數據？

我的代碼

JsonObjectRequest jsObjRequest = new JsonObjectRequest 
        (Request.Method.GET, url, null, new Response.Listener<JSONObject>() { 

    @Override 
    public void onResponse(JSONObject response) { 
        mTxtDisplay.setText("Response: " + response.toString()); 
    } 
}, new Response.ErrorListener() { 

    @Override 
    public void onErrorResponse(VolleyError error) { 
        // TODO Auto-generated method stub 

    } 
}); 

Answer 1

，你可以這樣做：

JsonObjectRequest jsObjRequest = new JsonObjectRequest 
     (Request.Method.GET, url, null, new Response.Listener<JSONObject>() { 

    @Override 
    public void onResponse(JSONObject response) { 
     mTxtDisplay.setText("Response: " + response.toString()); 
    } 
}, new Response.ErrorListener() { 

    @Override 
    public void onErrorResponse(VolleyError error) { 
     // TODO Auto-generated method stub 

    } 
}){ 
@Override 
    protected Response<JSONObject> parseNetworkResponse(NetworkResponse response) { 
     Response<JSONObject> resp = super.parseNetworkResponse(response); 
     if(!resp.isSuccess()) { 
      return resp; 
     } 
     long now = System.currentTimeMillis(); 
     Cache.Entry entry = resp.cacheEntry; 
     if(entry == null) { 
      entry = new Cache.Entry(); 
      entry.data = response.data; 
      entry.responseHeaders = response.headers; 
     } 
     entry.ttl = now + 60 * 1000; //keeps cache for 1 min 

     return Response.success(resp.result, entry); 
    } 
}; 

這將讓你緩存請求始終只有1分鐘