如何在Android中解析此嵌套的JSON數組和JSON對象View_ID

Question

如何獲取"View_ID":"v1"和View數組。
我創建的內容無法產生正確的響應。 我做錯了什么事？

這是我得到的答復：

{"success":true,"total":2,"View_ID":"v1","View":[{"id":"1","Button_ID":"acc123_b1","Publish_Topic":"\/ziniks\/acc123\/sw1","Subscribe_Topic":"\/ziniks\/acc123\/sw1_status"},{"id":"2","Button_ID":"acc123_b2","Publish_Topic":"\/ziniks\/acc123\/sw2","Subscribe_Topic":"\/ziniks\/acc123\/sw2_status"}]}

我創建以獲得響應的內容：

JSONObject mainObj = new JSONObject(response);
if(mainObj != null){
    JSONArray list = mainObj.getJSONArray("View");
    if(list != null){
        for(int j = 0; j < list.length();j++){
            JSONObject innerElem = list.getJSONObject(j);
            if(innerElem != null){
                String button_id = innerElem.getString("Button_ID");
                Toast.makeText(QRCode.this, button_id, Toast.LENGTH_SHORT).show();
            }
        }
    }
}

Answer 1

    Try bellow.


JSONObject mainObj = new JSONObject(response); if(mainObj != null){
    String viewid = mainObj.getString("View_ID");  // here is your View_ID.
     JSONArray list = mainObj.getJSONArray("View");  // here is your view array.

    if(list != null){ for(int j = 0; j < list.length();j++){ JSONObject innerElem = list.getJSONObject(j); if(innerElem != null){ String button_id = innerElem.getString("Button_ID"); Toast.makeText(QRCode.this, button_id, Toast.LENGTH_SHORT).show(); } } } }