在Android中使用相同字段名稱的JSONArray解析和值映射

我有一個JSONArray，我可以解析，但由於數組的結構，我無法映射從具有相同名稱的字段中提取的值。而不是for循環分配一個接一個的值，分配查看字段名稱的最後一個實例。所以來自第二個JSONObject的值被分配兩次。在Android中使用相同字段名稱的JSONArray解析和值映射

"Group": [ 
    { 
     "-Type": "Mouldings", 
     "CurTier": "BRZ", 
     "NxtTier": "SIL", 
     "CurTierFrom": "$4,000", 
     "CurTierTo": "$9,999", 
     "NxtTierFrom": "$10,000", 
     "NxtTierTo": "$14,999", 
     "CurSales": "$2,107", 
     "ReqSales": "$7,893" 
    }, 
    { 
     "-Type": "Accessories", 
     "CurTier": "BAS", 
     "NxtTier": "GLD", 
     "CurTierFrom": "$0", 
     "CurTierTo": "$1,499", 
     "NxtTierFrom": "$1,500", 
     "NxtTierTo": "$4,999", 
     "CurSales": "$693", 
     "ReqSales": "$807" 
    } 
    ]

代碼：

try { 
       JSONObject reader = new JSONObject(JSON_DATA); 

       JSONObject PricingTier = reader.getJSONObject("PricingTier"); 

       JSONArray Group = PricingTier.getJSONArray("Group"); 

       for (int i = 0; i < Group.length(); i++) { 
        JSONObject g = Group.getJSONObject(i); 


        final String Type = g.getString("@Type"); 
        final String CurTier = g.getString("CurTier"); 
        final String NxtTier = g.getString("NxtTier"); 
        final String CurTierFrom = g.getString("CurTierFrom"); 
        final String CurTierTo = g.getString("CurTierTo"); 
        final String NxtTierFrom = g.getString("NxtTierFrom"); 
        final String NxtTierTo = g.getString("NxtTierTo"); 
        final String CurSales = g.getString("CurSales"); 
        final String ReqSales = g.getString("ReqSales"); 
        final String TypeA = g.getString("@Type"); 
        final String CurTierA = g.getString("CurTier"); 
        final String NxtTierA = g.getString("NxtTier"); 
        final String CurTierFromA = g.getString("CurTierFrom"); 
        final String CurTierToA = g.getString("CurTierTo"); 
        final String NxtTierFromA = g.getString("NxtTierFrom"); 
        final String NxtTierToA = g.getString("NxtTierTo"); 
        final String CurSalesA = g.getString("CurSales"); 
        final String ReqSalesA = g.getString("ReqSales"); 

        fragment.getActivity().runOnUiThread(new Runnable() { 
         @Override 
         public void run() { 

          tvType.setText(Type); 
          tvCurTier.setText(CurTier); 
          tvNxtTier.setText(NxtTier); 
          tvCurTierFrom.setText(CurTierFrom); 
          tvCurTierTo.setText(CurTierTo); 
          tvNxtTierFrom.setText(NxtTierFrom); 
          tvNxtTierTo.setText(NxtTierTo); 
          tvCurSales.setText(CurSales); 
          tvReqSales.setText(ReqSales); 
          tvTypeA.setText(TypeA); 
          tvCurTierA.setText(CurTierA); 
          tvNxtTierA.setText(NxtTierA); 
          tvCurTierFromA.setText(CurTierFromA); 
          tvCurTierToA.setText(CurTierToA); 
          tvNxtTierFromA.setText(NxtTierFromA); 
          tvNxtTierToA.setText(NxtTierToA); 
          tvCurSalesA.setText(CurSalesA); 
          tvReqSalesA.setText(ReqSalesA); 
         } 
        }); 
       }

結果：

"-Type": "Accessories", 
    "CurTier": "BAS", 
    "NxtTier": "GLD", 
    "CurTierFrom": "$0", 
    "CurTierTo": "$1,499", 
    "NxtTierFrom": "$1,500", 
    "NxtTierTo": "$4,999", 
    "CurSales": "$693", 
    "ReqSales": "$807" 
"-Type": "Accessories", 
    "CurTier": "BAS", 
    "NxtTier": "GLD", 
    "CurTierFrom": "$0", 
    "CurTierTo": "$1,499", 
    "NxtTierFrom": "$1,500", 
    "NxtTierTo": "$4,999", 
    "CurSales": "$693", 
    "ReqSales": "$807"

來源

2017-04-26 Garrett Marschke

你越來越陣列（I = 0），並在所有的18個變量寫入則取值1和覆蓋此相同的18個變量。

你必須將這些變量從循環中分離出來。例如：當Group.getObj（i = 0）。

final String Type = g.getString("@Type");

，然後當Group.getObj（I = 1）：

final String TypeA = g.getString("@Type");

來源

2017-04-26 17:03:00 antoniosj

當我嘗試這一點，我fragment.getActivity線程不能訪問收到的字符串。有沒有辦法來解決這個問題？ –

啊謝謝你！我簡單地把runOnUiThread放在（if == 0）和（if == 1）裏面，它工作正常。 –

創建getter和setter您JSONArray鍵的一類。使用for循環讀取值，請參閱代碼。

  for (int i = 0; i < Group.length(); i++) { 
       JSONObject g = Group.getJSONObject(i); 
       Actors actors = new Actors(); 
       actors.setType(g.getString("@Type")); 
       ......//your remaining code 
       arrayList.add(actors); 
      } 
     }

參與者是類名稱。使用適配器類在ListView中顯示列表。

public class yourAdapter extends ArrayAdapter<Actors> { 

LayoutInflater vi; 
ViewHolder holder; 
int resource; 
private final Activity context; 
private final ArrayList<Actors> details; 

public WifiAdapter(Activity context, int resource , ArrayList<Actors> details) { 
    super(context, resource, details); 
    vi = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
    this.context = context; 
    this.resource = resource; 
    this.details = details; 
} 

@Override 
public View getView(int position, View convertView, ViewGroup parent) { 
    View v = convertView; 
    if(v == null){ 
     holder = new ViewHolder(); 
     v = vi.inflate(resource, null); 
     holder.Type = (TextView) v.findViewById(R.id.type); 
     .......//your remaining code 
     v.setTag(holder); 
    } 
    else { 
     holder =(ViewHolder) v.getTag(); 
    } 


    holder.Name.setText(details.get(position).getType()); 
    ..........//ur remaining code 


    return v; 
} 

static class ViewHolder { 
    public TextView Type; 
    //your remaing code 
}

}

來源

2017-04-26 16:57:08

在Android中使用相同字段名稱的JSONArray解析和值映射

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