parse json data with gson on android

Question

My model looks like this:

public class DefaultModel<T> {
    public int Status;
    public T JSON;
    public String ErrorMessage;
    public String InfoMessage;
}

The json font style

{"ErrorMessage":"null","InfoMessage":"null","JSON":
[{"DictId":"1","ItemCode":"1","ItemName":"sINGLE","SortNum":0,"
isChecked":true},{"ItemName":"WenJackp","SortNum":0,"isChecked":false}]
,"Status":100}

I want parse this json, but gson throws exception

com.google.gson.internal.LinkedTreeMap cannot be cast to xxxxx.DictItem

How to parse ?

---

add more details, I use this method parse json data:

• create ParameterizedType and you see buildType method

  ParameterizedType mType = buildType(DefaultModel.class, ArrayList.class, DictItem.class);
  

• parse json data

  DefaultModel<List<DictItem>> mResult = mGson.fromJson(json, mType);
  

• create new ParameterizedType

  protected ParameterizedType buildType(final Class raw, final Type... args) {
      return new ParameterizedType() {
          public Type getRawType() {
              return raw;
          }
  
          public Type[] getActualTypeArguments() {
              return args;
          }
  
          public Type getOwnerType() {
              return null;
          }
      };
  }
  

The above is when I deal with JSON parsing method used by the, I want use Default<List<DictItem>> this type , T == List<DictItem>

Answer 1

For type 'T' use

List<InnerClass> json;

Then you can put an inner class into your DefaultModel that would have

String dictId;
String itemCode;
String itemName;
String sortNum;
boolean isChecked;

On a side note these variables should be marked private and accessed via a getter. You can also have different variable names if you wish by annotating them with @SerializedName

eg

@SerializedName("ErrorMessage")
private String myErrowMsg;