[Android] 안드로이드 - Shared Preference 에 JSON 데이터 저장하는 방법

https://stackoverflow.com/questions/41442396/android-json-shared-preference/41442831

 

1. jsonObject 를 String 으로 변환한다

String yourString =  jsonObject.toString();

 

2. Shared Preference 에 String 으로 변환한 jsonObject 를 저장한다

SharedPreferences.Editor editor = getSharedPreferences(MY_PREFS_NAME, MODE_PRIVATE).edit();
 editor.putString("YOURKEY",yourString  );
 editor.commit();

 

3. 저장한 String 을 꺼내온다.

SharedPreferences prefs = getSharedPreferences(MY_PREFS_NAME, MODE_PRIVATE); 
    String name = prefs.getString("YOURKEY", null);//If there is no YOURKEY found null will be the default value.
  }

 

String strJson = sharedPref.getString("jsondata","0");//second parameter is necessary ie.,Value to return if this preference does not exist. 

if (strJson != null) {
           try {
               JSONObject response = new JSONObject(strJson);

         } catch (JSONException e) {

         }
  }