디바이스내 간단한 데이터 저장 SharedPreferences

//android.content.SharedPreferences

값 저장

SharedPreferences pref;

SharedPreferences.Editor editor = pref.edit();

pref = getSharedPreferences("저장소이름", Activity.MODE_PRIVATE);

editor.putString("key", "value");

editor.commit();

값 읽기

SharedPreferences pref;

pref = getSharedPreferences("저장소이름", Activity.MODE_PRIVATE);

String key= pref.getString("key", "디폴트값"); //"저장소이름"에 "key"가 없을경우 "디폴트값" 리턴