在第一个activity (MainActivity)中,我通过 SharedPreferences 保存数据:
Editor editor = mGameSettings.edit();
editor.putString(GAME_PREFERENCES_SHOP, Shops.get(lv.getCheckedItemPosition()));
editor.commit();
当重启程序后,我可以从MainActivity 中读取这个数据:
if (mGameSettings.contains(GAME_PREFERENCES_SHOP))
Tv2.setText(mGameSettings.getString(GAME_PREFERENCES_SHOP, ""));
如何从其它的activity中读取和编辑这个SharedPreferences?