多个Activity 共享SharedPreferences

Activity1:

 

SharedPreferences.Editor spf =getSharedPreferences("USERPASS",PreferenceActivity.MODE_WORLD_READABLE).edit(); spf.putString("passWord", newPassWord); spf.commit();

 

Activity2:

 SharedPreferences sp = getSharedPreferences("USERPASS",PreferenceActivity.MODE_PRIVATE); sp.getString("passWord", "123");