SharedPreferences的问题

Question

恢复代码：

final SharedPreferences settings = getSharedPreferences("pref", 0);
        settings.getString("user", "");
        settings.getString("pw", "");

商店代码：

SharedPreferences.Editor editor = settings.edit();
                      editor.putString("user", etuser.getText().toString());
                      editor.putString("pw", etpw.getText().toString());
                      editor.commit();

此代码不起作用，不会发生错误

Answer 1

    String s1 = settings.getString("user", "");
    String s2 = settings.getString("pw", "");

我的观点是 - 您返回了所需的字符串，但您没有将其值分配给任何内容。

Answer 2

editor.putString("user", etuser.getText().toString());

editor.putString("pw", etpw.getText().toString());

正如旁注，您不需要toString()。