Initialise here..
 SharedPreferences msharedpref = getSharedPreferences("msh",
                    MODE_PRIVATE);
            Editor editor = msharedpref.edit();

store data...
editor.putString("id",uida); //uida is your string to be stored
editor.commit();
finish();


fetch...
SharedPreferences prefs = this.getSharedPreferences("msh", Context.MODE_PRIVATE);
        uida = prefs.getString("id", "");

创建SharedPreference和全局使用的最佳方法，你需要创建一个类，如下所示:

public class PreferenceHelperDemo {
    private final SharedPreferences mPrefs;

    public PreferenceHelperDemo(Context context) {
        mPrefs = PreferenceManager.getDefaultSharedPreferences(context);
    }

    private String PREF_Key= "Key";

    public String getKey() {
        String str = mPrefs.getString(PREF_Key, "");
        return str;
    }

    public void setKey(String pREF_Key) {
        Editor mEditor = mPrefs.edit();
        mEditor.putString(PREF_Key, pREF_Key);
        mEditor.apply();
    }

}

Initialise here..
 SharedPreferences msharedpref = getSharedPreferences("msh",
                    MODE_PRIVATE);
            Editor editor = msharedpref.edit();

store data...
editor.putString("id",uida); //uida is your string to be stored
editor.commit();
finish();


fetch...
SharedPreferences prefs = this.getSharedPreferences("msh", Context.MODE_PRIVATE);
        uida = prefs.getString("id", "");

您可以创建自定义的SharedPreference类

public class YourPreference {   
    private static YourPreference yourPreference;
    private SharedPreferences sharedPreferences;

    public static YourPreference getInstance(Context context) {
        if (yourPreference == null) {
            yourPreference = new YourPreference(context);
        }
        return yourPreference;
    }

    private YourPreference(Context context) {
        sharedPreferences = context.getSharedPreferences("YourCustomNamedPreference",Context.MODE_PRIVATE);
    }

    public void saveData(String key,String value) {
        SharedPreferences.Editor prefsEditor = sharedPreferences.edit();
        prefsEditor .putString(key, value);
        prefsEditor.commit();           
    }

    public String getData(String key) {
        if (sharedPreferences!= null) {
           return sharedPreferences.getString(key, "");
        }
        return "";         
    }
}

你可以像这样获得你的偏好实例:

YourPreference yourPrefrence = YourPreference.getInstance(context);
yourPreference.saveData(YOUR_KEY,YOUR_VALUE);

String value = yourPreference.getData(YOUR_KEY);

共享偏好是如此容易学习，所以看看这个 关于共享偏好的简单教程

import android.os.Bundle;
import android.preference.PreferenceActivity;

    public class UserSettingActivity extends PreferenceActivity {

    @Override
    public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

      addPreferencesFromResource(R.xml.settings);

    }
}

您还可以看看我过去为这个目的编写的示例项目。我在本地保存一个名称，并在用户请求或应用程序启动时检索它。

但是，此时最好使用commit(而不是apply)来持久化数据。更多信息请点击这里。