sharedpreferencesutil_tzztzz01的博客-爱代码爱编程

public class SharedPreferencesUtil {

    private static SharedPreferences preferences;

    //需要初始化，可在application里初始化
    public static void init(Context context) {
        preferences = context.getSharedPreferences("video", Context.MODE_PRIVATE);
    }

    public static void save(String key, String value) {
        preferences.edit()
                .putString(key, value)
                .apply();
    }

    public static String get(String key) {
        return preferences.getString(key, null);
    }
}

需要在清单文件中注册

android:name=".app.App"

/**
 * 自定义application
 */
public class App extends Application {

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

        //初始化
        SharedPreferencesUtil.init(this);
    }
}