Android SharedPreferences工具类

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/** * Created by Sunday on 2016/3/17. */public class SPUtil {    public static final String SP_NAME = "sunday_sp";    /**     * 用于文本信息的存储     */    SharedPreferences preferences;    /**     * 无参构造方法     */    public SPUtil() {    }    /**     * 带1个参的构造方法,spName默认     */    public SPUtil(Context context) {        preferences = context.getSharedPreferences(SP_NAME,                Context.MODE_PRIVATE);    }    /**     * 带2个参的构造方法，自定义spName     */    public SPUtil(Context context, String spName) {        preferences = context.getSharedPreferences(spName, Context.MODE_PRIVATE);    }    /**     * 保存String     *     * @param key     * @param value     */    public void save(String key, String value) {        SharedPreferences.Editor editor = preferences.edit();        editor.putString(key, value);        editor.commit();    }    /**     * 保存int     *     * @param key     * @param value     */    public void save(String key, int value) {        SharedPreferences.Editor editor = preferences.edit();        editor.putInt(key, value);        editor.commit();    }    /**     * 保存boolean     *     * @param key     * @param value     */    public void save(String key, boolean value) {        SharedPreferences.Editor editor = preferences.edit();        editor.putBoolean(key, value);        editor.commit();    }    /**     * 获取String     *     * @param key     * @param defValue     * @return     */    public String getString(String key, String defValue) {        return preferences.getString(key, defValue);    }    /**     * 获取int     *     * @param key     * @param defValue     * @return     */    public int getInt(String key, int defValue) {        return preferences.getInt(key, defValue);    }    /**     * 获取boolean     *     * @param key     * @param defValue     * @return     */    public boolean getBoolean(String key, boolean defValue) {        return preferences.getBoolean(key, defValue);    }}
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