SharedPreferences工具类

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SPUtils

SharedPreferences工具类

链接android常用工具类文章http://www.jianshu.com/p/72494773aace

    private static final String CONFIG = "config";    /**     * 获取SharedPreferences实例对象     *     * @param fileName     */    private static SharedPreferences getSharedPreference(String fileName) {        return CloudReaderApplication.getInstance().getSharedPreferences(fileName, Context.MODE_PRIVATE);    }    /**     * 保存一个String类型的值！     */    public static void putString(String key, String value) {        SharedPreferences.Editor editor = getSharedPreference(CONFIG).edit();        editor.putString(key, value).apply();    }    /**     * 获取String的value     */    public static String getString(String key, String defValue) {        SharedPreferences sharedPreference = getSharedPreference(CONFIG);        return sharedPreference.getString(key, defValue);    }    /**     * 保存一个Boolean类型的值！     */    public static void putBoolean(String key, Boolean value) {        SharedPreferences.Editor editor = getSharedPreference(CONFIG).edit();        editor.putBoolean(key, value).apply();    }    /**     * 获取boolean的value     */    public static boolean getBoolean(String key, Boolean defValue) {        SharedPreferences sharedPreference = getSharedPreference(CONFIG);        return sharedPreference.getBoolean(key, defValue);    }    /**     * 保存一个int类型的值！     */    public static void putInt(String key, int value) {        SharedPreferences.Editor editor = getSharedPreference(CONFIG).edit();        editor.putInt(key, value).apply();    }    /**     * 获取int的value     */    public static int getInt(String key, int defValue) {        SharedPreferences sharedPreference = getSharedPreference(CONFIG);        return sharedPreference.getInt(key, defValue);    }    /**     * 保存一个float类型的值！     */    public static void putFloat(String fileName, String key, float value) {        SharedPreferences.Editor editor = getSharedPreference(fileName).edit();        editor.putFloat(key, value).apply();    }    /**     * 获取float的value     */    public static float getFloat(String key, Float defValue) {        SharedPreferences sharedPreference = getSharedPreference(CONFIG);        return sharedPreference.getFloat(key, defValue);    }    /**     * 保存一个long类型的值！     */    public static void putLong(String key, long value) {        SharedPreferences.Editor editor = getSharedPreference(CONFIG).edit();        editor.putLong(key, value).apply();    }    /**     * 获取long的value     */    public static long getLong(String key, long defValue) {        SharedPreferences sharedPreference = getSharedPreference(CONFIG);        return sharedPreference.getLong(key, defValue);    }    /**     * 取出List<String>     *     * @param key     List<String> 对应的key     * @return List<String>     */    public static List<String> getStrListValue(String key) {        List<String> strList = new ArrayList<String>();        int size = getInt(key + "size", 0);        //Log.d("sp", "" + size);        for (int i = 0; i < size; i++) {            strList.add(getString(key + i, null));        }        return strList;    }    /**     * 存储List<String>     *     * @param context     * @param key     List<String>对应的key     * @param strList 对应需要存储的List<String>     */    public static void putStrListValue(String key, List<String> strList) {        if (null == strList) {            return;        }        // 保存之前先清理已经存在的数据，保证数据的唯一性        removeStrList(key);        int size = strList.size();        putInt(key + "size", size);        for (int i = 0; i < size; i++) {            putString(key + i, strList.get(i));        }    }    /**     * 清空List<String>所有数据     *     * @param key     List<String>对应的key     */    public static void removeStrList(String key) {        int size = getInt(key + "size", 0);        if (0 == size) {            return;        }        remove(key + "size");        for (int i = 0; i < size; i++) {            remove(key + i);        }    }    /**     * 清空对应key数据     */    public static void remove(String key) {        SharedPreferences.Editor editor = getSharedPreference(CONFIG).edit();        editor.remove(key).apply();    }    public static boolean getNightMode() {        return SPUtils.getBoolean(Constants.KEY_MODE_NIGHT, false);    }    public static void setNightMode(boolean nightMode) {        SPUtils.putBoolean(Constants.KEY_MODE_NIGHT, nightMode);    }

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