Android之SharedPreferences管理类AppPreferences

Android中对SharedPreferences管理的工具类，喜欢这种写法。
public class AppPreferences {public static class PreferenceKey {    public final static String SP_NAME_NAME = "app_config"; // public static final String TEST_KEY = "test_key";}private static AppPreferences appPreferences;private SharedPreferences preferences;private AppPreferences() {    preferences = BaseApplication.getInstance().sharereferences;}public static AppPreferences instance() {    if (appPreferences == null) {        appPreferences = new AppPreferences();    }    return appPreferences;}public void put(String keyName, Object value) {    SharedPreferences.Editor editor = preferences.edit();    if (value instanceof String) {        editor.putString(keyName, (String) value);    } else if (value instanceof Integer) {        editor.putInt(keyName, (Integer) value);    } else if (value instanceof Boolean) {        editor.putBoolean(keyName, (Boolean) value);    } else if (value instanceof Float) {        editor.putFloat(keyName, (Float) value);    } else if (value instanceof Long) {        editor.putLong(keyName, (Long) value);    } else {        editor.putString(keyName, value.toString());    }    editor.apply();}public Object get(String keyName, Object defaultValue) {    if (defaultValue instanceof String) {        return preferences.getString(keyName, (String) defaultValue);    } else if (defaultValue instanceof Integer) {        return preferences.getInt(keyName, (Integer) defaultValue);    } else if (defaultValue instanceof Boolean) {        return preferences.getBoolean(keyName, (Boolean) defaultValue);    } else if (defaultValue instanceof Float) {        return preferences.getFloat(keyName, (Float) defaultValue);    } else if (defaultValue instanceof Long) {        return preferences.getLong(keyName, (Long) defaultValue);    }    return null;}/** * 保存一个实体类，类名为key */public void putObject(Object obj) {    putObject(obj.getClass().getName(), obj);}/** * 获取一个存储实体类 */public  T getObject(Class c) {    return getObject(c.getName(), c);}/** * 保存一个实体类 * * @param key    key * @param object object */public void putObject(String key, Object object) {    if (object == null) {        return;    }    String value = (new Gson()).toJson(object);    preferences.edit().putString(key, value).apply();}/** * 获取一个存储实体类 * * @param key key * @param c   c * @param  T * @return  T */public  T getObject(String key, Class c) {    String value = preferences.getString(key, "");    if (TextUtils.isEmpty(value)) {        return null;    }    T t = (new Gson()).fromJson(value, c);    return t;}/** * 保存List * * @param key      key * @param datalist list */public  void putDataList(String key, List datalist) {    if (null == datalist || datalist.size() <= 0) {        return;    }    Gson gson = new Gson();    // 转换成json数据，再保存    String strJson = gson.toJson(datalist);    preferences.edit().putString(key, strJson).apply();}/** * 获取List * * @param key key * @return List */public  List getDataList(String key, Class clazz) {    String strJson = preferences.getString(key, null);    if (null == strJson) {        return null;    }    Type type = new TypeToken>() {    }.getType();    ArrayList jsonObjects = new Gson().fromJson(strJson, type);    ArrayList arrayList = new ArrayList<>();    for (JsonObject jsonObject : jsonObjects) {        arrayList.add(new Gson().fromJson(jsonObject, clazz));    }    return arrayList;}/** * 移除某个key值对应的值 * * @param key key */public void remove(String key) {    preferences.edit().remove(key).apply();}/** * 清除所有数据 */public void clearAll() {    preferences.edit().clear().apply();}/** * 查询某个key是否已经存在 * * @param key key * @return boolean */public boolean contains(String key) {    return preferences.contains(key);}/** * 获取所有的键值对 * * @return 所有的键值对 */public Map getAllKeyValue() {    return preferences.getAll();}/** * 创建一个解决SharedPreferencesCompat.apply方法的一个兼容类 */private static class SharedPreferencesCompat {    private static final Method sApplyMethod = findApplyMethod();    /**     * 反射查找apply的方法     */    @SuppressWarnings({"unchecked", "rawtypes"})    private static Method findApplyMethod() {        try {            Class clz = SharedPreferences.Editor.class;            return clz.getMethod("apply");        } catch (NoSuchMethodException e) {            e.printStackTrace();        }        return null;    }    /**     * 如果找到则使用apply执行，否则使用commit     */    public static void apply(SharedPreferences.Editor editor) {        try {            if (sApplyMethod != null) {                sApplyMethod.invoke(editor);                return;            }        } catch (IllegalArgumentException | InvocationTargetException | IllegalAccessException e) {            e.printStackTrace();        }        editor.commit();    }}}
SharedPreferencesCompat 在代码中实际上没调用到，网上找的资料为了兼容而写的，需要用的时候就用吧，可以参考写出其他兼容方法，O(∩_∩)O哈哈~
BaseApplication中：
截图
双十一马上就要到了，啊啊啊啊啊！剁手剁手剁手~~~看花眼了，我要控制我寄几！！！
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