android 将SharedPreferences做成简单工具

这种处理主要是为了方便将项目的大多数数据存放在一个文件中/** * 向SharedPreferences中存储数据 * @param context * @param fileName * @param key * @param value */public static void setSharedPreferences(Context context, String fileName,String key, Object value) {if (context != null && fileName != null) {SharedPreferences sp = context.getSharedPreferences(fileName,Context.MODE_PRIVATE);Editor editor = sp.edit();if (value instanceof Boolean) {editor.putBoolean(key, (Boolean) value);} else if (value instanceof Float) {editor.putFloat(key, (Float) value);} else if (value instanceof Integer) {editor.putInt(key, (Integer) value);} else if (value instanceof Long) {editor.putLong(key, (Long) value);} else if (value instanceof String) {editor.putString(key, (String) value);}editor.commit();}}/** * 获取SharedPreferences中存储的数据 * @param context * @param fileName * @param key * @param clazz * @return */public static Object getSharedPreferences(Context context, String fileName,String key, Class<?> clazz) {Object object = null;if (context != null && fileName != null && clazz != null) {SharedPreferences sp = context.getSharedPreferences(fileName,Context.MODE_PRIVATE);String name = clazz.getName().substring(10);if (name.equals("Boolean")) {object = sp.getBoolean(key, false);} else if (name.equals("Float")) {object = sp.getFloat(key, -1);} else if (name.equals("Integer")) {object = sp.getInt(key, -1);} else if (name.equals("Long")) {object = sp.getLong(key, -1);} else if (name.equals("String")) {object = sp.getString(key, null);}}return object;}
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