如何在android上保留图像文件的最后修改日期？(How can I persist last modified date of image file on android?)

 我正在开发一个Android应用程序，压缩手机上的所有图像。 
 
 我使用内容解析器来处理图像。 但是，压缩后图像的上次修改日期发生了变化。 我想保留日期，因为媒体扫描后（重启后）图像的顺序会发生变化。 
 
 
 
 使用内容解析器更新图像上的ContentValues不起作用，因为在媒体扫描后重建了图像的上次修改日期。 
 
 
 调用“File.setLastModified（）”也可能无法工作，因为此方法的有效性取决于SD卡的设置。 
 
 
 我需要持久的方法来保持媒体扫描后的最后修改日期。 我假设Content Resolver可以提供方法持久化属性。 
 
 你能帮我吗？ 

I`m developing an android app which compresses all images on phone.
 
I used Content Resolver to handle images. But, Last modified date of images was changed after compressing. I want to keep the date because the order of images are changed after media scan (after reboot).
 
 
 
Updating ContentValues on images using Content Resolver didn`t work because Last modified date of images was rebuilded after media scan.
 
 
Call "File.setLastModified()" also could be unable to work because validity of this method depends on setup of SD card.
 
 
I need persistent method to keep the last modified date after media scan. I assume that Content Resolver can provide the method persisting properties.
 
Would you help me?

原文：https://stackoverflow.com/questions/26605999