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问题描述
有谁知道为 Apache 的 FileUtils.copyDirectory(File src, File dst) 实现进度条的任何方法?我在 JavaDocs 和 API.似乎是处理批量磁盘操作的常见用例，所以我不确定我是否遗漏了一些明显的东西.
Does anyone know any way of implementing progress bar for Apache's FileUtils.copyDirectory(File src, File dst)? I don't see anything helpful in JavaDocs and API. Seems like a common use case in dealing with batch disk operations, so I'm not sure if I miss something obvious.
推荐答案
我想你必须自己做.我看到了这个直接的解决方案:
I guess you will have to do that yourself. I see this immediate solution:
- 找到您要复制的所有文件，然后先计算数量或总文件大小(取决于您的进度条应该测量什么)
- 使用
FileUtils.copyDirectory(File, File, FileFilter)并滥用"FileFilter作为将进度传达给进度条的回调
- Find all files you are about to copy and count the number or total file size first (depending on what your progress bar should measure)
- Copy the files using
FileUtils.copyDirectory(File, File, FileFilter)and "abuse" theFileFilteras a callback to communicate progress to your progress bar
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