无法在android 6.0中找到sdcard文件(不是硬代码) [英] Can not locate the sdcard file(not hard code) in android 6.0

问题描述

自android 6.0起，sdcard路径不再是"/storage/sdcard1/"，"/storage/sdcard-ext/"或其他名称.

Since android 6.0, the sdcard path is no longer "/storage/sdcard1/", "/storage/sdcard-ext/" or something.

路径取决于电话.如果我使用Nexus 5x AVD，则路径为"/storage/1D15-3A1B/".当我使用Nexus 6p AVD时，路径为"/storage/4679-1802/".那么如何动态地在程序中写入sdcard路径以在外部sdcard中定位文件?

The path depends on the phone instead. If I use Nexus 5x AVD, the path is "/storage/1D15-3A1B/". When I use Nexus 6p AVD, the path is "/storage/4679-1802/". So how can I dynamically write the sdcard path in program to locate the file in external sdcard?

谢谢！

推荐答案

我正在尝试许多方法，包括:

I was trying many approaches, including:

Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES)
Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM)
Environment.getExternalStorageDirectory()

我的应用程序仍然看不到DCIM/相机中的图片文件.我可以看到目录名称，但是这些目录中的任何一个上的listFiles()都返回null. 最后，令人毛骨悚然的是，我发现清单中没有包含魔术线android.permission.WRITE_EXTERNAL_STORAGE. 添加权限后，它就像是一种魅力.

Still my picture files in DCIM/Camera were not visible to my app. I could see the directory names, but listFiles() on any of these directories returned null. Finally, and sheepishly, I found that my Manifest did not contain the magic line android.permission.WRITE_EXTERNAL_STORAGE. Once I added the permission, it worked like a charm.

故事的寓意:在这种情况下，Android不会警告/破坏/引发异常.当它失败时，它会默默地失败！

Moral of the story: Android does not warn/break/throw exception under this condition. When it fails, it fails silently!

这篇关于无法在android 6.0中找到sdcard文件(不是硬代码)的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！