M300+h20 mediaManager.refreshFileListOfStorageLocation获取内...

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DJI Developer Support

• January 12, 2022 08:06

M300+h20 mediaManager.refreshFileListOfStorageLocation获取内置卡失败后(300没有内置卡),再去获取外置卡数据返回mediafile为0个文件,直接获取外置卡mediafile则正常,导致无法实现切换获取内/外置卡数据

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  781316853

  • January 12, 2022 08:23

  scheduler.resume的回调mediafiles数量为0

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  DJI Developer Support

  • January 12, 2022 11:09

  M300+H20本身就不支持机身存储，必须从SD卡里面获取相机照片。你要把M300和H20的固件都升级到最新，并且SDK版本升级到4.16才行。

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  781316853

  • January 12, 2022 12:05

  我知道内置卡不行 但是失败后获取外置卡的媒体数据也不行了

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  781316853

  • January 13, 2022 02:10

  mediaFiles = mediaManager.getSDCardFileListSnapshot();
  第一次为5
  再次获取为0
  是什么原因

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  781316853

  • January 13, 2022 02:31

  经过测试只要调用过

  mediaFiles = mediaManager.getInternalStorageFileListSnapshot();

  那么

  mediaFiles = mediaManager.getSDCardFileListSnapshot();  就拿不到数据了

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  DJI Developer Support

  • January 13, 2022 03:31

  你refreshFileListOfStorageLocation了两次没？要获取refreshFileListOfStorageLocation的参数设置为机身，然后你去getInternalStorage，然后再refreshFileListOfStorageLocation一次，参数设置为SD卡，再getSDCardStorage。

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  781316853

  • January 13, 2022 03:34

  refreshFileListOfStorageLocation调用了的

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  DJI Developer Support

  • January 19, 2022 11:01

  我这边测试是没有出现这个问题的。你尝试用一下这个demo。不插入SD卡的状态运行demo，无卡状态下浏览文件列表，然后插入SD卡，再浏览文件列表，看看能不能成功。 DJI-Mobile-SDK-Tutorials/Android-MediaManagerDemo: This demo is designed for you to learn how to use the MediaManager to interact with the file system on the SD card of the aircraft's camera. You can use it to preview photos, play videos, download or delete files and so on. (github.com)

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  781316853

  • January 21, 2022 08:33

  已解决 参考demo修改了代码

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