本文介绍了保存到 SD 卡的图像不会出现在 Android 的图库应用中的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
I save an image to the sdcard and it doesn't appear in the Gallery application until I pull off the sdcard and return it back.
Do you have any idea why is it so?
Seems like the Gallery application has some cache that isn't updated on file save...
Actually, I also want to open the just-saved image in Gallery application and have no success with that
this is my question about this issue.
解决方案
The system scans the SD card when it is mounted to find any new image (and other) files. If you are programmatically adding a file, then you can use this class:
http://developer.android.com/reference/android/media/MediaScannerConnection.html
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