Studying Randam Shuffle play online

1. App information
App information-> permissions
Allowed apps
--Files and media

Image Shuffle Home Page
2. Settings
2-1. Press enabled (blue).

2-2. /storage/emulated/ 0/Download etc.
Show only directories.
Uppercase and lowercase
* jpg
* jpeg
* jpe
* png
* gif
* bmp
Is the target.

2-3. Press random (blue).

3. Shuffle
3-1. Press enabled (green).
If "another page", then 3-2.
If "Image Shuffle Home Page" , then 2-1.

3-2. Enlarge / reduce by pinching in / out (and rotating) with two fingers.
Expansion
3-2-1. Drag up or down to move up or down.
3-2-2. If you do not go, drag to the right or left and move up or down while dragging.

3-3.
If "press Shuffle" , then 3-3-a.
If "press back" , then 3-3-b.

3-3-a
If "another page", then 3-2.
If "Image Shuffle Home Page" , then 2-1.

3-3-b. "Image Shuffle Home Page". Press "3-1" again to get the same image.

The file (image) that has been read once is not read, and if it is "3-3-b", it is read.