Introduction - If you have any usage issues, please Google them yourself
Example is a photo album alternative example source code, can automatically scan the image file on the SD card, and take the first pictures of each folder as the album cover, click can enter the picture selection interface, click on the picture you can select thumbnail pictures, click again to remove the selected state. The selected image will also appear in the form of a small thumbnail. If the thumbnail is more than 3, the display does not appear. You can see other small thumbnails on the right hand side. And also on the Button button to display the selected number of pictures, click OK, you can get the selected picture path, this example can be applied to a lot of places, thumbnail generation is also very fast. A friend in need studies it. Compiled version of 4.2.2 encoding UTF-8, source code annotated