How does Android get thumbnails of pictures or videos
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Android
Get thumbnails according to the specified image path and size. This method has two advantages:
1. Using a small memory space, the bitmap obtained for the first time is actually null, just to read the width and height. The bitmap read for the second time is the image compressed according to the proportion, and the bitmap read for the third time is the desired thumbnail.
2. The thumbnail does not stretch the original image. A new tool thumbnailutils in version 2.2 is used here. The image generated by this tool will not be stretched.
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