objective-c - Can I view thumbnails of uploaded images?

Question

I have uploaded the image. When I download it again, can I download the thumbnail instead of downloading the original image directly, and then download the original image when I click to view it?

Answer 1

Crop the middle part and reduce it proportionally to generate a 200x200 thumbnail:

http://78re52.com1.z0.glb.clouddn.com/resource/gogopher.jpg?imageView2/1/w/200/h/200

You can refer to http://developer.qiniu.com/code/v6/api/kodo-api/image/imageview2.html#imageView2-samples