[fix] width/height when naturalWidth unequal real width

[yifei8]

fix width/height when naturalWidth unequal real width because of image scale by flutter engine

[andycall]

@yifei8 Integration test are failed, by the way, please add another spec ?

[yifei8]

@yifei8 Integration test are failed, by the way, please add another spec ?

This happens on some devices, because the flutter engine compresses the image. The width of the original image is particularly large, which is multiple times the width of the screen. Test cases may not be too good to add.

What is fixed here is a logical problem, the width of the returned image is inconsistent with the size in memory

[andycall]

But the checks are failed. Can you fixed it?

[yifei8]

ok,I will take the time to see how to use these test cases while running locally