问题
I am having a really weird issue. My app runs great on wifi, all of my images load from the net.
If i run the app for the very first time on 3G, images wont load.
If I switch to wifi, then switch back to 3G, images will load (new images load as well as they change).
I have no idea how to diagnose.
回答1:
This might be an issue with your service provider (cell-phone tower). On 3g, can you load a website (say, apple.com) and the images show?
回答2:
Some suggestions
- Show some image loading code.
- Do you see anything in the console?
- Do the images load in MobileSafari when you are connected to 3G?
- If you use URLConnection to load the images. Do you handle or log errors?
This is hard to debug without more information.
来源：https://stackoverflow.com/questions/3533557/app-loads-images-over-wifi-but-not-3g