问题
I want to be able to share images from my app on twitter/facebook/email etc.. There's probably hundreds of different ways to do this which is quite simple. However what I need/want to do, is allow the images to be opened by other people straight into my app (If they have it installed).
So I have a url scheme so a url will open my app with an image like this:
myurlscheme://image?url=http://imageurl.com
The problem I have, is the process for uploading the image, but adding my url scheme to the beginning of the url.
If I could know the url twitter/facebook is going to use before I send the tweet, I could add my url scheme to the front of the image url and put it in the tweet. I'm guessing this might not be possible though.
Another thought is to upload the image to another service, get the url, then compose and send the tweet. Are there any suitable services for doing this? (Preferably free services) I dont really want to have to host the images myself.
Thanks
回答1:
1) I don't see how you plan on conjuring an image URL before you upload the image - that is a chicken/egg situation. I would recommend taking a look at an actual image URL after you upload it to facebook, twitter, etc and try to figure out even one character of what it would be for the next image you upload. Regarding twitter specifically the image URL is also going to vary depending on what upload service is being used.
2) regarding uploading the image and getting the URL why not look into tapping into the flickr API?
来源：https://stackoverflow.com/questions/17627897/ios-tweet-image-can-i-get-the-image-url-before-upload