问题
Is it possible to make a preview from an url, grabbing all the information such as title, relevant texts and images. Is there any plugins I can use readily?
See this Native android plugin
回答1:
You can do this way :
1)Create a user at https://www.linkpreview.net
2)Generate an Access Key.
3)From your code call
http://api.linkpreview.net/?key=<Your_API_KEY_From_Step_2>&q=https://www.google.com
It returns the meta tags in JSON as below :
{"title":"Google","description":"Search the world's information, including webpages, images, videos and more. Google has many special features to help you find exactly what you're looking for.","image":"http:\/\/www.google.com\/images\/branding\/googlelogo\/1x\/googlelogo_white_background_color_272x92dp.png","url":"https:\/\/www.google.com\/"}
4) Use it in flutter widget to create a preview.
回答2:
Currently, there is not an open source library for flutter providing these meta tags for a website.
There is a temporal solution, using these freemium APIs for getting this information. The main drawback is that the requests are limited before paying.
来源：https://stackoverflow.com/questions/53408402/rich-link-preview-in-flutter