链接metamask移动app

[ming3904]

Describe the usability problem 我开发了一个APP，用的flutter，需要通过我的APP打开metamask APP来获取地址和签名，我没有找到合适的样例或者开发文档

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User impact | Usage frequency | Feasibility scores How important is this to the user, what the user wants to accomplish | Daily, weekly, monthly | Small, medium, large

[zidianjian]

自己写一个html5页面，然后用打开dapp接口，拉起metamask，并跳转到浏览器，打开你的页面，在页面里自己写授权功能，授权完拉起你的app