qq_39029148的博客

https://blog.youkuaiyun.com/u013553529/article/details/83900704 找了好久，原来是这个少写了 intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION); 来对目标应用临时授权该Uri所代表的文件。

str1=str(msg.payload, encoding = “utf-8”) data=eval(str1) print(data[‘name’]) 这里是引用

https://www.jianshu.com/p/886b421ab9b3

作业要求 UI 2 activity Main Activity A button “Default Chatroom” Chat Activity ListView: display the past messages in the chatroom Input area: input message Send button: submit message back button i...