Hi I want to get a twitter user access token/refresh token so that My application can post/read tweets on behalf of the user..
I have a button in my app.. on clicking of the button, I need to show something like below image - 
user should be able to provide his/her credential and if it is already logged in to twitter then he/she should only see authorize app button..
I created a new app in my developer twitter account.. but little clueless on how to get user's access token to post/read behalf of him...