java - Creating a custom paginator indicator -

java - Creating a custom paginator indicator -

i have mock want create when i'm switching between views in viewpager.

the filled in circle indicative of previous page, semi-filled in circle indicate current page , lastly couple of empty circles upcoming pages not viewing.

i wondering can started on how create this?

i wondering how know how many pages left viewed set equal number of empty circles show.

how able move along circle images when swiping between views?

thanks.

you dont need reinvent wheel can utilize library little modificaiton in source code.

use library

https://github.com/jakewharton/android-viewpagerindicator

library have circlepageindicator performing thing need setting current circle scroll pages in viewpager.you need add together code below class drawprevious circle in ondraw method.you can storing selected page in variable , draw previous page indicator per need.

https://github.com/jakewharton/android-viewpagerindicator/blob/master/library/src/com/viewpagerindicator/circlepageindicator.java

java android android-viewpager