need some changes is existing android native app for android experts only

we have classified ads app - backend designed using code ignitor you must able to work on the backend as well to make required changes in the app, it's a very urgent task you need to complete in 3 or 4 days please download the app to test - [login to view URL] 1)add two more sections of categories on the front page- = farm cart and sell product to the merchant only categories will be on the front page no any ads 2)conditions on listing entry page 1) item condition,2) is shop these two options will be displayed only for categories- 1)tractor, 2)tractors tool and 3)other for categories – Animal, Animal Feed, Fertilizer, seeds and plants for categories – Nursery- add option = price per = (dropdown) 1 qty, 1 crate of 50 qty , 1 crate of 100 qty rename “listing title” label by – Name and type for categories- tractors, tractors tool, and other - add options - model name: year of purchase; for categories fruits, vegetables, and flowers- add options – 1)price per – (dropdown) gm, kg, quantity; 2) Approximate Available stock – 3)users profile picture and name in the menu drawer 4)change layout of category page( check attachment) Text after search bar, location and search up to km section- copy and paste the below text - For 1) Domestic animals - your cow, buffalo, goat, ox, and more you can buy and sell 2) Nursary – you can buy or sell any seeding nursery 3) organic fertilizers – You can sell or buy organic fertilizer like minur,earth warn manur ,dung,etc 4)Animal Feed – you can sell or buy your products 5) Seeds – you can sell or buy seeds 6) Plants – you can sell or buy seeding like - Onion, rice, and sugarcane 7)Grains – you can sell or buy your grains for the rest of all the categories simply add text – you can buy or sell (category name) After every text add the title Fresh Recommendation- 5) remove subcategories 6) remove select state page, because searching ads and posting ads will work using google location 7)other services, enable users to make their portfolio other users will able to chat them When we click on any above category it will display all the users who have registered for these services. On every page need a sticky button of ( Register) Its basic option of register theme self for the services The registration form is simply like this – Name – Contact Number – Location ( google map location) . Other users can chat with the registered users 8) weather API with location-based weather( We will provide an API) 9) add mobile number field on email registration, remove email OTP verification, its asking to enter email OTP after signup using email, remove the sign in with phone option. For every category and services, we want to add a field of available up to-----km please check the attachment first before placing bid also mention "I checked your attachment"