Build an Android application

i need to build an Android application Screens: 1) Splash Screen 2) Login Screen 3) Schedule Screen (List of items) 4) Schedule Client Screen (text and 3 buttons) 5) QR Code Scanner Screen 6) Client Screen (text and image and 3 lists and 3 buttons) 7) Get GPS coordinates Screen 8) Add Supply Screen (form with send button) Important features: 1) Get GPS Location and send it to server 2) QR Code Scanner 3) Get and Post data to/from server APIs (JSON) including uploading an image taken from mobile camera 4) no need for local database 5) no animation i already have a design and requirements document. ---------------------------------------------------------------------- please submit and estimated hours with your proposal