add paypal button to app in 4 hours

We having 4+ yrs experience in Android and IOS application development, feature enhancement, bug fixing and debugging in Android, Java. Known for writing efficient, maintainable and reusable code that preserves privacy and security Proficient in object-oriented design, data structures, problem solving, complexity analysis, and debugging . Working Knowledge in fragments, Material Designing, service, broadcast receivers, content providers, JSON, Gson, google map , Chatting app, e-commerce in Android. Experience in the interaction between THIRD-PARTY API of Android like Volley, Picasso, Fabric and payment gateway etc Expert in the interaction between various devices and different versions of Android and ios. Portfolio : https://www.freelancer.com/u/akankshakhare06.html Android APP 1: [login to view URL] 2: [login to view URL] 3: [login to view URL] 4: [login to view URL] 5: [login to view URL] 6: [login to view URL] 7: [login to view URL] 8: [login to view URL] 9: [login to view URL]