Fix my android webview fragment app

i have an Android app which uses webview fragments, i want you to do 4 things for me. 1. My url in my webview has a image uplode section, but in the app whenever i click on the uplode image button, it does nothing, image uplode in Android webview needs to be done. 2. In my app i have a app bar which has three sections, the first section is called saying(saying fragment) what i want is when user clicks on that section, the app bar and the bottom navigation bar should hide and give a full screen view 3. in my app bar there is a gear icon which does nothing i want you to replace it with a share icon, clicking on which should give sharing option like Whatsapp email etc by which users cam share the webview link. 3. Add a pull to refresh system in the app.