Webview for android- with cache function/clear cache, and open links externaly

[login to view URL] app start, user will see webview(iframe) of this link [login to view URL] [login to view URL] 2. CACHE should be enabled so all things need to be cached, js, html. img...... so next time it will load them faster -javascript/jquery should be enabled, also COOKIES need to be enabled coz my site set cookie for long time [login to view URL] app starts it will also check this json file in the background: ([login to view URL]) and it will save the version number. so on each app start it will check the number, if number is same then nothing to do , if number is bigger(different) from the number saved on app then CLEAR APP CACHE (this will not clear cookie) 4. in my site (that will be shown on webview) i can have links that when user click on them they to be opened with external browser not inside webview. how can we achive this, maybe i can make links like this: a) insteand of [login to view URL] i can make external://[login to view URL] so app will know that need to open link with external browser b) or i can make links like this [login to view URL] then app know that this link need to open in external browser not inside a webview and then remove TYPE=external when opening link 4.1 same logic need to for sharing links, so if inside webview is a link that start with share://[login to view URL] or [login to view URL] it means when user click that link app will not open it inside webview but it will show options to share it. 4.2 there can be other things based on same logic 5. webview should support upload images from phone if i put html image upload FORM in my site 6. app need to be protected so if someone decompile he cant see the url (maybe to encrypt or make something to url of webview ) [login to view URL] no network app will show a message and NOT to show link which is in webview coz i dont want people know its a webview