android developer required - FOR EUROPEAN FREELANCERS

an android file manager need to be modified. you have to use the latest version of the android studio. this android file manager has to support Android OS from 4.1.1 to latest one (whichever is any, whether 8.0 or above). this android file manager has to be supported for all resolutions of android phones and tablets. i'll provide the source code of android file manager what you have to modify. 1. Layouts for Android Phones & Tablets: You've to create it's layouts to be compatible with all android phones and tablets. 2. Home Screen: you've to create a new and dynamic Home Screen for this app in which all buttons for storages will be dynamic and should show their storage stat on those buttons. also there will be shortcut buttons on home screen what are available right now on the side bar menu of the app. 3. Progress Box: you've to create Progress Box for the operations of; Copy/Paste, Cut/Paste, Move, Delete, Zip(Compress), Unzip (Extract). 4. Modifications in App: the other functions of the app which should remain same but they should be placed under one sub menu instead of placing in more than one menu. 5. Fix ANRs & Crashes: You've to upgrade the source code to most latest dependencies and other files to fix it's issue related to ANRs & Crashes. 6. PC File Transfer: You've to create a web based function for this app called PC FILE TRANSFER via which user can transfer his data from phone to computer and from computer to phone via connected both devices with same Wifi, using the web browser of the computer. 7. Space Analyser: You've to create a dynamic button next to dynamic storage devices (this button will only show along with the storage device which visible and active in it's own row), called Space Analyser which will tell the user, that what folder and file occupied how much space of his device. 8. Daily Notifications: Local based Daily Notifications has to be write for this app, to notify the user to use this app at least 2 times in a day. These notifications will be written in the code only. they will not be send through any server. 9. Ads: there will be ads to be used, banner, interstitial and rewarded video ads but don't know what platform to use for these 3 type of ad formats other than admob because client cannot use admob.