android app to add DNS ip

i want a simple android app that will add DNS to phone.

when user install app he will see a button activate ( when it will be clicked then app will add my ip that ill provide to = DNS of the phone -for all networks mobile and wifi)

DNS ip will be in a json or xml link in my site so app will get from there.

[url removed, login to view] button activated is clicked user will see a popup to enter a password then he can deactivate dns only if he know password

[url removed, login to view] in app home screen will write how much time app has been installed (also date time of last installation)

3. also if possible to show how many times app have been uninstalled .

so user canot change dns if app is activated , u need to do something so app to check if dns is changed and to start on phone start

so this app parents can install in childs phones and when they activate the dns there will be blocked some sites and only parents can deactivate it coz just they know the password, and they will see where the last time was installed the app so they will know if childs uninstalled it

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项目ID： #14861146

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