[IOS][Android] add JS interface and options

[ibrahim-sakr]

for a better control, I think you should add

• option to enable the plugin
• option to disable
• event or some return value to detect that user makes a screenshot and prevented -> so we can give the user some feedback
• some kind of callback function (success, error) for enable and disable options.

[devgeeks]

Well, I agree that more options would be better, but at least on Android (where screenshots are blocked) the plugin is simply setting a system level flag. I am not sure there is any way the plugin could know if a user tried to take a screenshot. Android does at least let the user know that it was blocked.