In Android: Are there limitations on what application is capable of doing when the phone rings?

Question

Is appliction able to open camera? Is it able to open bluetooth? Is it able to open microphone?

Thanks!

Answer 1

I think you should check up on the receiver. When call received the receiver fires the intent or something if I am not mistaken , so you need to import the i.telephony , so that you can check the phone state , it will allow you to override the function when ever your phone is going to call or receiving call.

Answer 2

PackageManager.checkPermission(String permName, String pkgName); 

I think this get the permissions info of app. Use package name and permission name.