I\'m a newbie programmer android I want to make an android app to record phone activities such as incoming calls, outgoing calls, or miss call and record the logs to a file
Use the PhoneStateListener:
You can read more in the reference.
You probably want to create a service that periodically records call logs. I'd recommend using the CallLog class and since you're a newbie, some tutorial on creating services (use Google)
Take a look at CallLog.Calls
Here are some good tutorials on using call log:
android-tutorial-call-logs
Call Log in Android Application
reading-call-log-from-phone
accessing-call-logs