Make my app launch when secret code entered?

Question

How would I make my app launch when a secret code, such as *#*#12345#*#* is entered into the dialer?

I couldn\'t find a solution in the Android docs.

Answer 1

This is how I did it:

I changed my main activity to have no intent-filters:

I then made a broadcast receiver with the intent filter action: android.provider.Telephony.SECRET_CODE

I then added data to it. The entire thing is below:

Once done, make a class (I made the Launch class in my main class, extending BroadCast Receiver), then in the onReceive class, fire an intent to launch the activity.

Then typing *#*#(secret code)#*#* into the dialer will launch the app.