Is there a way to detect that the device is turned on but the BOOT_COMPLETED broadcast? I know I can catch the Broadcast with a BOOT_COMPLETED RECEIVER, but is there anything that is fired directly after device is turned on, for example if the user turns on the device and the System Pin request is appearing? I checked in Samsung Galaxy S3 and the BOOT_COMPLETED is only fired after user has logged into the sytsem with the pin number, but I need a way to detect before the pin is entered.
Explanation: No fear, don´t want to do anything evil :) , just want to practise my first security app.
The short answer to your question is NO, there is no system-level global broadcast action sent before BOOT_COMPLETED. There is an action called com.htc.intent.action.QUICKBOOT_POWERON available on HTC devices which probably wont be of any use in your situation, but its all there is.
That is all.