How to check if Alarm have been set and running

Question

I have a receiver that start after phone boot like this:

Answer 1

The only thing you can do is when the user install the app and open it the first time you can set a flag in the SharedPreference that tells you if the Alarm is set or not if its not set set the Alaram .

in your main Activity check in the onCreate method

SharedPreferences spref = getSharedPreferences("TAG", MODE_PRIVATE);

 Boolean   alaram_set = spref.getBoolean("alarm_set_flag", false);  //default is false

if(!alaram_set){
//create your alarm here then set the flag to true

 SharedPreferences.Editor editor = spref.edit();
        editor.putBoolean("alarm_set_flag", true); // value to store
        editor.commit();
}