java - Good architecture for detecting Android device shake event? -

i need start activity in case of device shake in android application.

this feature should work in whole app , in activities.

now sure how provide architecture it, because detecting shake , starting activity needs context instance.

i don't want pass current activity instance shakelistener each time change activity.

what suggest?

thanks.

you would have to keep around monitors sensor data, background service. service must continuously monitor sensor events, pass through noise filter, detect shake , send out broadcast.

the activity on other hand can implement matching broadcastreciever.

if don't want add broadcastrecievers activities, can register interested activities in init() code of library:

public void init(context context){      sensortester st = new sensortester(context);      st.registeractivity(mainactivity.class);     st.registeractivity(otheractivity.class); } 

and start them library service using context received in init() code:

for(class c : registeredclasses){      context.startactivity(new intent(this,c)); } 

where want place init() code in target app choice.