What happens to the main function when Android can't see it? Program is abnormal, you can not prompt "XXX software stop running"?

Today we have this problem and share the solution.

Android does not have a main function, and naturally there is no solution to add exception handling in main to achieve global exception capture. Does the Android program have a solution for global exception replenishment?

The answer is:

That is, you have to inherit the application from the Android project, such as:

public class Readerapplication extends application implements thread.uncaughtexceptionhandler{...}

and implement the thread exception replenishment interface: Thread.uncaughtexceptionhandler

This way your program, as long as there are no handling exceptions, will be captured in the Uncaughtexception function below. My practice is to restart the application.

@Overridepublic void uncaughtexception (thread thread, Throwable ex) {//TODO auto-generated method stub//system.exit (0) ; Intent Intent = Getbasecontext (). Getpackagemanager ().              getlaunchintentforpackage (Getbasecontext (). Getpackagename ());                      Pendingintent restartintent = pendingintent.getactivity (                    getapplicationcontext (), 0, intent,                    Intent.flag_ Activity_new_task);                                                         Exit program                                                  Alarmmanager mgr = (alarmmanager) getsystemservice (context.alarm_service);            Mgr.set (ALARMMANAGER.RTC, System.currenttimemillis () +                    restartintent);//1 seconds after restart application                   system.exit (0);        }

But you have to say that you have to register the exception callback interface in the OnCreate function of application:

Thread.setdefaultuncaughtexceptionhandler (this);

Finally, you have to change this sentence into your own application in the Androidmanifest.xml:

<application
Android:name= "Com.founder.reader.ReaderApplication"

Well, with the above global exception handling, there is no use of the so-called main function can be achieved. At the same time, the program will no longer prompt "XXX software to stop running".

Finally: The program restarts with the system clock to restart, or the program exits, who will perform the restart task:

Alarmmanager mgr = (alarmmanager) getsystemservice (Context.alarm_service); Mgr.set (ALARMMANAGER.RTC, System.currenttimemillis () + restartintent); Restart the app after 1 seconds

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