eXtreme eXception eXpectation; Adriano Orioli, Hrvoje Kozak

eXtreme eXception eXpectation

Crashes suck!

IT´S DANGEROUS TO GO ALONE! TAKE THIS!

What what, what, what?

It ain’t nuthin’ but a code thang

Thread.setDefaultUncaughtExceptionHandler(new ExceptionHandler());

public class ExceptionHandler implements Thread.UncaughtExceptionHandler {@Overridepublic void uncaughtException(Thread thread, Throwable ex) {// Do things with the thread and the exception hereTroidolytics.defaultHandler.uncaughtException(thread, ex);}

}

But what happens when internet go boo boo?

Cache and Carry

Crash reporters cache the exception reports and send them the first time your app is opened with internet access.

But da app sux!!!!1!!!!1!!!11!

What if your crash disappoints the user and they never start the app again?

public class ConnectivityBroadcastReceiver extends BroadcastReceiver {@Override

public void onReceive(Context context, Intent intent) {ConnectivityManager cm = (ConnectivityManager)context

.getSystemService(Context.CONNECTIVITY_SERVICE);

NetworkInfo netInfo = cm.getActiveNetworkInfo();if(netInfo != null && netInfo.isConnected()){

// Send the reports here, you should probably start a serviceTroidolytics.sendReports(); // #inspired

}}

}

<receiver android:name="zg.troido.crashme.ConnectivityBroadcastReceiver"android:enabled="true"android:exported="true"android:label="ConnectivityChange">

<intent-filter><action android:name="android.net.conn.CONNECTIVITY_CHANGE"/>

</intent-filter></receiver>

It’s not only your app that’s not responding

compile 'com.github.anrwatchdog:anrwatchdog:1.1.+'

if (!BuildConfig.DEBUG) {new ANRWatchDog().start();

}

WHY DO WE NEED THIS?

SUPERPOWERS

grouping crashesos version

device modelram / cpu

What what, what, what?

Log EVERYTHINGcaught exceptions, custom messages,variable states

} catch (Exception e) { Crashlytics.logException(e);

ACRA.getErrorReporter().handleException(e); }

And if you are special and want custom logging?

Exporting crashes

WTF is... ACRA?

init@ReportsCrashes( formUri = "http://www.backendofyourchoice.com/reportpath", formKey = "" // This is required for backward compatibility but not used)public class AcraApplication extends Application {...}

init public void onCreate() { super.onCreate(); ACRA.init(this); }

WTF is Crashlytics?

init

get fabric plugin include crashlytics

TAKEOUT

know your appPlan-Do-Check-Adjust

stability matters

Adriano OrioliHrvoje Kozak

Troido