Crashlytics Android SDK - custom UncaughtExceptionHandler

Question

Is it possible to incorporate custom UncaughtExceptionHandler along with crashlytics in one application? If yes - how?

Answer 1

Since recent versions of Crashlytics perform initialization asynchronously, it's better to use Fabric's initialization callback:

private static Thread.UncaughtExceptionHandler mDefaultUEH;
private static Thread.UncaughtExceptionHandler mCaughtExceptionHandler = 
   new Thread.UncaughtExceptionHandler() {
     @Override 
public void uncaughtException(Thread thread, Throwable ex) {
        // Custom logic goes here

        // This will make Crashlytics do its job
        mDefaultUEH.uncaughtException(thread, ex);
    }
};

CrashlyticsCore core = new CrashlyticsCore.Builder()
            .disabled(BuildConfig.DEBUG)
            .build();
Fabric.with(new Fabric.Builder(this).kits(new Crashlytics.Builder()
            .core(core)
            .build())
            .initializationCallback(new InitializationCallback() {
                @Override
                public void success(Fabric fabric) {
                    mDefaultUEH = Thread.getDefaultUncaughtExceptionHandler();
                    Thread.setDefaultUncaughtExceptionHandler(mCaughtExceptionHandler);
                }

                @Override
                public void failure(Exception e) {

                }
            })
            .build());