How to debug Android ANR?

Question

My Android app gets a lot of ANR reports lately in the Google Play console. Since this started to happen when I included Google Analytics in the app, I strongly suspect Analytic

Answer 1

But how to know where it is blocked?

Start by enabling StrictMode and running your app. If you (or Analytics) are doing disk or network I/O on the main application thread, you will find out about it, based upon your chosen penalty style (e.g., log in LogCat):

public void onCreate() {
     if (BuildConfig.DEBUG) {
         StrictMode.setThreadPolicy(new StrictMode.ThreadPolicy.Builder()
                 .detectAll()
                 .penaltyLog()
                 .build());
     }

     super.onCreate();

     // rest of onCreate() logic here
 }