Granularity makes my app crash because require index from zero

[Vaianaa]

                // when you click button this counter increase
                //note: using this counter will make your app being crash on 5 step Granularity
                //my granularity is setGranularity(5);
                //this is my problem and i don't know why. so, i have to make the counter start from zero
                //like this                
                counter++
                int c = counter - 1;

Originally posted by @Vaianaa in #1742 (comment)

[liuxuan30]

please explain and don't create duplicated issues. and, don't hijack other threads.