How can i add null values to my chart?

[rashidasgari]

I was wondering if there is a way to add null values to two chart. Meaning i want to have gaps in my chart. I have LineChart with two data sets. Something like this

[liuxuan30]

Line breaking feature is not supported yet, but you could use two data sets to simulate the gap.
To add null, just create the xIndex but not insert any entry for that xIndex

[rashidasgari]

[value addObject:[[ChartDataEntry alloc] initWithValue:val xIndex:i]];
This is how im adding the data to my datasets. How can i add xIndex without any value?! initWithValue does not accept null values.

[liuxuan30]

you just not call [ChartDataEntry alloc] initWithValue:val xIndex:i] on i
x [0,1,2,3,4]
y [1, ,3,4,5]

[rashidasgari]

Finally figured it out. Assuming there are P = M + N point on the chart, i added the first series from 0 to N index and the second one from N to M.