Show custom data on Tooltip from both axis

[sukhcha-in]

Hello, Can we pass custom data to Tooltip?
For example i want to show 5 Jul: ₹200 on tooltip instead of 200.0
Like i also want to grab some data from horizontal axis to show date and also the price from vertical axis.

To achieve this i think i have to pass all of my hotizontal axis values and then onLongPress i have to get data from it.
If i add all of my Date data to horizontal axis, it gets overlapped.
Like this:

Can you please add option to set how many values developer wants to show on chart, so that remaining values remain hidden instead of overlapping? Same thing on vertical axis will be a PlusPlus.

[imaNNeo]

Hi,
Does it help you?

If yes, check the source code,
I didn't get your next question.

[sukhcha-in]

Thank you i have figured out both things.

[enricobenedos]

Hi guys, if you want I can create a new issue but I think we can reuse this one.
I have a problem with the tooltip values. I'm trying to change the numeric value mantaining the beautiful standard text color.
This is my chart:

It is perfect, I need only to apply this formula to the two double values: (value*5)/100.
I've tried to do that using the TouchTooltipData class but I don't understand how to mantain the two original colors.
Can anyone please help me?

[imaNNeo]

Hi @enricobenedos, do you want to change the opacity of the tooltip texts color?

[enricobenedos]

Hi, I need to know how to change the tooltip value. For example from 2.5 to 25, but maintaining the text style.

[imaNNeo]

Ok, got it, check this sample, we changed the text of tooltip, (this is a bar chart, but the tooltip is the same in the line chart)
@enricobenedos

[enricobenedos]

I already tried this. It works but in this way I will lose the inherited text style. In my case 3.025 --> blue and 2.5 --> green

[imaNNeo]

I know, but you can set any TextStyle with a custom color that you want in the TooltipItem,
I use the line color for showing related text, you can do it by yourself.
Does it make sense?

[enricobenedos]

It make sense! My problem was the colors, now finally I understood how to retrieve the colors calling touchedSpot.getColor()

lineTouchData: LineTouchData(touchTooltipData:
                                      TouchTooltipData(
                                          getTooltipItems: (touchedSpots) {
                                    return touchedSpots.map((touchedSpot) {
                                      return TooltipItem(
                                          touchedSpot.spot.y.toString(),
                                          TextStyle(
                                              color: touchedSpot.getColor(),
                                              fontWeight: FontWeight.bold));
                                    }).toList();
                                  })),