imaNNeo/fl_chart
Voir sur GitHubDynamic tooltipBgColor in LineChart [Partial idea, i need help with the final part]
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#1 088 ouverte le 7 juil. 2022
Line Chartgood first issuequestion
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Description
Hello,
I am trying to implement a dynamic tooltipBgColor, i achieved something, but i need help with the final part.
As you can see in the following code, i am able to get the "y" coordinates of the pressed spot, since it's printed correctly. The problem is that even if i change the color of color_of_pressed_spot to the one i want, the color is not displayed since i would need to call setstate, but i cannot do it in that moment or i will get an error. Any idea on how to do it?
LineChartData mainData() {
return LineChartData(
lineTouchData: LineTouchData(
touchTooltipData: LineTouchTooltipData(
tooltipBgColor: color_of_pressed_spot,
getTooltipItems: (List<LineBarSpot> spots) {
return spots.map((spot) {
print("Spot y: ${spot.y}");
color_of_pressed_spot = changeColor(list_of_colors_i_want_to_use_for_each_spot_y, spot.y);
return LineTooltipItem(
getName(spot.y),
const TextStyle(color: Colors.white),
);
}).toList();
},
),
),);}