I have a chart.js line chart displaying properly. When you hover over the y-axis gridlines, the tooltips display as they should.
I'm trying to convert this to function on a touchscreen, so there is no hover. Is there a way to add a simple parameter to make the tooltip show on both hover and onclick?
Note, I know I could add a custom tooltip and add all of that functionality - I'm trying to see if there's just a parameter I can add as I don't need a custom tooltip.
答案 0 :(得分:4)
对于Chart.js v2,您可以specify those events at the root level of chart options。
options: {
events: ['click']
}
答案 1 :(得分:3)
在指定图表的选项时,只需将"click"
添加到tooltipEvents
列表
...
tooltipEvents: ["mousemove", "touchstart", "touchmove", "click"],
});
在下面的小提琴中,除了click
之外,我已从列表中删除了所有其他事件,以便了解它在移动设备上的效果
答案 2 :(得分:0)
对于 ChartJS版本2.8.0 ,您将需要同时添加click
和mouseout
事件,以使工具提示以所需的方式运行。
当鼠标指针移到图表画布区域之外时,click
事件将使工具提示在单击点时显示,而mouseout
事件将隐藏工具提示,这是所需的行为。
注意:如果不添加mouseout
事件,即使在图表画布区域之外移动或单击鼠标,工具提示也不会隐藏。
代码:
options: {
events: ["click", "mouseout"],
....
...