LineChartView | 自定义带动画的颜色渐变折线图 -

I have been facing this problem for a long time. I wish to set equal space between the x-axis labels in my iOS chart. I referred to this solution and applied the code as lineChartView.xAxis.avoidFirstLastClippingEnabled = true, but it didn't work out. Then I did set the value to be false then it gave me somewhat equal spacing but now my first and last x-axis label is being hidden in the chart. Please help me out with this solution.

I have created a LineChartView using the 'Charts' pod.

I have made the plotted line follow a function (f(x) = ax^2) where the value 'a' is being randomized as soon as the user touches the LineChartView. The x-axis has a defined maximum of 100 through a for in loop. This has however led to the y-axis having a defined maximum value of a*10000, where a is randomly created every time the user touches the LineChartView.

This means that it does not actually look like the graph changes at all. The only visible change is that the y-axis gets a new maximum value each time a is getting randomly created. I would like a way to set the maximum value for the y-axis. Something along the lines of:

I'm trying to add an UIImage for the last data entry point but when I use getPosition the image was in the wrong place. Or there is other way to do it? I tried this answer but the image position was still off.

I appreciate the title is not very well written but its a little difficult to explain my issue succinctly...

I'm creating an Android app and I've got a custom chart view that has a little popup that should be able go outside the bounds of the chart view itself and will position itself based on where you select on the line chart.

I'm having trouble getting this to work when I have more than 1 parent view group in the hierarchy. This is my layout xml:

So I'm creating a fitness app to display a changing variable calories burnt today stored as a Double in User defaults. I want to make it such that every hour, the view controller displaying the line graph would check the User default calories burnt today and add a line chart entry containing the value stored in calories burnt today and display it on the line graph so that the user would be able to monitor his calories burnt throughout the day.

But the problem is that the first time I segue into the viewController, there is a single point present in the line graph showing the number of calories burnt, but when I next segue into the ViewController, the line graph view is blank!

code is below:

I am using a UITableViewCell to show data. When the view loads, the data is empty, however once the api call is complete I want to reinitialize the UITableViewCell so that the data can appear. I am using the following code, but TableView.reloadData() does not reinitialize the UITableViewCell so the data does not reload.

TableViewCell

I'm coding a GraphViewController class that houses an array of graphs (of type LineChartView). However, when I attempt to display these graphs in the format of cells of a collection view (using the called class GraphCell), the LineChartView objects don't seem to load any data, even though these functions are called inside the GraphViewController class. Here are the relevant bits of my code so far:

When creating a line chart from more than one data sets, the line chart only shows one of the data sets and when zooming or panning the chart it crashes with Fatal error: Can't form Range with upperBound < lowerBound.

If I create the line chart from one data set it works as expected.

This problem only occurs when the two datasets have completely different ranges of X values.

The code below should draw a chart with x ranging from 0 to 19 (i.e. 2 datasets). But it only draws the second dataset. The chart crashes if you pan or zoom it.

If I edit the code, replacing for x in (10..<20) with for x in (0..<10), both datasets are correctly drawn and the chart does not crash.

To summarise: when adding two dataSets that have entries with different ranges of X coordinates the chart draws incorrectly and will crash.

Is there an iOS_charts API call needed to prevent this? How can I draw two datasets that do not have overlapping X-coordinates?

I've been able to produce the same crash when running code using this demo code if I modify it to create multiple datasets that have non-overlapping x-coordinates.

I am using LineChartView in collection view cells, but randomly when I scroll sometimes orange/brown axis lines are being displayed.

Code I used to create LineChartView