MPAndroidChart adding setData compiler error

Question

I am trying to create a line graph using MPAndroidChart. I have looked at many examples online and they all seem to suggest that you add data to a chart like this:

    LineChart graph = (LineChart) view.findViewById(R.id.chart);

    // creating list of entry
    ArrayList<Entry> entries = new ArrayList<>();
    entries.add(new Entry(4f, 0));
    entries.add(new Entry(8f, 1));
    entries.add(new Entry(6f, 2));
    entries.add(new Entry(2f, 3));
    entries.add(new Entry(18f, 4));
    entries.add(new Entry(9f, 5));

    // creating labels
    ArrayList<String> labels = new ArrayList<String>();
    labels.add("January");
    labels.add("February");
    labels.add("March");
    labels.add("April");
    labels.add("May");
    labels.add("June");

    graph.setData(entries, labels);

But I get a compiler error on setData saying:

setData (com.github.mikephil.charting.data.LineData) in Chart cannot be applied to (java.util.ArrayList, java.util.ArrayList)

I can fix the compiler error by changing my code to:

LineDataSet dataSet = new LineDataSet(entries, "# of Calls");
LineData lineData = new LineData(dataSet);

graph.setData(lineData);

But then I get this run time error:

FATAL EXCEPTION: main Process: com.ebucher.lisa, PID: 11365 java.lang.NegativeArraySizeException: -2 at com.github.mikephil.charting.utils.Transformer.generateTransformedValuesLine(Transformer.java:181) at com.github.mikephil.charting.renderer.LineChartRenderer.drawValues(LineChartRenderer.java:570) at com.github.mikephil.charting.charts.BarLineChartBase.onDraw(BarLineChartBase.java:272) at android.view.View.draw(View.java:17469) at android.view.View.updateDisplayListIfDirty(View.java:16464) at android.view.View.draw(View.java:17238) at android.view.ViewGroup.drawChild(ViewGroup.java:3921) at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3711) at android.view.View.draw(View.java:17472) at android.view.View.updateDisplayListIfDirty(View.java:16464) at android.view.View.draw(View.java:17238) at android.view.ViewGroup.drawChild(ViewGroup.java:3921) at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3711) at android.view.View.updateDisplayListIfDirty(View.java:16459) at android.view.View.draw(View.java:17238) at android.view.ViewGroup.drawChild(ViewGroup.java:3921) at android.support.v4.widget.DrawerLayout.drawChild(DrawerLayout.java:1373) at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3711) at android.view.View.updateDisplayListIfDirty(View.java:16459) at android.view.View.draw(View.java:17238) at android.view.ViewGroup.drawChild(ViewGroup.java:3921) at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3711) at android.view.View.updateDisplayListIfDirty(View.java:16459) at android.view.View.draw(View.java:17238) at android.view.ViewGroup.drawChild(ViewGroup.java:3921) at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3711) at android.view.View.updateDisplayListIfDirty(View.java:16459) at android.view.View.draw(View.java:17238) at android.view.ViewGroup.drawChild(ViewGroup.java:3921) at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3711) at android.view.View.updateDisplayListIfDirty(View.java:16459) at android.view.View.draw(View.java:17238) at android.view.ViewGroup.drawChild(ViewGroup.java:3921) at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3711) at android.view.View.updateDisplayListIfDirty(View.java:16459) at android.view.View.draw(View.java:17238) at android.view.ViewGroup.drawChild(ViewGroup.java:3921) at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3711) at android.view.View.draw(View.java:17472) at com.android.internal.policy.PhoneWindow$DecorView.draw(PhoneWindow.java:3205) at android.view.View.updateDisplayListIfDirty(View.java:16464) at android.view.ThreadedRenderer.updateViewTreeDisplayList(ThreadedRenderer.java:325) at android.view.ThreadedRenderer.updateRootDisplayList(ThreadedRenderer.java:331) at android.view.ThreadedRenderer.draw(ThreadedRenderer.java:366) at android.view.ViewRootImpl.draw(ViewRootImpl.java:3134) at android.view.ViewRootImpl.performDraw(ViewRootImpl.java:2933) at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2522) at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1437) at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:7397) at android.view.Choreographer$CallbackRecord.run(Choreographer.java:920) at android.view.Choreographer.doCallbacks(Choreographer.java:695) at android.view.Choreographer.doFrame(Choreographer.java:631) at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:906) at android.os.Handler.handleCallback(Handler.java:739) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:158) at android.app.ActivityThread.main(ActivityThread.java:7229) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)

I get the same errors when I try to create a bar graph instead of a line graph.

@Guardanis LineData (com.github.mikephil.charting.interfaces.datasets.ILineDataSet...) in LineData cannot be applied to (java.util.ArrayList<java.lang.String>, com.github.mikephil.charting.data.LineDataSet) — java
– java, Commented Jul 22, 2016 at 17:35
@Guardanis I am using "com.github.PhilJay:MPAndroidChart:v3.0.0-beta1" I will try using 2.2.5 instead. — java
– java, Commented Jul 22, 2016 at 20:06
Have you tried sorting the entries by x-index? Also, please note that in version 3.0.0 the first paramater of Entry is the x-value, and the second one is the y-value, so chances are you'll want to switch the order of your Entry intialization, so it's e.g. new Entry(0, 4f);. — TR4Android
– TR4Android, Commented Jul 27, 2016 at 8:04

TR4Android · Accepted Answer · 2016-07-27 08:46:38Z

Starting with version 3.0.0-beta1 the Entry constructors have changed to Entry(float x, float y) so you'll have to first pass the x-index and then the corresponding y-value. Even though this breaks backwards compatibility it feels more natural now that float x-values are supported.

So you should change your code to this:

LineChart graph = (LineChart) view.findViewById(R.id.chart);

// creating list of entry
ArrayList<Entry> entries = new ArrayList<>();
entries.add(new Entry(0, 4f));
entries.add(new Entry(1, 8f));
entries.add(new Entry(2, 6f));
entries.add(new Entry(3, 2f));
entries.add(new Entry(4, 18f));
entries.add(new Entry(5, 9f));

LineDataSet dataSet = new LineDataSet(entries, "# of Calls");
LineData lineData = new LineData(dataSet);

graph.setData(lineData);

Also, in order to do rendering optimizations the entries have to be sorted by x-value, which might be why your chart is crashing (since you've switched x- and y-values in your entries). The fixed code above is already properly sorted.

Philipp Jahoda · Accepted Answer · 2017-08-04 15:02:38Z

1

The error is caused because you have unsorted values (not sorted by x-position). You can fix doing:

List<Entry> entries = ...;
Collections.sort(entries, new EntryXComparator());

Also check the documentation for more information on that issue.

edited Aug 4, 2017 at 15:02

Philipp Jahoda

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answered Dec 12, 2016 at 14:39

AndroidRuntimeException

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Comments

PKPK-Carnage · Accepted Answer · 2016-07-27 07:38:48Z

0

I'm struggling with this error too.

I just found a method of avoid error.

List can't store index more than 6. You try list store index less than 5.

Example:

ArrayList<Entry> entries = new ArrayList<>();
entries.add(new Entry(4f, 0));
entries.add(new Entry(8f, 1));
entries.add(new Entry(6f, 2));
entries.add(new Entry(2f, 3));
entries.add(new Entry(18f, 4));

// creating labels
ArrayList<String> labels = new ArrayList<String>();
labels.add("January");
labels.add("February");
labels.add("March");
labels.add("April");
labels.add("May");

But application sometimes finish and get NegativeArraySizeException:-2.

When you try list store index less than 4.

I think this error is v3.0.0-beta1's bug.

Sorry for my poor English. I hope you'll understand.

edited Jul 27, 2016 at 7:38

answered Jul 27, 2016 at 5:00

PKPK-Carnage

12 bronze badges

Comments

Naveen Kumar M · Accepted Answer · 2016-07-27 08:06:08Z

0

You are adding LinedataSet object to setDate instead of List of LinedataSet objects

Refer below code

LineDataSet dataSet = new LineDataSet(entries, "# of Calls");
ArrayList<ILineDataSet> dataSetList = new ArrayList<ILineDataSet>();
            dataSets.add(dataSet ); // add the datasets
LineData lineData = new LineData(dataSetList);

graph.setData(lineData);

answered Jul 27, 2016 at 8:06

Naveen Kumar M

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Comments

Lutaaya Huzaifah Idris · Accepted Answer · 2017-08-07 07:48:22Z

-1

Try downgrading the dependency to:

compile 'com.github.PhilJay:MPAndroidChart:v2.0.9'

edited Aug 7, 2017 at 7:48

answered Jul 18, 2017 at 13:44

Lutaaya Huzaifah Idris

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