Hi dev! Is it possible to make a bars do not lay on labels? It covers labels now. I was playing with opacity, but it seems that bars are forced to be always solid.

I have a line chart in the background. But, it prevents me from clicking anything which is over the LineChartView. I tried even setting an overlapping dummy view. Still clicking behavior on that region is not working. How can I stop LineChartView from handling clicks?

I add to dependencies in build.gradle this compile 'com.db.williamchart:1. 7.0' but I get such message: How can i handle this problem? Btw same problem appears on some others libs. I'm using AndroidStudio 1.1.0 Please help me. Thank You

I have IndexOutOfBoundsException when I'm trying add several Points(" ", 0) to lineSet and trying to show LineChartView

java.lang.IndexOutOfBoundsException: Invalid index 1, size is 1 at java.util.ArrayList.throwIndexOutOfBoundsException(ArrayList.java:251) at java.util.ArrayList.get(ArrayList.java:304) at com.db.chart.view.YController.parseYPos(YController.java:282) at com.db.chart.view.ChartView$1.onPreDraw(ChartView.java:135) at android.view.ViewTreeObserver.dispatchOnPreDraw(ViewTreeObserver.java:671) at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1818) at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:998) at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:4212) at android.view.Choreographer$CallbackRecord.run(Choreographer.java:725) at android.view.Choreographer.doCallbacks(Choreographer.java:555) at android.view.Choreographer.doFrame(Choreographer.java:525) at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:711) at android.os.Handler.handleCallback(Handler.java:615) at android.os.Handler.dispatchMessage(Handler.java:92) at android.os.Looper.loop(Looper.java:137) at android.app.ActivityThread.main(ActivityThread.java:4745) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:511) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) at dalvik.system.NativeStart.main(Native Method)

I tried to put the chart from the example app into my own app, but it crashes as soon as I open the fragment that the chart is on. The exception: kotlin.UninitializedPropertyAccessException: lateinit property data has not been initialized at com.db.williamchart.renderer.BarChartRenderer.preDraw(BarChartRenderer.kt:67) at com.db.williamchart.view.BarChartView$$special$$inlined$doOnPreDraw$1.onPreDraw(View.kt:348) at android.view.ViewTreeObserver.dispatchOnPreDraw(ViewTreeObserver.java:977) at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2337) at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1386) at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6733) at android.view.Choreographer$CallbackRecord.run(Choreographer.java:911) at android.view.Choreographer.doCallbacks(Choreographer.java:723) at android.view.Choreographer.doFrame(Choreographer.java:658) at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:897) at android.os.Handler.handleCallback(Handler.java:789) at android.os.Handler.dispatchMessage(Handler.java:98) at android.os.Looper.loop(Looper.java:164) at android.app.ActivityThread.main(ActivityThread.java:6541) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767) My relevant code: @Override public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) { super.onViewCreated(view, savedInstanceState); LinkedHashMap<String, Float> lineMap = new LinkedHashMap<>(); lineMap.put("label1", 5f); lineMap.put("label2", 4.5f); lineMap.put("label3", 4.7f); lineMap.put("label4", 3.5f); lineMap.put("label5", 3.6f); lineMap.put("label6", 7.5f); lineMap.put("label7", 7.5f); lineMap.put("label8", 10f); lineMap.put("label9", 5f); lineMap.put("label10", 6.5f); lineMap.put("label11", 3f); lineMap.put("label12", 4f); int[] fillColors = {Color.parseColor("#81FFFFFF"), Color.TRANSPARENT}; binding.lineChart.setGradientFillColors(fillColors); binding.lineChart.getAnimation().setDuration(1000); binding.lineChart.animate(lineMap); }

Using Line Chart i enable scroll bar using below code linechart.setHorizontalScrollBarEnabled(true); but i unable to see Scroll in Chart please help me if you have any code or method to set Scroll in Linechart the x axies values are merged not looking good i want to scroll the line chart in horizontal

Fixes #253

The following screenshot shows the change in action for the line chart (note, that the y labels are actually rounded values, I've added this to the demo code as well) and the horizontal bar chart (I've added a random "h" to the end of the label, this is not part of the demo code):

Trying to add Tooltips to StackBarChartView like ones in your previous version of example app, marked in blue here :

I'm receiveing The specified child already has a parent. You must call removeView() on the child's parent first. in tiers_battles.showTooltip(mTip, false);

Here is the code:

private void show_tiers_battles() {
        String[] labels_tiers = getResources().getStringArray(R.array.labels_tiers);

        mTip = new Tooltip(getActivity(), R.layout.stackedchart_tooltip, R.id.value);
        mTip.setVerticalAlignment(Tooltip.Alignment.TOP_BOTTOM);
        mTip.setDimensions((int) Tools.fromDpToPx(65), (int) Tools.fromDpToPx(25));
        mTip.setEnterAnimation(PropertyValuesHolder.ofFloat(View.ALPHA, 1), PropertyValuesHolder.ofFloat(View.SCALE_Y, 1f), PropertyValuesHolder.ofFloat(View.SCALE_X, 1f)).setDuration(200);
        mTip.setExitAnimation(PropertyValuesHolder.ofFloat(View.ALPHA, 0), PropertyValuesHolder.ofFloat(View.SCALE_Y, 0f), PropertyValuesHolder.ofFloat(View.SCALE_X, 0f)).setDuration(200);
        mTip.setPivotX(Tools.fromDpToPx(65) / 2);
        mTip.setPivotY(Tools.fromDpToPx(25));
        tiers_battles.setTooltips(mTip);

        tiers_battles.setBarSpacing((float) 44.0);
        tiers_battles.setYAxis(false);
        tiers_battles.setYLabels(AxisController.LabelPosition.NONE);
        tiers_battles.setBarBackgroundColor(Color.parseColor("#4D36a19b"));
        tiers_battles.setLabelsColor(Color.parseColor("#ffffff"));
        tiers_battles.setAxisColor(Color.parseColor("#A4A4A4"));

        BarSet dataset = new BarSet(labels_tiers, chartsArrays.getTiers_Battles())
                .setColor(Color.parseColor("#36a19b"));
        tiers_battles.addData(dataset);

        Runnable chartOneAction = new Runnable() {
            @Override
            public void run() {
                ArrayList<Rect> areas = tiers_battles.getEntriesArea(0);
                for(int i = 0; i < areas.size(); i++) {
                    mTip.prepare(areas.get(i), chartsArrays.getTiers_Battles()[i]);
                    mTip.setEnterAnimation(PropertyValuesHolder.ofFloat(View.ALPHA, 1));
                    mTip.setExitAnimation(PropertyValuesHolder.ofFloat(View.ALPHA, 0));
                    tiers_battles.showTooltip(mTip, false);
                }
                run();
            }
        };

        Animation anim = new Animation(500)
                .setEasing(new CubicEase())
                .setAlpha(1)
                .setEndAction(chartOneAction);

        tiers_battles.show(anim);
    }

What am I doing wrong? Where would you suggest to look at first?

Thank you

I Want to update chart with new values but update isn't my solution as far as i know because array of labels are changing on every redraw. So i am initializing chart on every call but as show in image below line chart goes of canvas and it doesn't change axis values based on new values:

public class IncomeLineChart extends ChartBase {


    private final LineChartView mChart;



    private Tooltip mTip;
    private Context mContext;
    private Runnable mBaseAction;


    public IncomeLineChart(LineChartView chart, Context context) {
        super();
        mChart = chart;
        mContext = context;
    }


    @Override
    public void show(Runnable action) {
        // Tooltip
        mTip = new Tooltip(mContext, R.layout.tooltip_income, R.id.value);
        mTip.setVerticalAlignment(Tooltip.Alignment.BOTTOM_TOP);
        mTip.setDimensions((int) Tools.fromDpToPx(58), (int) Tools.fromDpToPx(25));
        mTip.setEnterAnimation(PropertyValuesHolder.ofFloat(View.ALPHA, 1),
                PropertyValuesHolder.ofFloat(View.SCALE_Y, 1f),
                PropertyValuesHolder.ofFloat(View.SCALE_X, 1f)).setDuration(200);
        mTip.setExitAnimation(PropertyValuesHolder.ofFloat(View.ALPHA, 0),
                PropertyValuesHolder.ofFloat(View.SCALE_Y, 0f),
                PropertyValuesHolder.ofFloat(View.SCALE_X, 0f)).setDuration(200);
        mTip.setPivotX(Tools.fromDpToPx(65) / 2);
        mTip.setPivotY(Tools.fromDpToPx(25));
        mChart.setTooltips(mTip);

        LineSet dataSet = new LineSet(mLabels, mValues);
        dataSet.setColor(Color.parseColor("#b3b5bb"))
                .setFill(Color.parseColor("#2d374c"))
                .setDotsColor(Color.parseColor("#ffc755"))
                .setThickness(4);
        mChart.addData(dataSet);
        // Chart
        mChart.setBorderSpacing(Tools.fromDpToPx(15))
                //.setAxisBorderValues(0, 20)
                .setYLabels(AxisRenderer.LabelPosition.NONE)
                .setLabelsColor(Color.parseColor("#6a84c3"))
                .setXAxis(false)
                .setYAxis(false);

        mBaseAction = action;
        Runnable chartAction = new Runnable() {
            @Override
            public void run() {
                mBaseAction.run();
            }
        };
        Animation anim = new Animation().setEasing(new BounceInterpolator()).setEndAction(chartAction);
        mChart.show(anim);
    }

    @Override
    public void update(String[] labels, float[] values) {
        super.update(labels,values);
        mChart.dismissAllTooltips();
        mChart.updateValues(0, mValues);
        mChart.getChartAnimation().setEndAction(mBaseAction);
        mChart.notifyDataUpdate();
    }


    @Override
    public void dismiss(Runnable action) {
        super.dismiss(action);
        mChart.dismissAllTooltips();
        mChart.dismiss(new Animation().setEasing(new BounceInterpolator()).setEndAction(action));
    }
}

Hi.

some of my app users got this error and I can't reproduce it to solve the problem. can you give me any hint?

java.lang.IllegalArgumentException: text cannot be null
	at android.graphics.Paint.measureText(Paint.java:1957)
	at com.db.chart.view.XController.measureInnerChartRight(SourceFile:109)
	at com.db.chart.view.XController.measure(SourceFile:46)
	at com.db.chart.view.ChartView$1.onPreDraw(SourceFile:179)
	at android.view.ViewTreeObserver.dispatchOnPreDraw(ViewTreeObserver.java:1014)
	at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2510)
	at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1437)
	at android.view.ViewRootImpl$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'm using Android Studio 1.1.0. I've been having some issues with building my project with this library. I added my ANDROID_HOME environment variable using the terminal in Android Studio.

set ANDROID_HOME=C:\...\Android\android-sdk

So using the terminal I navigate to C:...\WilliamChart-master which contains the library source code I downloaded from github (the root directory where the gradlew file is).

And I managed to do installDebug properly.

gradlew installDebug

But install doesn't seem to work

gradlew install

I get the following errors:

2 errors                                
58 warnings                             
:library:androidJavadocs FAILED         

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':library:androidJavadocs'.
> Javadoc generation failed. Generated Javadoc options file (useful for troubleshooting): 'C:\...\WilliamChart-master\library\build\tmp\androidJavadocs\javadoc.options'

* Try:       
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

BUILD FAILED 

Here's my build.gradle (app)

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile 'com.android.support:appcompat-v7:21.0.3'
    compile 'com.doomonafireball.betterpickers:library:1.5.3'
    compile 'com.db.williamchart:library:1.7.0'
}

Here's my build.gradle (Project)

buildscript {
    repositories {
        jcenter()
        mavenLocal()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:1.1.0'

    // NOTE: Do not place your application dependencies here; they belong
    // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        jcenter()
        mavenLocal()
    }
}

How can I set the axis of the graph starting from the center aligned? I would to like draw the graph center horizontally. but its a drawing at the bottom. can you pls solve this issue?

I'm getting this despite placing the dependencies correctly in build.gradle

com.diogobernardino.williamchart:tooltip-slider:3.10.1) com.diogobernardino.williamchart:tooltip-points:3.10.1

Failed to resolve: williamchart:williamchart:unspecified Show in Project Structure dialog Affected Modules: app

I've to switch between two data sets: a monthly one and a yearly one. How can I "clear" the chart when switching from one data set to the other?

For now the fix I found is to use chart.barsColorsList = null Any better way to do this?

Awesome library by the way!

The BarChart crashes when changing the data on runtime (if the number of datapoints is changed). This is because of the following code: On BarChartView.kt: ` if (barsColorsList == null) barsColorsList = List(frames.size) { barsColor }.toList()

        if (barsColorsList!!.size != frames.size)
            throw IllegalArgumentException("Colors provided do not match the number of datapoints.")`

If someone tries to change the data on runtime, by clicking a filter button for example, the frames.size is changed, but the barsColorsList!!.size isn't, because of the above code only checks for nullability so it doesn't update the barsColorsList.

Will submit a PR to fix this.