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PhilJay / MPAndroidChart

A powerful 🚀 Android chart view / graph view library, supporting line- bar- pie- radar- bubble- and candlestick charts as well as scaling, panning and animations.
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Caused by: java.lang.NullPointerException: Attempt to read from field 'float com.github.mikephil.charting.components.LegendEntry.formSize' on a null object reference #4631

Open jiaoheyan opened 5 years ago

jiaoheyan commented 5 years ago

Caused by: java.lang.NullPointerException: Attempt to read from field 'float com.github.mikephil.charting.components.LegendEntry.formSize' on a null object reference at com.github.mikephil.charting.components.Legend.getMaximumEntryWidth(Legend.java:249) at com.github.mikephil.charting.components.Legend.calculateDimensions(Legend.java:867) at com.github.mikephil.charting.renderer.LegendRenderer.computeLegend(LegendRenderer.java:220) at com.github.mikephil.charting.charts.BarLineChartBase.notifyDataSetChanged(BarLineChartBase.java:335) at com.github.mikephil.charting.charts.Chart.onSizeChanged(Chart.java:1689) at com.github.mikephil.charting.charts.BarLineChartBase.onSizeChanged(BarLineChartBase.java:1640) at android.view.View.sizeChange(View.java:17975) at android.view.View.setFrame(View.java:17937) at android.view.View.layout(View.java:17829) at android.view.ViewGroup.layout(ViewGroup.java:5754) at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1982) at android.widget.LinearLayout.layoutHorizontal(LinearLayout.java:1971) at android.widget.LinearLayout.onLayout(LinearLayout.java:1737) at android.view.View.layout(View.java:17838) at android.view.ViewGroup.layout(ViewGroup.java:5754) at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1982) at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1826) at android.widget.LinearLayout.onLayout(LinearLayout.java:1735) at android.view.View.layout(View.java:17838) at android.view.ViewGroup.layout(ViewGroup.java:5754) at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1982) at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1826) at android.widget.LinearLayout.onLayout(LinearLayout.java:1735) at android.view.View.layout(View.java:17838) at android.view.ViewGroup.layout(ViewGroup.java:5754) at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1982) at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1826) at android.widget.LinearLayout.onLayout(LinearLayout.java:1735) at android.view.View.layout(View.java:17838) at android.view.ViewGroup.layout(ViewGroup.java:5754) at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1982) at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1826) at android.widget.LinearLayout.onLayout(LinearLayout.java:1735) at android.view.View.layout(View.java:17838) at android.view.ViewGroup.layout(ViewGroup.java:5754) at android.widget.FrameLayout.layoutChildren(FrameLayout.java:383) at android.widget.FrameLayout.onLayout(FrameLayout.java:321) at android.support.v4.widget.NestedScrollView.onLayout(NestedScrollView.java:1670) at android.view.View.layout(View.java:17838) at android.view.ViewGroup.layout(ViewGroup.java:5754) at android.widget.RelativeLayout.onLayout(RelativeLayout.java:1189) at android.view.View.layout(View.java:17838) at android.view.ViewGroup.layout(ViewGroup.java:5754) at android.widget.FrameLayout.layoutChildren(FrameLayout.java:383) at android.widget.FrameLayout.onLayout(FrameLayout.java:321) at android.view.View.layout(View.java:17838) at android.view.ViewGroup.layout(ViewGroup.java:5754) at android.support.v4.widget.DrawerLayout.onLayout(DrawerLayout.java:1172) at android.view.View.layout(View.java:17838) at android.view.ViewGroup.layout(ViewGroup.java:5754) at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1982) at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1826) at android.widget.LinearLayout.onLayout(LinearLayout.java:1735) at android.view.View.layout(View.java:17838) at android.view.ViewGroup.layout(ViewGroup.java:5754) at android.widget.FrameLayout.layoutChildren(FrameLayout.java:383) at android.widget.FrameLayout.onLayout(FrameLayout.java:321) at android.view.View.layout(View.java:17838) at android.view.ViewGroup.layout(ViewGroup.java:5754) at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1982) at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1826) at android.widget.LinearLayout.onLayout(LinearLayout.java:1735) at android.view.View.layout(View.java:17838) at android.view.ViewGroup.layout(ViewGroup.java:5754) at android.widget.FrameLayout.layoutChildren(FrameLayout.java:383) at android.widget.FrameLayout.onLayout(FrameLayout.java:321) at android.view.View.layout(View.java:17838) at android.view.ViewGroup.layout(ViewGroup.java:5754) at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1982) at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1826) at android.widget.LinearLayout.onLayout(LinearLayout.java:1735) at android.view.View.layout(View.java:17838) at android.view.ViewGroup.layout(ViewGroup.java:5754) at android.widget.FrameLayout.layoutChildren(FrameLayout.java:383) at android.widget.FrameLayout.onLayout(FrameLayout.java:321) at com.android.internal.policy.DecorView.onLayout(DecorView.java:751) at android.view.View.layout(View.java:17838) at android.view.ViewGroup.layout(ViewGroup.java:5754) at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2711) at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2384) at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1462) at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6965) at android.view.Choreographer$CallbackRecord.run(Choreographer.java:907) at android.view.Choreographer.doCallbacks(Choreographer.java:709) at android.view.Choreographer.doFrame(Choreographer.java:644) at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:893) at android.os.Handler.handleCallback(Handler.java:836) at android.os.Handler.dispatchMessage(Handler.java:103) at android.os.Looper.loop(Looper.java:203) at android.app.ActivityThread.main(ActivityThread.java:6251) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1063) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:924) java.lang.NullPointerException: Attempt to read from field 'float com

FangWW commented 4 years ago

use com.github.mikephil.charting.charts.BubbleChart

java.lang.NullPointerException

Attempt to read from field 'float com.github.mikephil.charting.components.LegendEntry.formSize' on a null object reference 1 com.github.mikephil.charting.components.Legend.float getMaximumEntryWidth(android.graphics.Paint)(Unknown Source:16) 2 com.github.mikephil.charting.components.Legend.void calculateDimensions(android.graphics.Paint,com.github.mikephil.charting.utils.ViewPortHandler)(Unknown Source:39) 3 com.github.mikephil.charting.renderer.LegendRenderer.void computeLegend(com.github.mikephil.charting.data.ChartData)(Unknown Source:489) 4 com.github.mikephil.charting.charts.BarLineChartBase.void notifyDataSetChanged()(Unknown Source:99) 5 com.github.mikephil.charting.charts.Chart.void onSizeChanged(int,int,int,int)(Unknown Source:91) 6 com.github.mikephil.charting.charts.BarLineChartBase.void onSizeChanged(int,int,int,int)(Unknown Source:46)

4sskick commented 3 years ago

did it solved? please tell me what's wrong & how to solve it