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getHeight()' on a null object reference #65

Closed
DevMensIT opened this issue Mar 19, 2020 · 16 comments
Closed

getHeight()' on a null object reference #65

DevMensIT opened this issue Mar 19, 2020 · 16 comments

Comments

@DevMensIT
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Hey there i want to know what is limit of graph? i have more than 5k records with nodes.
i need help to solve this.

java.lang.NullPointerException: Attempt to invoke virtual method 'int de.blox.graphview.Size.getHeight()' on a null object reference
at de.blox.graphview.Node.getHeight(Node.java:45)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:69)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:89)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:89)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:89)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:89)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:89)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:89)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:89)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:89)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:89)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:89)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:89)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:89)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.run(BuchheimWalkerAlgorithm.java:345)
at de.blox.graphview.BaseGraphAdapter.notifySizeChanged(BaseGraphAdapter.java:41)
at de.blox.graphview.GraphNodeContainerView.onMeasure(GraphNodeContainerView.java:367)
at android.view.View.measure(View.java:24549)
at android.view.ViewGroup.measureChild(ViewGroup.java:6799)
at android.view.ViewGroup.measureChildren(ViewGroup.java:6776)
at com.otaliastudios.zoom.ZoomLayout.onMeasure(ZoomLayout.java:104)
at android.view.View.measure(View.java:24549)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6828)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1552)
at android.widget.LinearLayout.measureHorizontal(LinearLayout.java:1204)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:723)
at android.view.View.measure(View.java:24549)
at androidx.constraintlayout.widget.ConstraintLayout.internalMeasureChildren(ConstraintLayout.java:1227)
at androidx.constraintlayout.widget.ConstraintLayout.onMeasure(ConstraintLayout.java:1572)
at android.view.View.measure(View.java:24549)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6828)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
at androidx.appcompat.widget.ContentFrameLayout.onMeasure(ContentFrameLayout.java:143)
at android.view.View.measure(View.java:24549)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6828)
at androidx.appcompat.widget.ActionBarOverlayLayout.onMeasure(ActionBarOverlayLayout.java:401)
at android.view.View.measure(View.java:24549)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6828)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
at android.view.View.measure(View.java:24549)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6828)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1552)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:842)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:721)
at android.view.View.measure(View.java:24549)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6828)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
at com.android.internal.policy.DecorView.onMeasure(DecorView.java:742)
at android.view.View.measure(View.java:24549)
at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:3007)
at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1834)
2020-03-19 23:40:57.893 27200-27200/com.kishanmaniar.treeview E/AndroidRuntime: at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2123)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1722)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:7605)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:1029)
at android.view.Choreographer.doCallbacks(Choreographer.java:852)
at android.view.Choreographer.doFrame(Choreographer.java:787)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:1014)
at android.os.Handler.handleCallback(Handler.java:883)
at android.os.Handler.dispatchMessage(Handler.java:100)
at android.os.Looper.loop(Looper.java:214)
at android.app.ActivityThread.main(ActivityThread.java:7403)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:935)
@GregorBlock
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Contributor

Hi, so 5k nodes are definitely too much for GraphView as it is not yet optimized for it. Which version do you use? Actually there should be no npe at this place.

@DevMensIT
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Author

is there any alternative option ? what max node size ? i'm really looking for this but now i'm stuck here
version using : 0.4.2
really i need your help.

@GregorBlock
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Contributor

Well there is already a newer version 0.6.1. I would suggest you try again with an update. Unfortunately it is not possible to draw so many nodes at the same time with the current approach.

@DevMensIT
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Author

okay I'll try after update and notify you. but what's max limit or the graph ?

@GregorBlock
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Contributor

In theory, there is no limit. It depends on how complex you design the nodes View and the runtime of the chosen algorithm.

@DevMensIT
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hey i updated version and now im getting this error.
algorithm : BuchheimWalkerAlgorithm

java.lang.StackOverflowError: stack size 8192KB
at java.util.ArrayList.grow(ArrayList.java:275)
at java.util.ArrayList.ensureExplicitCapacity(ArrayList.java:249)
at java.util.ArrayList.ensureCapacityInternal(ArrayList.java:241)
at java.util.ArrayList.add(ArrayList.java:467)
at de.blox.graphview.Graph.predecessorsOf(Graph.java:282)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.hasLeftSibling(BuchheimWalkerAlgorithm.java:312)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:78)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
2020-03-21 20:24:50.282 24823-24823/com.kishanmaniar.treeview E/AndroidRuntime: at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
2020-03-21 20:24:50.331 24823-24836/com.kishanmaniar.treeview I/maniar.treevie: Background young concurrent copying GC freed 60390(2536KB) AllocSpace objects, 1(804KB) LOS objects, 0% free, 18MB/18MB, paused 89us total 105.910ms
2020-03-21 20:24:50.522 24823-24823/com.kishanmaniar.treeview I/chatty: uid=10036(com.kishanmaniar.treeview) identical 1215 lines
2020-03-21 20:24:50.522 24823-24823/com.kishanmaniar.treeview E/AndroidRuntime: at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
2020-03-21 20:24:50.523 24823-24823/com.kishanmaniar.treeview E/AndroidRuntime: at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.firstWalk(BuchheimWalkerAlgorithm.java:90)
at de.blox.graphview.tree.BuchheimWalkerAlgorithm.run(BuchheimWalkerAlgorithm.java:363)
at de.blox.graphview.BaseGraphAdapter.notifySizeChanged(BaseGraphAdapter.java:29)
at de.blox.graphview.GraphNodeContainerView.onMeasure(GraphNodeContainerView.java:368)
at android.view.View.measure(View.java:24549)
at android.view.ViewGroup.measureChild(ViewGroup.java:6799)
at android.view.ViewGroup.measureChildren(ViewGroup.java:6776)
at com.otaliastudios.zoom.ZoomLayout.onMeasure(ZoomLayout.kt:129)
at android.view.View.measure(View.java:24549)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6828)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1552)
at android.widget.LinearLayout.measureHorizontal(LinearLayout.java:1204)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:723)
at android.view.View.measure(View.java:24549)
at androidx.constraintlayout.widget.ConstraintLayout.internalMeasureChildren(ConstraintLayout.java:1227)
at androidx.constraintlayout.widget.ConstraintLayout.onMeasure(ConstraintLayout.java:1572)
2020-03-21 20:24:50.523 24823-24823/com.kishanmaniar.treeview E/AndroidRuntime: at android.view.View.measure(View.java:24549)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6828)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
at androidx.appcompat.widget.ContentFrameLayout.onMeasure(ContentFrameLayout.java:143)
at android.view.View.measure(View.java:24549)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6828)
at androidx.appcompat.widget.ActionBarOverlayLayout.onMeasure(ActionBarOverlayLayout.java:401)
at android.view.View.measure(View.java:24549)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6828)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
at android.view.View.measure(View.java:24549)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6828)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1552)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:842)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:721)
at android.view.View.measure(View.java:24549)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6828)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
at com.android.internal.policy.DecorView.onMeasure(DecorView.java:742)
at android.view.View.measure(View.java:24549)
at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:3007)
at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1834)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2123)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1722)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:7605)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:1029)
at android.view.Choreographer.doCallbacks(Choreographer.java:852)
at android.view.Choreographer.doFrame(Choreographer.java:787)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:1014)
at android.os.Handler.handleCallback(Handler.java:883)
at android.os.Handler.dispatchMessage(Handler.java:100)
at android.os.Looper.loop(Looper.java:214)
at android.app.ActivityThread.main(ActivityThread.java:7403)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:935)

@GregorBlock
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Stackoverflow can be an indicator that you have a loop in your structure. It could be something else without having more information.

@DevMensIT
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yes. i have loop and I'm using hashmap to store nodes.
please help me to find a way.

@GregorBlock
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BuchheimWalker does not support loops because it was developed for tree structures. You could use the Sugiyama for this.

@DevMensIT
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I'm not using algorithm inside loop but i used loop for create nodes only. algorithm is outside the loop.

i will check that and will notify you. thank you.

@GregorBlock
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No, I meant a loop in your data structure,

for example: a -> b -> c -> a (loop here)

@DevMensIT
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DevMensIT commented Mar 23, 2020 •
edited

actually my first loop here

 final Graph graph = new Graph();
        loop(){
final Node node1 = new Node(getNodeText());
}

first loop to create all nodes.

  1. Loop for create .addEdge
loop(){
graph.addEdge(node1, node2);
}

@DennisBlock
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@GregorBlock didn't mean your loop statements. He is talking about a loop or cycle (in graph theory) in your graph.

@DevMensIT
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i will try Sugiyama. hope it will help.

@DevMensIT
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i tried to use SugiyamaAlgorithm but everything is getting messup. checkout
Screenshot_20200326-210617

BuchheimWalker algorithm only can help me but i not able to find why its getting crash.
and my loop structure is also well.

@GregorBlock
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I'm closing this issue due to inactivity. If you have further input on the issue, don't hesitate to reopen this issue or post a new one.

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@DennisBlock @GregorBlock @DevMensIT