Crash in com.esri.arcgisruntime.internal.jni.CoreMapView.nativeLocationToScreen

Question

Good afternoon,

We have an app, which uses com.esri.arcgisruntime:arcgis-android:100.15.0. It is published in Google Play.

Google Play console tells that we have quite a lot of crashes here:

Exception com.esri.arcgisruntime.ArcGISRuntimeException: Null pointer.: map_point.get_spatial_reference()
  at com.esri.arcgisruntime.internal.jni.CoreMapView.nativeLocationToScreen
  at com.esri.arcgisruntime.internal.jni.CoreMapView.a (SourceFile:8)
  at com.esri.arcgisruntime.internal.mapping.view.p.a (SourceFile:31)
  at com.esri.arcgisruntime.mapping.view.MapView.locationToScreen (SourceFile:5)
  at com.esri.arcgisruntime.mapping.view.Callout$d.onLayout (SourceFile:8)
  at android.view.View.layout (View.java:24958)
  at android.view.ViewGroup.layout (ViewGroup.java:6784)
  at com.esri.arcgisruntime.mapping.view.MapView.onLayout (SourceFile:8)
  at android.view.View.layout (View.java:24958)
  at android.view.ViewGroup.layout (ViewGroup.java:6784)
  at android.widget.FrameLayout.layoutChildren (FrameLayout.java:332)
  at android.widget.FrameLayout.onLayout (FrameLayout.java:270)
  at android.view.View.layout (View.java:24958)
  at android.view.ViewGroup.layout (ViewGroup.java:6784)
  at android.widget.FrameLayout.layoutChildren (FrameLayout.java:332)
  at android.widget.FrameLayout.onLayout (FrameLayout.java:270)
  at android.view.View.layout (View.java:24958)
  at android.view.ViewGroup.layout (ViewGroup.java:6784)
  at androidx.drawerlayout.widget.DrawerLayout.onLayout (DrawerLayout.java:1263)
  at android.view.View.layout (View.java:24958)
  at android.view.ViewGroup.layout (ViewGroup.java:6784)
  at android.widget.FrameLayout.layoutChildren (FrameLayout.java:332)
  at android.widget.FrameLayout.onLayout (FrameLayout.java:270)
  at android.view.View.layout (View.java:24958)
  at android.view.ViewGroup.layout (ViewGroup.java:6784)
  at androidx.appcompat.widget.ActionBarOverlayLayout.onLayout (ActionBarOverlayLayout.java:536)
  at android.view.View.layout (View.java:24958)
  at android.view.ViewGroup.layout (ViewGroup.java:6784)
  at android.widget.FrameLayout.layoutChildren (FrameLayout.java:332)
  at android.widget.FrameLayout.onLayout (FrameLayout.java:270)
  at android.view.View.layout (View.java:24958)
  at android.view.ViewGroup.layout (ViewGroup.java:6784)
  at android.widget.LinearLayout.setChildFrame (LinearLayout.java:1829)
  at android.widget.LinearLayout.layoutVertical (LinearLayout.java:1673)
  at android.widget.LinearLayout.onLayout (LinearLayout.java:1582)
  at android.view.View.layout (View.java:24958)
  at android.view.ViewGroup.layout (ViewGroup.java:6784)
  at android.widget.FrameLayout.layoutChildren (FrameLayout.java:332)
  at android.widget.FrameLayout.onLayout (FrameLayout.java:270)
  at com.android.internal.policy.DecorView.onLayout (DecorView.java:1418)
  at android.view.View.layout (View.java:24958)
  at android.view.ViewGroup.layout (ViewGroup.java:6784)
  at android.view.ViewRootImpl.performLayout (ViewRootImpl.java:4787)
  at android.view.ViewRootImpl.performTraversals (ViewRootImpl.java:4115)
  at android.view.ViewRootImpl.doTraversal (ViewRootImpl.java:2991)
  at android.view.ViewRootImpl$TraversalRunnable.run (ViewRootImpl.java:10665)
  at android.view.Choreographer$CallbackRecord.run (Choreographer.java:1301)
  at android.view.Choreographer$CallbackRecord.run (Choreographer.java:1309)
  at android.view.Choreographer.doCallbacks (Choreographer.java:923)
  at android.view.Choreographer.doFrame (Choreographer.java:852)
  at android.view.Choreographer$FrameDisplayEventReceiver.run (Choreographer.java:1283)
  at android.os.Handler.handleCallback (Handler.java:942)
  at android.os.Handler.dispatchMessage (Handler.java:99)
  at android.os.Looper.loopOnce (Looper.java:226)
  at android.os.Looper.loop (Looper.java:313)
  at android.app.ActivityThread.main (ActivityThread.java:8741)
  at java.lang.reflect.Method.invoke
  at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:571)
  at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:1067)

Most of these crashes occur in "POCO vayu" device. Can you elaborate what to do? How to debug that if it happens in some internal SDK module IMHO?

D_R_ · Answer

Thanks! I added some "ifs" in my code... If no point or no point's spatial reference -> don't show callout.

It will take some weeks or even months to see if we are rid of this crash 🙂

It is hard to debug our callout as geometry for it is generated from server-side data using Geometry.fromJson().

RamaChintapalli · Answer

Hi,
From the stacktrace it appears the exception is coming from the Callout code. Internally the Callout does call MapView.locationToScreen.  Can you check if the location being set on the Callout has the required spatial reference?

Thanks
Rama

D_R_ · Answer

Hmm... I am not sure if I can paste big chunks of my code, but map's initialization looks like this:

var map: ArcGISMap? = null
// ... Some other stuff...
map = ArcGISMap()
val envelope = Envelope(
	306520.146,
	5973291.05,
	680103.277,
	6257813.452,
	SpatialReference.create(3346)
)
map?.initialViewpoint = Viewpoint(envelope)
map?.minScale = 3000000.0
map?.addDoneLoadingListener {
	try {
		if (map?.loadStatus == LoadStatus.LOADED) {
			mapView?.map = map
			mapView?.visibility = View.VISIBLE
			// ...
		} else {
			// ...
		}
	} catch (e: Exception) {
		// ...
	}
}
val layer = ArcGISTiledLayer("our_service_url")
layer.addDoneLoadingListener {
	map?.basemap?.baseLayers?.add(layer)
	if (map?.loadStatus == LoadStatus.NOT_LOADED) {
		map?.loadAsync()
	}
}