I get Null Pointer Exception at open ListActivity in my code but all trace is not my code.
java.lang.NullPointerException at
android.widget.AbsListView.obtainView(AbsListView.java:2606) at
android.widget.ListView.makeAndAddView(ListView.java:1840) at
android.widget.ListView.fillDown(ListView.java:681) at
android.widget.ListView.fillFromTop(ListView.java:742) at
android.widget.ListView.layoutChildren(ListView.java:1661) at
android.widget.AbsListView.onLayout(AbsListView.java:2427) at
android.view.View.layout(View.java:14938) at
android.view.ViewGroup.layout(ViewGroup.java:4601) at
android.widget.RelativeLayout.onLayout(RelativeLayout.java:1021) at
android.view.View.layout(View.java:14938) at
android.view.ViewGroup.layout(ViewGroup.java:4601) at
android.widget.FrameLayout.onLayout(FrameLayout.java:448) at
android.view.View.layout(View.java:14938) at
android.view.ViewGroup.layout(ViewGroup.java:4601) at
android.widget.FrameLayout.onLayout(FrameLayout.java:448) at
android.view.View.layout(View.java:14938) at
android.view.ViewGroup.layout(ViewGroup.java:4601) at
android.widget.LinearLayout.setChildFrame(LinearLayout.java:1694) at
android.widget.LinearLayout.layoutVertical(LinearLayout.java:1552) at
android.widget.LinearLayout.onLayout(LinearLayout.java:1465) at
android.view.View.layout(View.java:14938) at
android.view.ViewGroup.layout(ViewGroup.java:4601) at
android.widget.FrameLayout.onLayout(FrameLayout.java:448) at
android.view.View.layout(View.java:14938) at
android.view.ViewGroup.layout(ViewGroup.java:4601) at
android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2212) at
android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2026)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1236) at
android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5160)
at
android.view.Choreographer$CallbackRecord.run(Choreographer.java:791)
at android.view.Choreographer.doCallbacks(Choreographer.java:591) at
android.view.Choreographer.doFrame(Choreographer.java:561) at
android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:777)
at android.os.Handler.handleCallback(Handler.java:725) at
android.os.Handler.dispatchMessage(Handler.java:92) at
android.os.Looper.loop(Looper.java:176) at
android.app.ActivityThread.main(ActivityThread.java:5365) at
java.lang.reflect.Method.invokeNative(Native Method) at
java.lang.reflect.Method.invoke(Method.java:511) at
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1102)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:869) at
dalvik.system.NativeStart.main(Native Method)
How I can know where the error occurs?
As #iagreen said, "Specifically, you are returning null from your getView method of your Adapter".
I was returning null in some case in custom adapter in getWiew.
Related
My Application is crashing on an GT-P5110 Android 4.2.2 Samsung Tab 2 tablet. I'm currently searching all my code but can't find where it is called. I got the error output right here.
I can't find a listview which is casting this problem. I even disabled whole parts. Anyone got an idea?
java.lang.ClassCastException: android.widget.FrameLayout$LayoutParams cannot be cast to android.widget.AbsListView$LayoutParams
at android.widget.ListView.setupChild(ListView.java:1872)
at android.widget.ListView.makeAndAddView(ListView.java:1841)
at android.widget.ListView.fillDown(ListView.java:681)
at android.widget.ListView.fillFromTop(ListView.java:742)
at android.widget.ListView.layoutChildren(ListView.java:1645)
at android.widget.AbsListView.onLayout(AbsListView.java:2511)
at android.view.View.layout(View.java:14694)
at android.view.ViewGroup.layout(ViewGroup.java:4491)
at android.widget.RelativeLayout.onLayout(RelativeLayout.java:1021)
at android.view.View.layout(View.java:14694)
at android.view.ViewGroup.layout(ViewGroup.java:4491)
at android.support.v4.widget.DrawerLayout.onLayout(DrawerLayout.java:931)
at android.view.View.layout(View.java:14694)
at android.view.ViewGroup.layout(ViewGroup.java:4491)
at android.widget.FrameLayout.onLayout(FrameLayout.java:448)
at android.view.View.layout(View.java:14694)
at android.view.ViewGroup.layout(ViewGroup.java:4491)
at android.support.v7.internal.widget.ActionBarOverlayLayout.onLayout(ActionBarOverlayLayout.java:493)
at android.view.View.layout(View.java:14694)
at android.view.ViewGroup.layout(ViewGroup.java:4491)
at android.widget.FrameLayout.onLayout(FrameLayout.java:448)
at android.view.View.layout(View.java:14694)
at android.view.ViewGroup.layout(ViewGroup.java:4491)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1669)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1527)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1440)
at android.view.View.layout(View.java:14694)
at android.view.ViewGroup.layout(ViewGroup.java:4491)
at android.widget.FrameLayout.onLayout(FrameLayout.java:448)
at android.view.View.layout(View.java:14694)
at android.view.ViewGroup.layout(ViewGroup.java:4491)
at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2200)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2014)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1227)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:4995)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:791)
at android.view.Choreographer.doCallbacks(Choreographer.java:591)
at android.view.Choreographer.doFrame(Choreographer.java:561)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:777)
at android.os.Handler.handleCallback(Handler.java:725)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:175)
at android.app.ActivityThread.main(ActivityThread.java:5279)
at java.lang.reflect.Method.invokeNative(Method.java)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1102)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:869)
at dalvik.system.NativeStart.main(NativeStart.java)
Why VideoView force closes on Micromax Canvas magnus ?
java.lang.StringIndexOutOfBoundsException: length=11; regionStart=0;
regionLength=-1 at java.lang.String.startEndAndLength(String.java:583)
at java.lang.String.substring(String.java:1464) at
android.widget.VideoView.openVideo(VideoView.java:407) at
android.widget.VideoView$6.surfaceCreated(VideoView.java:730) at
android.view.SurfaceView.updateWindow(SurfaceView.java:606) at
android.view.SurfaceView.access$000(SurfaceView.java:88) at
android.view.SurfaceView$3.onPreDraw(SurfaceView.java:183) at
android.view.ViewTreeObserver.dispatchOnPreDraw(ViewTreeObserver.java:692)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2123)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1139) at
android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:4879)
at
android.view.Choreographer$CallbackRecord.run(Choreographer.java:776)
at android.view.Choreographer.doCallbacks(Choreographer.java:579) at
android.view.Choreographer.doFrame(Choreographer.java:548) at
android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:762)
at android.os.Handler.handleCallback(Handler.java:725) at
android.os.Handler.dispatchMessage(Handler.java:92) at
android.os.Looper.loop(Looper.java:153) at
android.app.ActivityThread.main(ActivityThread.java:5297) 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:833)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600) at
dalvik.system.NativeStart.main(Native Method)
When I try to create a new Typeface using this piece of code on my Product class (custom class, has getView() method to populate a ListView)
Typeface tf = Typeface.createFromAsset(context.getApplicationContext().getAssets(), "fonts/cambriab.ttf");
I get the following stacktrace:
E/AndroidRuntime: FATAL EXCEPTION: main
java.lang.RuntimeException: native typeface cannot be made
at android.graphics.Typeface.<init>(Typeface.java:175)
at android.graphics.Typeface.createFromAsset(Typeface.java:149)
at com.darkraven.shoppinglist.Category.getView(Category.java:133)
at com.darkraven.shoppinglist.ProductListAdapter.getView(ProductListAdapter.java:40)
at android.widget.AbsListView.obtainView(AbsListView.java:2179)
at android.widget.ListView.makeAndAddView(ListView.java:1840)
at android.widget.ListView.fillDown(ListView.java:675)
at android.widget.ListView.fillFromTop(ListView.java:736)
at android.widget.ListView.layoutChildren(ListView.java:1641)
at android.widget.AbsListView.onLayout(AbsListView.java:2014)
at android.view.View.layout(View.java:14290)
at android.view.ViewGroup.layout(ViewGroup.java:4562)
at android.widget.RelativeLayout.onLayout(RelativeLayout.java:1076)
at android.view.View.layout(View.java:14290)
at android.view.ViewGroup.layout(ViewGroup.java:4562)
at android.widget.FrameLayout.onLayout(FrameLayout.java:448)
at android.view.View.layout(View.java:14290)
at android.view.ViewGroup.layout(ViewGroup.java:4562)
at com.android.internal.widget.ActionBarOverlayLayout.onLayout(ActionBarOverlayLayout.java:349)
at android.view.View.layout(View.java:14290)
at android.view.ViewGroup.layout(ViewGroup.java:4562)
at android.widget.FrameLayout.onLayout(FrameLayout.java:448)
at android.view.View.layout(View.java:14290)
at android.view.ViewGroup.layout(ViewGroup.java:4562)
at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:1976)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1730)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1004)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5481)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:749)
at android.view.Choreographer.doCallbacks(Choreographer.java:562)
at android.view.Choreographer.doFrame(Choreographer.java:532)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:735)
at android.os.Handler.handleCallback(Handler.java:730)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5124)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
at dalvik.system.NativeStart.main(Native Method)
context is the main Activity.
If you have your ttf file placed in fonts folder in the assets , even the below code will work, or I can say it works for me ::
Typeface helveticaMedCond = Typefaces.get(getApplicationContext(), "fonts/Helvetica 67 Medium #2BD9AB.TTF");
before that cross verify whether you are using the same font name that is placed in the fonts folder or not.
A stack trace below
Usually doesn't happen, but happens here and there to some users.
On Android 2.3.3 the exception happens on BoringLayout.isBoring:240
On Android 4.1.2 the same, line 260
Any help would be appreciated. :-)
java.lang.NullPointerException
at android.text.BoringLayout.isBoring(BoringLayout.java:260)
at android.widget.TextView.onMeasure(TextView.java:6322)
at android.view.View.measure(View.java:15473)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5056)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1396)
at android.widget.LinearLayout.measureHorizontal(LinearLayout.java:1038)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:576)
at android.view.View.measure(View.java:15473)
at android.widget.LinearLayout.measureHorizontal(LinearLayout.java:1223)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:576)
at android.view.View.measure(View.java:15473)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5056)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1396)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:681)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:574)
at android.view.View.measure(View.java:15473)
at android.widget.ListView.setupChild(ListView.java:1853)
at android.widget.ListView.makeAndAddView(ListView.java:1778)
at android.widget.ListView.fillDown(ListView.java:678)
at android.widget.ListView.fillFromTop(ListView.java:739)
at android.widget.ListView.layoutChildren(ListView.java:1614)
at android.widget.AbsListView.onLayout(AbsListView.java:2296)
at android.view.View.layout(View.java:14055)
at android.view.ViewGroup.layout(ViewGroup.java:4604)
at android.widget.RelativeLayout.onLayout(RelativeLayout.java:948)
at android.view.View.layout(View.java:14055)
at android.view.ViewGroup.layout(ViewGroup.java:4604)
at android.widget.FrameLayout.onLayout(FrameLayout.java:448)
at android.view.View.layout(View.java:14055)
at android.view.ViewGroup.layout(ViewGroup.java:4604)
at android.widget.FrameLayout.onLayout(FrameLayout.java:448)
at android.view.View.layout(View.java:14055)
at android.view.ViewGroup.layout(ViewGroup.java:4604)
at android.support.v4.view.ViewPager.onLayout(ViewPager.java:1589)
at android.view.View.layout(View.java:14055)
at android.view.ViewGroup.layout(ViewGroup.java:4604)
at android.widget.RelativeLayout.onLayout(RelativeLayout.java:948)
at android.view.View.layout(View.java:14055)
at android.view.ViewGroup.layout(ViewGroup.java:4604)
at android.widget.FrameLayout.onLayout(FrameLayout.java:448)
at android.view.View.layout(View.java:14055)
at android.view.ViewGroup.layout(ViewGroup.java:4604)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1655)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1513)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1426)
at android.view.View.layout(View.java:14055)
at android.view.ViewGroup.layout(ViewGroup.java:4604)
at android.widget.FrameLayout.onLayout(FrameLayout.java:448)
at android.view.View.layout(View.java:14055)
at android.view.ViewGroup.layout(ViewGroup.java:4604)
at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:1992)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1813)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1112)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:4472)
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:4898)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1006)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:773)
at dalvik.system.NativeStart.main(Native Method)
Ok found it.
I'm not deleting the question because maybe it would help someone some day.
So my mistake was:
I have extended TextView to create a class that manipulates the text, and look depending on the value set.
My error was that in some cases I chose not to set the text, and simply called 'return'. In those cases the 'text' was null, which caused the above NPE.
Lesson: If you override setText, a value MUST be set when it is called.
This is one of those points in time I remember 'design by contract', preconditions, invariants etc. This could have been helpful here.
To all those that tried to help, you have my thanks.
#Deylan - special thanks, you were the one that gave me the nudge in the right direction.
I have this exception:
java.lang.NullPointerException
at android.webkit.WebViewClassic.requestFocus(WebViewClassic.java:10003)
at android.webkit.WebView.requestFocus(WebView.java:2133)
at android.view.ViewGroup.onRequestFocusInDescendants(ViewGroup.java:2382)
at android.view.ViewGroup.requestFocus(ViewGroup.java:2338)
at android.view.ViewGroup.onRequestFocusInDescendants(ViewGroup.java:2382)
at android.view.ViewGroup.requestFocus(ViewGroup.java:2338)
at android.view.ViewGroup.onRequestFocusInDescendants(ViewGroup.java:2382)
at android.view.ViewGroup.requestFocus(ViewGroup.java:2341)
at android.view.View.requestFocus(View.java:6538)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1899)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1110)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:4472)
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:4918)
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:1004)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:771)
at dalvik.system.NativeStart.main(Native Method)
But it doesn't tell me what line it happened on or anything else. Any idea how to debug this?
Thanks,
Alex