Android get Status Bar Height giving java.lang.ExceptionInInitializerError -
additional information (the original question below)
after following @ρяσѕρєяk advice in comments section, getting same error on file (sizenotifierrelativelayout.java) , error occurs @ line 44, super.onlayout(changed, l, t, r, b);. code file , logcat follows:
sizenotifierrelativelayout.java
package com.app.name.widgets; import android.content.context; import android.graphics.rect; import android.view.view; import android.widget.relativelayout; import com.app.name.androidutilities; public class sizenotifierrelativelayout extends relativelayout { private rect rect = new rect(); public sizenotifierrelativelayoutdelegate delegate; public abstract interface sizenotifierrelativelayoutdelegate { public abstract void onsizechanged(int keyboardheight); } public sizenotifierrelativelayout(context context) { super(context); } public sizenotifierrelativelayout(context context, android.util.attributeset attrs) { super(context, attrs); } public sizenotifierrelativelayout(context context, android.util.attributeset attrs, int defstyle) { super(context, attrs, defstyle); } @override protected void onlayout(boolean changed, int l, int t, int r, int b) { super.onlayout(changed, l, t, r, b); if (delegate != null) { view rootview = this.getrootview(); int usableviewheight = rootview.getheight() - androidutilities.statusbarheight - androidutilities.getviewinset(rootview); this.getwindowvisibledisplayframe(rect); int keyboardheight = usableviewheight - (rect.bottom - rect.top); delegate.onsizechanged(keyboardheight); } } } logcat
10-15 09:09:57.918 23530-23530/? w/system.err﹕ @ com.app.name.widgets.sizenotifierrelativelayout.onlayout(sizenotifierrelativelayout.java:44) 10-15 09:09:57.927 23530-23530/? e/androidruntime﹕ fatal exception: main java.lang.nullpointerexception @ android.widget.abslistview.obtainview(abslistview.java:2247) @ android.widget.listview.makeandaddview(listview.java:1849) @ android.widget.listview.filldown(listview.java:678) @ android.widget.listview.fillfromtop(listview.java:739) @ android.widget.listview.layoutchildren(listview.java:1664) @ android.widget.abslistview.onlayout(abslistview.java:2050) @ android.view.view.layout(view.java:14243) @ android.view.viewgroup.layout(viewgroup.java:4490) @ android.widget.relativelayout.onlayout(relativelayout.java:1021) @ com.app.name.widgets.sizenotifierrelativelayout.onlayout(sizenotifierrelativelayout.java:44) @ android.view.view.layout(view.java:14243) @ android.view.viewgroup.layout(viewgroup.java:4490) @ android.widget.framelayout.onlayout(framelayout.java:448) @ android.view.view.layout(view.java:14243) @ android.view.viewgroup.layout(viewgroup.java:4490) @ android.widget.linearlayout.setchildframe(linearlayout.java:1670) @ android.widget.linearlayout.layoutvertical(linearlayout.java:1528) @ android.widget.linearlayout.onlayout(linearlayout.java:1441) @ android.view.view.layout(view.java:14243) @ android.view.viewgroup.layout(viewgroup.java:4490) @ android.widget.framelayout.onlayout(framelayout.java:448) @ android.view.view.layout(view.java:14243) @ android.view.viewgroup.layout(viewgroup.java:4490) @ android.widget.linearlayout.setchildframe(linearlayout.java:1670) @ android.widget.linearlayout.layoutvertical(linearlayout.java:1528) @ android.widget.linearlayout.onlayout(linearlayout.java:1441) @ android.view.view.layout(view.java:14243) @ android.view.viewgroup.layout(viewgroup.java:4490) @ android.widget.framelayout.onlayout(framelayout.java:448) @ android.view.view.layout(view.java:14243) @ android.view.viewgroup.layout(viewgroup.java:4490) @ android.view.viewrootimpl.performlayout(viewrootimpl.java:2230) @ android.view.viewrootimpl.performtraversals(viewrootimpl.java:1994) @ android.view.viewrootimpl.dotraversal(viewrootimpl.java:1181) @ android.view.viewrootimpl$traversalrunnable.run(viewrootimpl.java:4942) @ android.view.choreographer$callbackrecord.run(choreographer.java:776) @ android.view.choreographer.docallbacks(choreographer.java:579) @ android.view.choreographer.doframe(choreographer.java:548) @ android.view.choreographer$framedisplayeventreceiver.run(choreographer.java:762) @ android.os.handler.handlecallback(handler.java:800) @ android.os.handler.dispatchmessage(handler.java:100) @ android.os.looper.loop(looper.java:194) @ android.app.activitythread.main(activitythread.java:5370) @ java.lang.reflect.method.invokenative(native method) @ java.lang.reflect.method.invoke(method.java:525) @ com.android.internal.os.zygoteinit$methodandargscaller.run(zygoteinit.java:833) @ com.android.internal.os.zygoteinit.main(zygoteinit.java:600) @ dalvik.system.nativestart.main(native method) orginal question-> have statusbar height function giving me a
fatal exception: main java.lang.exceptionininitializererror
the error set of when myactivity calls
androidutilities.statusbarheight = getstatusbarheight(); the function corresponding error:
at com.app.name.androidutilities.(androidutilities.java:31)
is
density = app.getinstance().getresources().getdisplaymetrics().density; as relatively new android , java, appreciate pointers missing. thanks!
myactivity.java
package com.app.name; import com.app.name.widgets.sizenotifierrelativelayout; public class myactivity extends actionbaractivity implements isidenavigationcallback, sizenotifierrelativelayout.sizenotifierrelativelayoutdelegate, notificationcenter.notificationcenterdelegate { private sizenotifierrelativelayout sizenotifierrelativelayout; @override protected void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); setcontentview(r.layout.my_layout); androidutilities.statusbarheight = getstatusbarheight(); sizenotifierrelativelayout = (sizenotifierrelativelayout) findviewbyid(r.id.chat_layout); sizenotifierrelativelayout.delegate = this; notificationcenter.getinstance().addobserver(this, notificationcenter.emojididloaded); } /** * system status bar height * @return */ public int getstatusbarheight() { int result = 0; int resourceid = getresources().getidentifier("status_bar_height", "dimen", "android"); if (resourceid > 0) { result = getresources().getdimensionpixelsize(resourceid); } return result; } } app.java
package com.app.name; import android.app.application; import android.os.handler; public class app extends application { private static app instance; public static volatile handler applicationhandler = null; @override public void oncreate() { super.oncreate(); instance=this; applicationhandler = new handler(getinstance().getmainlooper()); nativeloader.initnativelibs(app.getinstance()); } public static app getinstance() { return instance; } } androidutilities.java
package com.app.name; public class androidutilities { public static float density = 1; public static int statusbarheight = 0; public static point displaysize = new point(); static { density = app.getinstance().getresources().getdisplaymetrics().density; checkdisplaysize(); } } logcat
10-15 07:57:41.119 15076-15076/? w/system.err? @ com.app.name.myactivity.oncreate(myactivity.java:197) 10-15 07:57:41.130 15076-15076/? w/system.err? @ com.app.name.androidutilities.<clinit>(androidutilities.java:31) 10-15 07:57:41.145 15076-15076/? e/androidruntime? fatal exception: main java.lang.exceptionininitializererror @ com.app.name.myactivity.oncreate(myactivity.java:197) @ android.app.activity.performcreate(activity.java:5122) @ android.app.instrumentation.callactivityoncreate(instrumentation.java:1150) @ android.app.activitythread.performlaunchactivity(activitythread.java:2315) @ android.app.activitythread.handlelaunchactivity(activitythread.java:2403) @ android.app.activitythread.access$600(activitythread.java:165) @ android.app.activitythread$h.handlemessage(activitythread.java:1373) @ android.os.handler.dispatchmessage(handler.java:107) @ android.os.looper.loop(looper.java:194) @ android.app.activitythread.main(activitythread.java:5370) @ java.lang.reflect.method.invokenative(native method) @ java.lang.reflect.method.invoke(method.java:525) @ com.android.internal.os.zygoteinit$methodandargscaller.run(zygoteinit.java:833) @ com.android.internal.os.zygoteinit.main(zygoteinit.java:600) @ dalvik.system.nativestart.main(native method) caused by: java.lang.nullpointerexception @ com.app.name.androidutilities.<clinit>(androidutilities.java:31) at com.app.name.myactivity.oncreate(myactivity.java:197) at android.app.activity.performcreate(activity.java:5122) at android.app.instrumentation.callactivityoncreate(instrumentation.java:1150) at android.app.activitythread.performlaunchactivity(activitythread.java:2315) at android.app.activitythread.handlelaunchactivity(activitythread.java:2403) at android.app.activitythread.access$600(activitythread.java:165) at android.app.activitythread$h.handlemessage(activitythread.java:1373) at android.os.handler.dispatchmessage(handler.java:107) at android.os.looper.loop(looper.java:194) at android.app.activitythread.main(activitythread.java:5370) 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:833) at com.android.internal.os.zygoteinit.main(zygoteinit.java:600) at dalvik.system.nativestart.main(native method)
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