android - Collapsing toolbar, tabLayout and ViewPager not working properly after scroll -
i trying create similar layout user profile screen in app. here need: 1. back, plus , image button should in toolbar in collapsed expanded state. 2. toolbar should transparent in expanded state , change color of content scrim on being collapsed. 3. served(180) , cooked(300) text should clickable , lead other activities. 4. on collapsing, tablayout should pinned below toolbar. 5. viewpager attached tabs should work fine , contains listview.
here attempt:
<?xml version="1.0" encoding="utf-8"?> <android.support.design.widget.coordinatorlayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" android:id="@+id/main_content" android:layout_width="match_parent" android:layout_height="match_parent" android:background="#231f20" android:fitssystemwindows="true"> <android.support.v4.view.viewpager android:id="@+id/viewpager" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_margintop="?attr/actionbarsize" app:layout_behavior="@string/appbar_scrolling_view_behavior" /> <android.support.design.widget.tablayout android:id="@+id/tabs" android:layout_width="match_parent" android:layout_height="?attr/actionbarsize" android:layout_gravity="bottom" android:background="#231f20" app:layout_anchor="@+id/appbar" app:layout_anchorgravity="bottom" app:tabgravity="fill" app:tabmode="fixed" /> <android.support.design.widget.appbarlayout android:id="@+id/appbar" android:layout_width="match_parent" android:layout_height="wrap_content" android:fitssystemwindows="true" android:theme="@style/themeoverlay.appcompat.dark.actionbar"> <android.support.design.widget.collapsingtoolbarlayout android:id="@+id/collapsing_toolbar" android:layout_width="match_parent" android:layout_height="match_parent" android:fitssystemwindows="true" app:contentscrim="#fac80a" app:layout_scrollflags="scroll|exituntilcollapsed" app:expandedtitlemarginstart="200dp" app:expandedtitlemarginbottom="110dp"> <relativelayout android:layout_width="match_parent" android:layout_height="wrap_content" android:fitssystemwindows="true" app:layout_collapsemode="parallax"> // contains background image, profile pic,textview etc. </relativelayout> <android.support.v7.widget.toolbar android:id="@+id/toolbar" android:layout_width="match_parent" android:layout_height="?attr/actionbarsize" app:layout_collapsemode="pin" app:popuptheme="@style/themeoverlay.appcompat.light"> </android.support.v7.widget.toolbar> </android.support.design.widget.collapsingtoolbarlayout> </android.support.design.widget.appbarlayout> </android.support.design.widget.coordinatorlayout> problem : clicking anywhere on collapsing toolbar's contents(inside relative layout) in beginning not cause problem scrolling(collapsing toolbar, scrolling viewpager contents, changing tabs) , again come collapsing toolbar in expanded state, , click anywhere on it, app crashes. getting following error:
09-21 07:28:38.740 5462-5462/com.galleri5.android e/inputeventreceiver﹕ exception dispatching input event. 09-21 07:28:38.741 5462-5462/com.galleri5.android e/messagequeue-jni﹕ exception in messagequeue callback: handlereceivecallback 09-21 07:28:38.744 5462-5462/com.galleri5.android e/messagequeue-jni﹕ java.lang.nullpointerexception: attempt invoke virtual method 'float android.view.motionevent.getx()' on null object reference @ android.view.view.ontouchevent(view.java:9321) @ android.support.design.widget.coordinatorlayout.ontouchevent(coordinatorlayout.java:449) @ android.view.view.dispatchtouchevent(view.java:8388) @ android.view.viewgroup.dispatchtransformedtouchevent(viewgroup.java:2424) @ android.view.viewgroup.dispatchtouchevent(viewgroup.java:2158) @ android.view.viewgroup.dispatchtransformedtouchevent(viewgroup.java:2430) @ android.view.viewgroup.dispatchtouchevent(viewgroup.java:2119) @ android.view.viewgroup.dispatchtransformedtouchevent(viewgroup.java:2430) @ android.view.viewgroup.dispatchtouchevent(viewgroup.java:2119) @ android.view.viewgroup.dispatchtransformedtouchevent(viewgroup.java:2430) @ android.view.viewgroup.dispatchtouchevent(viewgroup.java:2119) @ android.view.viewgroup.dispatchtransformedtouchevent(viewgroup.java:2430) @ android.view.viewgroup.dispatchtouchevent(viewgroup.java:2119) @ android.view.viewgroup.dispatchtransformedtouchevent(viewgroup.java:2430) @ android.view.viewgroup.dispatchtouchevent(viewgroup.java:2119) @ android.view.viewgroup.dispatchtransformedtouchevent(viewgroup.java:2430) @ android.view.viewgroup.dispatchtouchevent(viewgroup.java:2119) @ com.android.internal.policy.impl.phonewindow$decorview.superdispatchtouchevent(phonewindow.java:2569) @ com.android.internal.policy.impl.phonewindow.superdispatchtouchevent(phonewindow.java:1743) @ android.app.activity.dispatchtouchevent(activity.java:2739) @ android.support.v7.internal.view.windowcallbackwrapper.dispatchtouchevent(windowcallbackwrapper.java:60) @ android.support.v7.internal.view.windowcallbackwrapper.dispatchtouchevent(windowcallbackwrapper.java:60) @ com.android.internal.policy.impl.phonewindow$decorview.dispatchtouchevent(phonewindow.java:2530) @ android.view.view.dispatchpointerevent(view.java:8578) @ android.view.viewrootimpl$viewpostimeinputstage.processpointerevent(viewrootimpl.java:4028) @ android.view.viewrootimpl$viewpostimeinputstage.onprocess(viewrootimpl.java:3894) @ android.view.viewrootimpl$inputstage.deliver(viewrootimpl.java:3456) @ android.view.viewrootimpl$inputstage.ondelivertonext(viewrootimpl.java:3509) @ android.view.viewrootimpl$inputstage.forward(viewrootimpl.java:3475) @ android.view.viewrootimpl$asyncinputstage.forward(viewrootimpl.java:3585) @ android.view.viewrootimpl$inputstage.apply(viewrootimpl.java:3483) @ android.view.viewrootimpl$asyncinputstage.apply(viewrootimpl.java:3642) @ android.view.viewrootimpl$inputstage.deliver(viewrootimpl.java:3456) @ android.view.viewrootimpl$inputstage.ondelivertonext(viewrootimpl.java:3509) @ android.view.viewrootimpl$inputstage.forward(viewrootimpl.java:3475) @ android.view.viewrootimpl$inputstage.apply(viewrootimpl.java:3483) @ android.view.viewrootimpl$inputstage.deliver(viewrootimpl.java:3456) @ android.view.viewrootimpl.deliverinputevent(viewrootimpl.java:5708) @ android.view.viewrootimpl.doprocessinputevents(viewrootimpl.java:5682) @ android.view.viewrootimpl.enqueueinputevent(viewrootimpl.java:5653) @ android.view.viewrootimpl$windowinputeventreceiver.oninputevent(viewrootimpl.java:5798) @ android.view.inputeventreceiver.dispatchinputevent(inputeventreceiver.java:185) @ android.os.messagequeue.nativepollonce(native method) @ android.os.messagequeue.next(messagequeue.java:143) @ android.os.looper.loop(looper.java:122) @ android.app.activitythread.main(activitythread.java:5254) @ java.lang.reflect.method.invoke(native method) @ java.lang.reflect.method.invoke(method.java:372) @ com.android.internal.os.zygoteinit$methodandargscaller.run(zygoteinit.java:898) @ com.android.internal.os.zygoteinit.main(zygoteinit.java:693) 09-21 07:28:38.747 5462-5462/com.galleri5.android e/androidruntime﹕ fatal exception: main process: com.galleri5.android, pid: 5462 java.lang.nullpointerexception: attempt invoke virtual method 'float android.view.motionevent.getx()' on null object reference @ android.view.view.ontouchevent(view.java:9321) @ android.support.design.widget.coordinatorlayout.ontouchevent(coordinatorlayout.java:449) @ android.view.view.dispatchtouchevent(view.java:8388) @ android.view.viewgroup.dispatchtransformedtouchevent(viewgroup.java:2424) @ android.view.viewgroup.dispatchtouchevent(viewgroup.java:2158) @ android.view.viewgroup.dispatchtransformedtouchevent(viewgroup.java:2430) @ android.view.viewgroup.dispatchtouchevent(viewgroup.java:2119) @ android.view.viewgroup.dispatchtransformedtouchevent(viewgroup.java:2430) @ android.view.viewgroup.dispatchtouchevent(viewgroup.java:2119) @ android.view.viewgroup.dispatchtransformedtouchevent(viewgroup.java:2430) @ android.view.viewgroup.dispatchtouchevent(viewgroup.java:2119) @ android.view.viewgroup.dispatchtransformedtouchevent(viewgroup.java:2430) @ android.view.viewgroup.dispatchtouchevent(viewgroup.java:2119) @ android.view.viewgroup.dispatchtransformedtouchevent(viewgroup.java:2430) @ android.view.viewgroup.dispatchtouchevent(viewgroup.java:2119) @ android.view.viewgroup.dispatchtransformedtouchevent(viewgroup.java:2430) @ android.view.viewgroup.dispatchtouchevent(viewgroup.java:2119) @ com.android.internal.policy.impl.phonewindow$decorview.superdispatchtouchevent(phonewindow.java:2569) @ com.android.internal.policy.impl.phonewindow.superdispatchtouchevent(phonewindow.java:1743) @ android.app.activity.dispatchtouchevent(activity.java:2739) @ android.support.v7.internal.view.windowcallbackwrapper.dispatchtouchevent(windowcallbackwrapper.java:60) @ android.support.v7.internal.view.windowcallbackwrapper.dispatchtouchevent(windowcallbackwrapper.java:60) @ com.android.internal.policy.impl.phonewindow$decorview.dispatchtouchevent(phonewindow.java:2530) @ android.view.view.dispatchpointerevent(view.java:8578) @ android.view.viewrootimpl$viewpostimeinputstage.processpointerevent(viewrootimpl.java:4028) @ android.view.viewrootimpl$viewpostimeinputstage.onprocess(viewrootimpl.java:3894) @ android.view.viewrootimpl$inputstage.deliver(viewrootimpl.java:3456) @ android.view.viewrootimpl$inputstage.ondelivertonext(viewrootimpl.java:3509) @ android.view.viewrootimpl$inputstage.forward(viewrootimpl.java:3475) @ android.view.viewrootimpl$asyncinputstage.forward(viewrootimpl.java:3585) @ android.view.viewrootimpl$inputstage.apply(viewrootimpl.java:3483) @ android.view.viewrootimpl$asyncinputstage.apply(viewrootimpl.java:3642) @ android.view.viewrootimpl$inputstage.deliver(viewrootimpl.java:3456) @ android.view.viewrootimpl$inputstage.ondelivertonext(viewrootimpl.java:3509) @ android.view.viewrootimpl$inputstage.forward(viewrootimpl.java:3475) @ android.view.viewrootimpl$inputstage.apply(viewrootimpl.java:3483) @ android.view.viewrootimpl$inputstage.deliver(viewrootimpl.java:3456) @ android.view.viewrootimpl.deliverinputevent(viewrootimpl.java:5708) @ android.view.viewrootimpl.doprocessinputevents(viewrootimpl.java:5682) @ android.view.viewrootimpl.enqueueinputevent(viewrootimpl.java:5653) @ android.view.viewrootimpl$windowinputeventreceiver.oninputevent(viewrootimpl.java:5798) @ android.view.inputeventreceiver.dispatchinputevent(inputeventreceiver.java:185) @ android.os.messagequeue.nativepollonce(native method) @ android.os.messagequeue.next(messagequeue.java:143) @ android.os.looper.loop(looper.java:122) @ android.app.activitythread.main(activitythread.java:5254) @ java.lang.reflect.method.invoke(native method) @ java.lang.reflect.method.invoke(method.java:372) @ com.android.internal.os.zygoteinit$methodandargscaller.run(zygoteinit.java:898) @ com.android.internal.os.zygoteinit.main(zygoteinit.java:693) what reason of behavior , how rectify this.
this issue of android support library.
see link details coordinatorlayout nullpointerexception in ontouchevent
according above link issue has been fixed in android support library version-23.0.1
update android support library solve error.
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